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Table of Contents
INTRODUCTION
WHAT IS OBD? .................................................................................... 1
YOU CAN DO IT! ...........................................................................................
SAFETY PRECAUTIONS
SAFETY FIRST! ................................................................................... 3
ABOUT THE SCAN TOOL
VEHICLES COVERED ......................................................................... 5
BATTERY REPLACEMENT ................................................................. 6
SCAN TOOL CONTROLS
CONTROLS AND INDICATORS .......................................................... 8
DISPLAY FUNCTIONS ........................................................................ 9
ONBOARD DIAGNOSTICS
COMPUTER ENGINE CONTROLS ..................................................... 12
DIAGNOSTIC TROUBLE CODES (DTCs) ............................................ 17
OBD2 MONITORS ............................................................................... 20
PREPARATION FOR TESTING
PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET....................... 29
BEFORE YOU BEGIN .......................................................................... 32
VEHICLE SERVICE MANUALS ........................................................... 33
USING THE SCAN TOOL
CODE RETRIEVAL PROCEDURE ...................................................... 34
THE ENHANCED MENU....................................................................... 41
VIEWING ENHANCED DTCs................................................................ 42
VIEWING ABS DTCs ........................................................................... 50
ERASING DIAGNOSTIC TROUBLE CODES (DTCs) .......................... 54
I/M READINESS TESTING .................................................................. 56
LIVE DATA MODE
VIEWING LIVE DATA............................................................................ 61
CUSTOMIZING LIVE DATA (PIDs) ...................................................... 62
RECORDING (CAPTURING) LIVE DATA ............................................ 63
LIVE DATA PLAYBACK ........................................................................ 67
ADDITIONAL TESTS
SPECIAL TEST MENU ......................................................................... 70
VIEWING VEHICLE INFORMATION .................................................... 74
ADJUSTMENTS AND SETTINGS ....................................................... 77
USING SCAN TOOL MEMORY
VIEWING DATA IN MEMORY .............................................................. 84
GENERIC (GLOBAL) OBD2 PID LIST ..........................................................
VEHICLE APPLICATIONS - ABS
ABS APPLICATIONS – DOMESTIC .................................................... 91
ABS APPLICATIONS – IMPORT ......................................................... 94
GLOSSARY
GLOSSARY OF TERMS AND ABBREVIATIONS ................................. 96
WARRANTY AND SERVICING
LIMITED ONE YEAR WARRANTY ...................................................... 101
............................................................
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Introduction
WHAT IS OBD?
WHAT IS OBD?
The FixAssist Scan Tool is designed to work on all OBD2 compliant vehicles. All 1996 and newer vehicles (cars, light trucks and SUVs) sold in the United States are OBD2 compliant.
One of the most exciting improvements in the automobile industry was the addition of onboard diagnostics (OBD) on vehicles, or in more basic terms, the computer that activates the vehicle’s “CHECK ENGINE” light. OBD1 was designed to monitor manufacturer-specific systems on vehicles built from 1981 to 1995.
Then came the development of OBD2, which is on all 1996 cars and light trucks sold in the U.S. Like its predecessor,
OBD2 was adopted as part of a government mandate to lower vehicle emissions. But what makes OBD2 unique is its universal application for all late model cars and trucks - domestic and import. This sophisticated program in the vehicle’s main computer system is designed to detect failures in a range of systems, and can be accessed through a universal
OBD2 port, which is usually found under the dashboard. For all OBD systems, if a problem is found, the computer turns on the “CHECK
ENGINE” light to warn the driver, and sets a Diagnostic Trouble Code
(DTC) to identify where the problem occurred. A special diagnostic tool, such as the FixAssist Scan Tool, is required to retrieve these codes, which consumers and professionals use as a starting point for repairs.
The FixAssist Scan Tool includes a "solutions database" (Fix Assist) with recommended inspection and repair procedures for most DTCs.
The Scan Tool also provides the additional ability to retrieve enhanced
DTCs from most Chrysler/Jeep, Ford/Mazda, GM/Isuzu, Honda/Acura and Toyota/Lexus vehicles, as well as Anti-Lock Brake System (ABS)
DTCs and vehicle information. The types of enhanced data available depends on the vehicle make.
Additionally, the FixAssist Scan Tool includes a database containing recommended inspection and repair actions for most DTCs.
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You Can Do It!
EASY TO USE - EASY TO VIEW - EASY TO DEFINE
Easy To Use . . . .
Connect the Scan Tool to the vehicle’s test connector.
Turn the ignition key "On.”
The tool will automatically link to the vehicle’s computer.
Easy To View . . . .
The Scan Tool retrieves stored codes,
Freeze Frame data and system status.
Codes, system status and Freeze
Frame data are displayed on the Scan
Tool’s display screen. System status is indicated by LED indicators.
Easy To Define . . . .
Read code definitions from the Scan
Tool’s display.
View Freeze Frame data.
View Live Data.
Use Fix Assist to obtain recommended inspection and repair procedures for most DTCs.
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SAFETY FIRST!
Safety Precautions
SAFETY FIRST!
To avoid personal injury, instrument damage and/or damage to your vehicle; do not use the OBD2 Scan Tool
before reading this manual.
This manual describes common test procedures used by experienced service technicians. Many test procedures require precautions to avoid accidents that can result in personal injury, and/or damage to your vehicle or test equipment. Always read your vehicle's service manual and follow its safety precautions before and during any test or service procedure. ALWAYS observe the following general safety precautions:
When an engine is running, it produces carbon monoxide, a toxic and poisonous gas. To prevent serious injury or death from carbon monoxide poisoning, operate the vehicle ONLY in a well-ventilated area.
P
R
To protect your eyes from propelled objects as well as hot or caustic liquids, always wear approved safety eye protection.
When an engine is running, many parts (such as the coolant fan, pulleys, fan belt etc.) turn at high speed. To avoid serious injury, always be aware of moving parts.
Keep a safe distance from these parts as well as other potentially moving objects.
Engine parts become very hot when the engine is running.
To prevent severe burns, avoid contact with hot engine parts.
Before starting an engine for testing or troubleshooting, make sure the parking brake is engaged. Put the transmission in park (for automatic transmission) or
neutral (for manual transmission). Block the drive wheels with suitable blocks.
Connecting or disconnecting test equipment when the ignition is ON can damage test equipment and the vehicle's electronic components. Turn the ignition OFF before connecting the Scan Tool to or disconnecting the
Scan Tool from the vehicle’s Data Link Connector (DLC).
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Safety Precautions
SAFETY FIRST!
To prevent damage to the on-board computer when taking vehicle electrical measurements, always use a digital multimeter with at least 10 MegOhms of impedance.
Fuel and battery vapors are highly flammable. To prevent an explosion, keep all sparks, heated items and open flames away from the battery and fuel / fuel vapors. DO
NOT SMOKE NEAR THE VEHICLE DURING TESTING.
Don't wear loose clothing or jewelry when working on an engine. Loose clothing can become caught in the fan, pulleys, belts, etc. Jewelry is highly conductive, and can cause a severe burn if it makes contact between a power source and ground.
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About the Scan Tool
VEHICLES COVERED
VEHICLES COVERED
The FixAssist Scan Tool is designed to work on all OBD2 compliant vehicles. All 1996 and newer vehicles (cars and light trucks) sold in the
United States are OBD2 compliant.
Federal law requires that all 1996 and newer cars and light trucks sold in the United States must be OBD2 compliant; this includes all Domestic, Asian and European vehicles.
Some 1994 and 1995 vehicles are OBD2 compliant. To find out if a
1994 or 1995 vehicle is OBD2 compliant, check the following:
1.
The Vehicle Emissions Control Information (VECI) Label. This label is located under the hood or by the radiator of most vehicles. If the vehicle is OBD2 compliant, the label will state “OBD II
Certified.”
VEHICLE EMISSION CONTROL INFORMATION
VEHICLE
MANUFACTURER
ENGINE FAMILY EFN2.6YBT2BA
DISPLACEMENT 2.6L
OBD II
CERTIFIED
THIS VEHICLE CONFORMS TO U.S. EPA AND STATE
OF CALIFORNIA REGULATIONS APPLICABLE TO
1999 MODEL YEAR NEW TLEV PASSENGER CARS.
REFER TO SERVICE MANUAL FOR ADDITIONAL INFORMATION
TUNE-UP CONDITIONS: NORMAL OPERATING ENGINE TEMPERATURE,
ACCESSORIES OFF, COOLING FAN OFF, TRANSMISSION IN NEUTRAL
EXHAUST EMISSIONS STANDARDS STANDARD CATEGORY
CERTIFICATION
IN-USE
TLEV
TLEV INTERMEDIATE
SPARK PLUG
TYPE NGK BPRE-11
GAP: 1.1MM
CATALYST
OBD II
CERTIFIED
2.
Government Regulations require that all
OBD2 compliant vehicles must have a
“common” sixteen-pin Data Link
Connector (DLC).
1 2 3 4 5 6 7 8
9 10111213141516
Some 1994 and 1995 vehicles have 16-pin connectors but are not OBD2 compliant. Only those vehicles with a Vehicle
Emissions Control Label stating “OBD II Certified” are OBD2 compliant.
Data Link Connector (DLC) Location
The 16-pin DLC is usually located under the instrument panel (dash), within 12 inches
(300 mm) of center of the panel, on the driver’s side of most vehicles. It should be easily accessible and visible from a kneeling position outside the vehicle with the door open.
LEFT CORNER
OF DASH
NEAR
CENTER
OF DASH
BEHIND
ASHTRAY
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About the Scan Tool
BATTERY REPLACEMENT
On some Asian and European vehicles the DLC is located behind the “ashtray” (the ashtray must be removed to access it) or on the far left corner of the dash. If the DLC cannot be located, consult the vehicle’s service manual for the location.
BATTERY REPLACEMENT
Replace batteries when the battery symbol is visible on display and/or the 3 LEDS are all lit and no other data is visible on screen.
1.
Locate the battery cover on the back of the Scan Tool.
2.
Slide the battery cover off (use your fingers).
3.
Replace batteries with three AA-size batteries (for longer life, use
Alkaline-type batteries).
4.
Reinstall the battery cover on the back of the Scan Tool.
Installing the Secure Digital (SD) Card
The Scan Tool includes a pre-installed Secure Digital (SD) memory card that contains code definitions and the FixAssist database. The SD card must be installed in the Scan Tool to make use of all available tool features and functions. If necessary, insert the SD card in the card slot before turning the tool on or linking to a vehicle.
If the SD card is not installed, or is damaged, an advisory message shows on the Scan Tool’s display. Install or replace the SD card, as necessary before linking to a vehicle.
Adjustments After Battery Installation
The first time the Scan Tool is turned on, you must select the desired display language (English, French or Spanish) and unit of measurement
(USA or Metric) as follows:
1.
Press the POWER/LINK turn the Scan Tool “ON.”
button to
The Select Language screen displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight the desired display language.
3.
When the desired display language is selected, press the ENTER
button to confirm your selection.
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About the Scan Tool
BATTERY REPLACEMENT
The Select Unit screen displays.
4.
Use the UP
and DOWN buttons, as necessary, to highlight the desired unit of measurement.
5.
When the desired unit of measurement is selected, press the ENTER button to confirm your selection.
After the initial language and unit of measurement selections are performed, these, as well as other settings, can be
changed as desired. Proceed to “ADJUSTMENTS AND
SETTINGS” on page 77 for further instructions.
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Scan Tool Controls
CONTROLS AND INDICATORS
CONTROLS AND INDICATORS
8
7
1
2
3
6
12
11
9
10
4
5
Figure 1. Controls and Indicators
See Figure 1 for the locations of items 1 through 12, below.
1.
ERASE button - Erases Diagnostic Trouble Codes (DTCs), and
“Freeze Frame” data from your vehicle’s computer, and resets
Monitor status.
2.
ENTER button - When in MENU mode, confirms the selected option or value.
3.
DTC/FF button - Displays the DTC View screen and/or scrolls the LCD display to view DTCs and Freeze Frame data.
4.
POWER/LINK button - When the Scan Tool IS NOT connected to a vehicle, turns the Scan Tool “On” and “Off”. When the Scan
Tool is connected to a vehicle, links the Scan Tool to the vehicle’s
PCM to retrieve diagnostic data from the computer’s memory.
To turn the Scan Tool "On", you must press and hold the
POWER/LINK button for approximately 3 seconds.
5.
LD/M button – When pressed while linked to a vehicle, places the Scan Tool in "Live Data" mode. When pressed and held while linked to a vehicle, displays the “Mode Selection Menu.”
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Scan Tool Controls
DISPLAY FUNCTIONS
6.
DOWN button - When in MENU mode, scrolls DOWN through the menu and submenu selection options. When LINKED to a vehicle, scrolls DOWN through the current display screen to display any additional data.
7.
UP button - When in MENU mode, scrolls UP through the menu and submenu selection options. When LINKED to a vehicle, scrolls
UP through the current display screen to display any additional data.
8.
GREEN LED - Indicates that all engine systems are running normally (all Monitors on the vehicle are active and performing their diagnostic testing, and no DTCs are present).
9.
YELLOW LED - Indicates there is a possible problem. A “Pending”
DTC is present and/or some of the vehicle’s emission monitors have not run their diagnostic testing.
10.
RED LED - Indicates there is a problem in one or more of the vehicle’s systems. The red LED is also used to show that DTC(s) are present. DTCs are shown on the Scan Tool’s display. In this case, the Malfunction Indicator (“Check Engine”) lamp on the vehicle’s instrument panel will light steady on.
11.
Display - Displays settings Menu and submenus, test results, Scan
Tool functions and Monitor status information. See DISPLAY
FUNCTIONS, following, for more details.
12.
CABLE - Connects the Scan Tool to the vehicle’s Data Link
Connector (DLC).
DISPLAY FUNCTIONS
2 1 11 12 13
3
4
5
6
7
8
14
10
9
Figure 2. Display Functions
See Figure 2 for the locations of items 1 through 14, following.
1.
I/M MONITOR STATUS field - Identifies the I/M Monitor status area.
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Scan Tool Controls
DISPLAY FUNCTIONS
2.
Monitor icons - Indicate which Monitors are supported by the vehicle under test, and whether or not the associated Monitor has run its diagnostic testing (Monitor status). When a Monitor icon is solid, it indicates that the associated Monitor has completed its diagnostic testing. When a Monitor icon is flashing, it indicates that the vehicle supports the associated Monitor, but the Monitor has not yet run its diagnostic testing.
3.
Vehicle icon - Indicates whether or not the Scan Tool is being properly powered through the vehicle’s Data Link Connector (DLC).
A visible icon indicates that the Scan Tool is being powered through the vehicle’s DLC connector.
4.
Link icon - Indicates whether or not the Scan Tool is communicating (linked) with the vehicle’s on-board computer. When visible, the Scan Tool is communicating with the computer. If the
Link icon is not visible, the Scan Tool is not communicating with the computer.
5.
Computer icon - When this icon is visible it indicates that the
Scan Tool is linked to a personal computer. Optional software is available that makes it possible to upload retrieved data to a personal computer.
6.
Scan Tool Internal Battery icon - When visible, indicates the
Scan Tool batteries are “low” and should be replaced. If the batteries are not replaced when the battery symbol is "on", all 3
LEDs will light up as a last resort indicator to warn you that the batteries need replacement. No data will be displayed on screen when all 3 LEDs are lit.
7.
DTC Display Area - Displays the Diagnostic Trouble Code (DTC) number. Each fault is assigned a code number that is specific to that fault.
8.
Test Data Display Area - Displays DTC definitions, Freeze Frame data, Live Data and other pertinent test information messages.
9.
FREEZE FRAME icon - Indicates that there is Freeze Frame data from “Priority Code” (Code #1) stored in the vehicle’s computer memory.
10.
PERMANENT icon - Indicates the currently displayed DTC is a
“Permanent” code.
11.
PENDING icon - Indicates the currently displayed DTC is a
“Pending” code.
12.
MIL icon - Indicates the status of the Malfunction Indicator Lamp
(MIL). The MIL icon is visible only when a DTC has commanded the
MIL on the vehicle’s dashboard to light.
13.
Code Number Sequence - The Scan Tool assigns a sequence number to each DTC that is present in the computer’s memory, starting with “01.” This number indicates which code is currently displayed. Code number “01” is always the highest priority code, and the one for which “Freeze Frame” data has been stored.
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Scan Tool Controls
DISPLAY FUNCTIONS
If “01” is a “Pending” code, there may or may not be “Freeze
Frame” data stored in memory.
14.
Code Enumerator - Indicates the total number of codes retrieved from the vehicle’s computer.
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Onboard Diagnostics
COMPUTER ENGINE CONTROLS
COMPUTER ENGINE CONTROLS
The Introduction of Electronic Engine Controls
Electronic Computer Control Systems make it possible for vehicle manufacturers to comply with the tougher emissions and fuel efficiency standards mandated by
State and Federal Governments.
As a result of increased air pollution (smog) in large cities, such as Los Angeles, the California Air Resources Board
(CARB) and the Environmental Protection Agency (EPA) set new regulations and air pollution standards to deal with the problem. To further complicate matters, the energy crisis of the early 1970s caused a sharp increase in fuel prices over a short period. As a result, vehicle manufacturers were not only required to comply with the new emissions standards, they also had to make their vehicles more fuel-efficient. Most vehicles were required to meet a miles-per-gallon (MPG) standard set by the U.S.
Federal Government.
Precise fuel delivery and spark timing are needed to reduce vehicle emissions. Mechanical engine controls in use at the time (such as ignition points, mechanical spark advance and the carburetor) responded too slowly to driving conditions to properly control fuel delivery and spark timing. This made it difficult for vehicle manufacturers to meet the new standards.
A new Engine Control System had to be designed and integrated with the engine controls to meet the stricter standards. The new system had to:
Respond instantly to supply the proper mixture of air and fuel for any driving condition (idle, cruising, low-speed driving, high-speed driving, etc.).
Calculate instantly the best time to “ignite” the air/fuel mixture for maximum engine efficiency.
Perform both these tasks without affecting vehicle performance or fuel economy.
Vehicle Computer Control Systems can perform millions of calculations each second. This makes them an ideal substitute for the slower mechanical engine controls. By switching from mechanical to electronic engine controls, vehicle manufacturers are able to control fuel delivery and spark timing more precisely. Some newer Computer Control
Systems also provide control over other vehicle functions, such as transmission, brakes, charging, body, and suspension systems.
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Onboard Diagnostics
COMPUTER ENGINE CONTROLS
The Basic Engine Computer Control System
The Computer Control System consists of an on-board computer and several related control devices (sensors,
switches, and actuators).
The on-board computer is the heart of the Computer
Control System. The computer contains several programs with preset reference values for air/fuel ratio, spark or ignition timing, injector pulse width, engine speed, etc.
Separate values are provided for various driving conditions, such as idle, low speed driving, high-speed driving, low load, or high load. The preset reference values represent the ideal air/fuel mixture, spark timing, transmission gear selection, etc., for any driving condition. These values are programmed by the vehicle manufacturer, and are specific to each vehicle model.
Most on-board computers are located inside the vehicle behind the dashboard, under the passenger’s or driver’s seat, or behind the right kick panel. However, some manufacturers may still position it in the engine compartment.
Vehicle sensors, switches, and actuators are located throughout the engine, and are connected by electrical wiring to the on-board computer.
These devices include oxygen sensors, coolant temperature sensors, throttle position sensors, fuel injectors, etc. Sensors and switches are
input devices. They provide signals representing current engine operating conditions to the computer. Actuators are output devices. They perform actions in response to commands received from the computer.
The on-board computer receives information inputs from sensors and switches located throughout the engine. These devices monitor critical engine conditions such as coolant temperature, engine speed, engine load, throttle position, air/fuel ratio etc.
The computer compares the values received from these sensors with its preset reference values, and makes corrective actions as needed so that the sensor values always match the preset reference values for the current driving condition. The computer makes adjustments by commanding other devices such as the fuel injectors, idle air control,
EGR valve or Ignition Module to perform these actions.
TYPICAL COMPUTER
CONTROL SYSTEM
OUTPUT DEVICES
Fuel Injectors
Idle Air Control
EGR Valve
Ignition Module
On-Board
Computer
INPUT DEVICES
Coolant Temperature Sensor
Throttle Position Sensor
Fuel Injectors
INPUT DEVICES
Oxygen Sensors
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Onboard Diagnostics
COMPUTER ENGINE CONTROLS
Vehicle operating conditions are constantly changing. The computer continuously makes adjustments or corrections (especially to the air/fuel mixture and spark timing) to keep all the engine systems operating within the preset reference values.
On-Board Diagnostics - First Generation (OBD1)
With the exception of some 1994 and 1995 vehicles, most vehicles from 1982 to 1995 are equipped with
some type of first generation On-Board Diagnostics.
Beginning in 1988, California’s Air Resources Board
(CARB), and later the Environmental Protection Agency (EPA) required vehicle manufacturers to include a self-diagnostic program in their on-board computers. The program would be capable of identifying emissions-related faults in a system. The first generation of Onboard Diagnostics came to be known as
OBD1.
OBD1 is a set of self-testing and diagnostic instructions programmed into the vehicle’s on-board computer. The programs are specifically designed to detect failures in the sensors, actuators, switches and wiring of the various vehicle emissions-related systems. If the computer detects a failure in any of these components or systems, it lights an indicator on the dashboard to alert the driver. The indicator lights only when an emissions-related problem is detected.
The computer also assigns a numeric code for each specific problem that it detects, and stores these codes in its memory for later retrieval.
These codes can be retrieved from the computer’s memory with the use of a “Code Reader” or a “Scan Tool.”
On-Board Diagnostics - Second Generation (OBD2)
In addition to performing all the functions of the OBD1 System, the
OBD2 System has been enhanced with new Diagnostic Programs. These
The OBD2 System is an enhancement of the
programs closely monitor the functions of various emissions-related compo-
OBD1 System. nents and systems (as well as other systems) and make this information readily available (with the proper equipment) to the technician for evaluation.
The California Air Resources Board (CARB) conducted studies on OBD1 equipped vehicles. The information that was gathered from these studies showed the following:
A large number of vehicles had deteriorating or degraded emissions-related components. These components were causing an increase in emissions.
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Onboard Diagnostics
COMPUTER ENGINE CONTROLS
Because OBD1 systems only detect failed components, the degraded components were not setting codes.
Some emissions problems related to degraded components only occur when the vehicle is being driven under a load. The emission checks being conducted at the time were not performed under simulated driving conditions. As a result, a significant number of vehicles with degraded components were passing Emissions Tests.
Codes, code definitions, diagnostic connectors, communication protocols and emissions terminology were different for each manufacturer. This caused confusion for the technicians working on different make and model vehicles.
To address the problems made evident by this study, CARB and the
EPA passed new laws and standardization requirements. These laws required that vehicle manufacturers to equip their new vehicles with devices capable of meeting all of the new emissions standards and regulations. It was also decided that an enhanced on-board diagnostic system, capable of addressing all of these problems, was needed. This new system is known as “On-Board Diagnostics Generation Two
(OBD2).” The primary objective of the OBD2 system is to comply with the latest regulations and emissions standards established by CARB and the EPA.
The Main Objectives of the OBD2 System are:
To detect degraded and/or failed emissions-related components or systems that could cause tailpipe emissions to exceed by 1.5 times the Federal Test Procedure (FTP) standard.
To expand emissions-related system monitoring. This includes a set of computer run diagnostics called Monitors. Monitors perform diagnostics and testing to verify that all emissions-related components and/or systems are operating correctly and within the manufacturer’s specifications.
To use a standardized Diagnostic Link Connector (DLC) in all vehicles. (Before OBD2, DLCs were of different shapes and sizes.)
To standardize the code numbers, code definitions and language used to describe faults. (Before OBD2, each vehicle manufacturer used their own code numbers, code definitions and language to describe the same faults.)
To expand the operation of the Malfunction Indicator Lamp (MIL).
To standardize communication procedures and protocols between the diagnostic equipment (Scan Tools, Code Readers, etc.) and the vehicle’s on-board computer.
OBD2 Terminology
The following terms and their definitions are related to OBD2 systems.
Read and reference this list as needed to aid in the understanding of
OBD2 systems.
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Onboard Diagnostics
COMPUTER ENGINE CONTROLS
Powertrain Control Module (PCM) - The PCM is the OBD2 accepted term for the vehicle’s “on-board computer.” In addition to controlling the engine management and emissions systems, the PCM also participates in controlling the powertrain
(transmission) operation. Most PCMs also have the ability to communicate with other computers on the vehicle (ABS, ride control, body, etc.).
Monitor - Monitors are “diagnostic routines” programmed into the
PCM. The PCM utilizes these programs to run diagnostic tests, and to monitor operation of the vehicle’s emissions-related components or systems to ensure they are operating correctly and within the vehicle’s manufacturer specifications. Currently, up to eleven
Monitors are used in OBD2 systems. Additional Monitors will be added as the OBD2 system is further developed.
Not all vehicles support all fifteen Monitors.
Enabling Criteria - Each Monitor is designed to test and monitor the operation of a specific part of the vehicle’s emissions system
(EGR system, oxygen sensor, catalytic converter, etc.). A specific set of “conditions” or “driving procedures” must be met before the computer can command a Monitor to run tests on its related system.
These “conditions” are known as “Enabling Criteria.” The requirements and procedures vary for each Monitor. Some Monitors only require the ignition key to be turned “On” for them to run and complete their diagnostic testing. Others may require a set of complex procedures, such as, starting the vehicle when cold, bringing it to operating temperature, and driving the vehicle under specific conditions before the Monitor can run and complete its diagnostic testing.
Monitor Has/Has Not Run - The terms “Monitor has run” or
“Monitor has not run” are used throughout this manual. “Monitor
has run,” means the PCM has commanded a particular Monitor to perform the required diagnostic testing on a system to ensure the system is operating correctly (within factory specifications). The term
“Monitor has not run” means the PCM has not yet commanded a particular Monitor to perform diagnostic testing on its associated part of the emissions system.
Trip - A Trip for a particular Monitor requires that the vehicle is being driven in such a way that all the required “Enabling Criteria” for the Monitor to run and complete its diagnostic testing are met.
The “Trip Drive Cycle” for a particular Monitor begins when the ignition key is turned “On.” It is successfully completed when all the
“Enabling Criteria” for the Monitor to run and complete its diagnostic testing are met by the time the ignition key is turned “Off.” Since each of the eleven monitors is designed to run diagnostics and testing on a different part of the engine or emissions system, the
“Trip Drive Cycle” needed for each individual Monitor to run and complete varies.
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Onboard Diagnostics
DIAGNOSTIC TROUBLE CODES (DTCs)
OBD2 Drive Cycle - An OBD2 Drive Cycle is an extended set of driving procedures that takes into consideration the various types of driving conditions encountered in real life. These conditions may include starting the vehicle when it is cold, driving the vehicle at a steady speed (cruising), accelerating, etc. An OBD2 Drive Cycle begins when the ignition key is turned “On” (when cold) and ends when the vehicle has been driven in such a way as to have all the
“Enabling Criteria” met for all its applicable Monitors. Only those trips that provide the Enabling Criteria for all Monitors applicable to the vehicle to run and complete their individual diagnostic tests qualify as an OBD2 Drive Cycle. OBD2 Drive Cycle requirements vary from one model of vehicle to another. Vehicle manufacturers set these procedures. Consult your vehicle’s service manual for
OBD2 Drive Cycle procedures.
Do not confuse a “Trip” Drive Cycle with an OBD2 Drive Cycle. A
“Trip” Drive Cycle provides the “Enabling Criteria” for one specific
Monitor to run and complete its diagnostic testing. An OBD2 Drive
Cycle must meet the “Enabling Criteria” for all Monitors on a particular vehicle to run and complete their diagnostic testing.
Warm-up Cycle - Vehicle operation after an engine off period where engine temperature rises at least 40°F (22°C) from its temperature before starting, and reaches at least 160°F (70°C). The PCM uses warm-up cycles as a counter to automatically erase a specific code and related data from its memory. When no faults related to the original problem are detected within a specified number of warm-up cycles, the code is erased automatically.
DIAGNOSTIC TROUBLE CODES (DTCs)
Diagnostic Trouble Codes (DTCs) are meant to guide you to the proper service procedure in the vehicle’s service manual. DO NOT replace parts based only on DTCs without first consulting the vehicle’s service manual for proper testing procedures for that particular system, circuit or component.
Diagnostic Trouble
Codes (DTCs) are codes that identify a specific problem area.
DTCs are alphanumeric codes that are used to identify a problem that is present in any of the systems that are monitored by the on-board computer (PCM). Each trouble code has an assigned message that identifies the circuit, component or system area where the problem was found.
OBD2 diagnostic trouble codes are made up of five characters:
The 1st character is a letter. It identifies the “main system” where the fault occurred (Body, Chassis, Powertrain, or Network).
The 2nd character is a numeric digit. It identifies the “type” of code
(Generic or Manufacturer-Specific).
Generic DTCs are codes that are used by all vehicle manufacturers. The standards for generic DTCs, as well as their definitions, are set by the Society of Automotive
Engineers (SAE).
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Onboard Diagnostics
DIAGNOSTIC TROUBLE CODES (DTCs)
Manufacturer-Specific DTCs are codes that are controlled by the vehicle manufacturers. The Federal Government does not require vehicle manufacturers to go beyond the standardized generic DTCs in order to comply with the new OBD2 emissions standards. However, manufacturers are free to expand beyond the standardized codes to make their systems easier to diagnose.
The 3rd character is a numeric digit. It identifies the specific system or sub-system where the problem is located.
The 4th and 5th characters are numeric digits. They identify the section of the system that is malfunctioning.
OBD2 DTC EXAMPLE
P0201 - Injector Circuit Malfunction, Cylinder 1
P 0 2 0 1
B
-
C
P
-
-
U
-
Body
Chassis
Powertrain
Network
0
1
2
3
-
-
-
-
Generic
Manufacturer Specific
Generic
Includes both Generic and Manufacturer
Specific Codes
Identifies the system where the problem is located:
1
2
3
4
5
6
7
8
-
-
-
-
-
-
-
-
Fuel and Air Metering
Fuel and Air Metering (injector circuit malfunction only)
Ignition System or Misfire
Auxiliary Emission Control System
Vehicle Speed Control and Idle Control
System
Computer Output Circuits
Transmission
Transmission
Identifies what section of the system is malfunctioning
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Onboard Diagnostics
DIAGNOSTIC TROUBLE CODES (DTCs)
DTCs and MIL Status
When the vehicle’s on-board computer detects a failure in an emissions-related component or system, the computer’s internal diagnostic program assigns a diagnostic trouble code
(DTC) that points to the system (and subsystem) where the fault was found. The diagnostic program saves the code in the computer’s memory. It records a “Freeze Frame” of conditions present when the fault was found, and lights the Malfunction
Indicator Lamp (MIL). Some faults require detection for two trips in a row before the MIL is turned on.
The “Malfunction Indicator Lamp” (MIL) is the accepted term used to describe the lamp on the dashboard that lights to warn the driver that an emissions-related fault has been found.
Some manufacturers may still call this lamp a “Check Engine” or “Service Engine Soon” light.
There are two types of DTCs used for emissions-related faults: Type “A” and Type “B.” Type “A” codes are “One-Trip” codes; Type “B” DTCs are usually Two-Trip DTCs.
When a Type “A” DTC is found on the First Trip, the following events take place:
The computer commands the MIL “On” when the failure is first found.
If the failure causes a severe misfire that may cause damage to the catalytic converter, the MIL “flashes” once per second. The MIL continues to flash as long as the condition exists. If the condition that caused the MIL to flash is no longer present, the MIL will light
“steady” On.
A DTC is saved in the computer’s memory for later retrieval.
A “Freeze Frame” of the conditions present in the engine or emissions system when the MIL was ordered “On” is saved in the computer’s memory for later retrieval. This information shows fuel system status
(closed loop or open loop), engine load, coolant temperature, fuel trim value, MAP vacuum, engine RPM and DTC priority.
When a Type “B” DTC is found on the First Trip, the following events take place:
The computer sets a Pending DTC, but the MIL is not ordered “On.”
“Freeze Frame” data may or may not be saved at this time depending on manufacturer. The Pending DTC is saved in the computer’s memory for later retrieval.
If the failure is found on the second consecutive trip, the MIL is ordered “On.” “Freeze Frame” data is saved in the computer’s memory.
If the failure is not found on the second Trip, the Pending DTC is erased from the computer’s memory.
The MIL will stay lit for both Type “A” and Type “B” codes until one of the following conditions occurs:
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Onboard Diagnostics
OBD2 MONITORS
If the conditions that caused the MIL to light are no longer present for the next three trips in a row, the computer automatically turns the
MIL “Off” if no other emissions-related faults are present. However, the DTCs remain in the computer’s memory as a history code for 40 warm-up cycles (80 warm-up cycles for fuel and misfire faults). The
DTCs are automatically erased if the fault that caused them to be set is not detected again during that period.
Misfire and fuel system faults require three trips with “similar conditions” before the MIL is turned “Off.” These are trips where the engine load, RPM and temperature are similar to the conditions present when the fault was first found.
After the MIL has been turned off, DTCs and Freeze Frame data stay in the computer’s memory.
Erasing the DTCs from the computer’s memory can also turn off the
Diagnostic Tool or Scan Tool is used to erase the codes, Freeze
Frame data will also be erased.
OBD2 MONITORS
To ensure the correct operation of the various emissions-related components and systems, a diagnostic program was developed and installed in the vehicle’s on-board computer. The program has several procedures and diagnostic strategies. Each procedure or diagnostic strategy is made to monitor the operation of, and run diagnostic tests on, a specific emissions-related component or system. These tests ensure the system is running correctly and is within the manufacturer’s specifications. On OBD2 systems, these procedures and diagnostic strategies are called “Monitors.”
Currently, fifteen Monitors are supported by OBD2 systems. Additional monitors may be added as a result of Government regulations as the
OBD2 system grows and matures. Not all vehicles support all fifteen
Monitors. Additionally, some Monitors are supported by “spark ignition” vehicles only, while others are supported by “compression ignition” vehicles only.
Monitor operation is either “Continuous” or “Non-Continuous,” depending on the specific monitor.
Continuous Monitors
Three of these Monitors are designed to constantly monitor their associated components and/or systems for proper operation.
Continuous Monitors run constantly when the engine is running. The
Continuous Monitors are:
Comprehensive Component Monitor (CCM)
Misfire Monitor
Fuel System Monitor
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Onboard Diagnostics
OBD2 MONITORS
Non-Continuous Monitors
The other twelve Monitors are “non-continuous” Monitors. “Noncontinuous” Monitors perform and complete their testing once per trip.
The “non-continuous” Monitors are:
Oxygen Sensor Monitor
Oxygen Sensor Heater Monitor
Catalyst Monitor
Heated Catalyst Monitor
EGR System Monitor
EVAP System Monitor
Secondary Air System Monitor
The following Monitors became standard beginning in 2010.
The majority of vehicles produced before this time will not support these Monitors
NMHC Monitor
NOx Adsorber Monitor
Boost Pressure System Monitor
Exhaust Gas Sensor Monitor
PM Filter Monitor
The following provides a brief explanation of the function of each Monitor:
Comprehensive Component Monitor (CCM) - This Monitor continuously checks all inputs and outputs from sensors, actuators, switches and other devices that provide a signal to the computer. The Monitor checks for shorts, opens, out of range value, functionality and “rationality.”
Rationality: Each input signal is compared against all other inputs and against information in the computer’s memory to see if it makes sense under the current operating conditions.
Example: The signal from the throttle position sensor indicates the vehicle is in a wide-open throttle condition, but the vehicle is really at idle, and the idle condition is confirmed by the signals from all other sensors. Based on the input data, the computer determines that the signal from the throttle position sensor is not rational (does not make sense when compared to the other inputs). In this case, the signal would fail the rationality test.
The CCM is supported by both “spark ignition” vehicles and
“compression ignition” vehicles. The CCM may be either a “One-Trip” or a “Two-Trip” Monitor, depending on the component.
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Onboard Diagnostics
OBD2 MONITORS
Fuel System Monitor - This Monitor uses a Fuel System
Correction program, called Fuel Trim, inside the on-board computer. Fuel Trim is a set of positive and negative values that represent adding or subtracting fuel from the engine. This program is used to correct for a lean (too much air/not enough fuel) or rich (too much fuel/not enough air) air-fuel mixture. The program is designed to add or subtract fuel, as needed, up to a certain percent. If the correction needed is too large and exceeds the time and percent allowed by the program, a fault is indicated by the computer.
The Fuel System Monitor is supported by both “spark ignition” vehicles and “compression ignition” vehicles. The Fuel System Monitor may be a
“One-Trip” or “Two-Trip” Monitor, depending on the severity of the problem.
Misfire Monitor - This Monitor continuously checks for engine misfires.
A misfire occurs when the air-fuel mixture in the cylinder does not ignite.
The misfire Monitor uses changes in crankshaft speed to sense an engine misfire. When a cylinder misfires, it no longer contributes to the speed of the engine, and engine speed decreases each time the affected cylinder(s) misfire.
The misfire Monitor is designed to sense engine speed fluctuations and determine from which cylinder(s) the misfire is coming, as well as how bad the misfire is. There are three types of engine misfires, Types 1, 2, and 3.
- Type 1 and Type 3 misfires are two-trip monitor faults. If a fault is sensed on the first trip, the computer temporarily saves the fault in its memory as a Pending Code. The MIL is not commanded on at this time. If the fault is found again on the second trip, under similar conditions of engine speed, load and temperature, the computer commands the MIL “On,” and the code is saved in its long term memory.
- Type 2 misfires are the most severe type of misfire. When a Type 2 misfire is sensed on the first trip, the computer commands the MIL to light when the misfire is sensed. If the computer determines that a
Type 2 misfire is severe , and may cause catalytic converter damage, it commands the MIL to “flash” once per second as soon as the misfire is sensed. When the misfire is no longer present, the MIL reverts to steady “On” condition.
The Misfire Monitor is supported by both “spark ignition” vehicles and
“compression ignition” vehicles.
Catalyst Monitor - The catalytic converter is a device that is installed downstream of the exhaust manifold. It helps to oxidize
(burn) the unburned fuel (hydrocarbons) and partially burned fuel
(carbon monoxide) left over from the combustion process. To accomplish this, heat and catalyst materials inside the converter react with the exhaust gases to burn the remaining fuel. Some materials inside the catalytic converter also have the ability to store oxygen, and release it as needed to oxidize hydrocarbons and carbon monoxide. In the process, it reduces vehicle emissions by converting the polluting gases into carbon dioxide and water.
The computer checks the efficiency of the catalytic converter by monitoring the oxygen sensors used by the system. One sensor is located before (upstream of) the converter; the other is located after (downstream of) the converter. If the catalytic converter loses its ability to store oxygen,
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OBD2 MONITORS
the downstream sensor signal voltage becomes almost the same as the upstream sensor signal. In this case, the monitor fails the test.
The Catalyst Monitor is supported by “spark ignition” vehicles only. The
Catalyst Monitor is a “Two-Trip” Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a
Pending Code. The computer does not command the MIL on at this time.
If the fault is sensed again on the second trip, the computer commands the MIL “On” and saves the code in its long-term memory.
Heated Catalyst Monitor - Operation of the “heated” catalytic converter is similar to the catalytic converter. The main difference is that a heater is added to bring the catalytic converter to its operating temperature more quickly. This helps reduce emissions by reducing the converter’s down time when the engine is cold. The Heated Catalyst
Monitor performs the same diagnostic tests as the catalyst Monitor, and also tests the catalytic converter’s heater for proper operation.
The Heated Catalyst Monitor is supported by “spark ignition” vehicles only. This Monitor is also a “Two-Trip” Monitor.
Exhaust Gas Recirculation (EGR) Monitor - The Exhaust Gas
Recirculation (EGR) system helps reduce the formation of
Oxides of Nitrogen during combustion. Temperatures above 2500°F cause nitrogen and oxygen to combine and form Oxides of Nitrogen in the combustion chamber. To reduce the formation of Oxides of Nitrogen, combustion temperatures must be kept below 2500°F. The EGR system recirculates small amounts of exhaust gas back into the intake manifold, where it is mixed with the incoming air/fuel mixture. This reduces combustion temperatures by up to 500°F. The computer determines when, for how long, and how much exhaust gas is recirculated back to the intake manifold. The EGR Monitor performs EGR system function tests at preset times during vehicle operation.
The EGR Monitor is supported by both “spark ignition” vehicles and
“compression ignition” vehicles. The EGR Monitor is a “Two-Trip”
Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a Pending Code. The computer does not command the MIL on at this time. If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
Evaporative System (EVAP) Monitor - OBD2 vehicles are equipped with a fuel Evaporative system (EVAP) that helps prevent fuel vapors from evaporating into the air. The EVAP system carries fumes from the fuel tank to the engine where they are burned during combustion. The EVAP system may consist of a charcoal canister, fuel tank cap, purge solenoid, vent solenoid, flow monitor, leak detector and connecting tubes, lines and hoses.
Fumes are carried from the fuel tank to the charcoal canister by hoses or tubes. The fumes are stored in the charcoal canister. The computer controls the flow of fuel vapors from the charcoal canister to the engine via a purge solenoid. The computer energizes or de-energizes the purge solenoid (depending on solenoid design). The purge solenoid opens a valve to allow engine vacuum to draw the fuel vapors from the canister
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Onboard Diagnostics
OBD2 MONITORS
into the engine where the vapors are burned. The EVAP Monitor checks for proper fuel vapor flow to the engine, and pressurizes the system to test for leaks. The computer runs this Monitor once per trip.
The EVAP Monitor is supported by “spark ignition” vehicles only. The
EVAP Monitor is a “Two-Trip” Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a Pending
Code. The computer does not command the MIL on at this time. If the fault is sensed again on the second trip, the PCM commands the MIL
“On,” and saves the code in its long-term memory.
Oxygen Sensor Heater Monitor - The Oxygen Sensor Heater
Monitor tests the operation of the oxygen sensor’s heater. There are two modes of operation on a computer-controlled vehicle: “openloop” and “closed-loop.” The vehicle operates in open-loop when the engine is cold, before it reaches normal operating temperature. The vehicle also goes to open-loop mode at other times, such as heavy load and full throttle conditions. When the vehicle is running in open-loop, the oxygen sensor signal is ignored by the computer for air/fuel mixture corrections. Engine efficiency during open-loop operation is very low, and results in the production of more vehicle emissions.
Closed-loop operation is the best condition for both vehicle emissions and vehicle operation. When the vehicle is operating in closed-loop, the computer uses the oxygen sensor signal for air/fuel mixture corrections.
In order for the computer to enter closed-loop operation, the oxygen sensor must reach a temperature of at least 600°F. The oxygen sensor heater helps the oxygen sensor reach and maintain its minimum operating temperature (600°F) more quickly, to bring the vehicle into closed-loop operation as soon as possible.
The Oxygen Sensor Heater Monitor is supported by “spark ignition” vehicles only. The Oxygen Sensor Heater Monitor is a “Two-Trip”
Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a Pending Code. The computer does not command the MIL on at this time. If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
Oxygen Sensor Monitor - The Oxygen Sensor monitors how much oxygen is in the vehicle’s exhaust. It generates a varying voltage of up to one volt, based on how much oxygen is in the exhaust gas, and sends the signal to the computer. The computer uses this signal to make corrections to the air/fuel mixture. If the exhaust gas has a large amount of oxygen (a lean air/fuel mixture), the oxygen sensor generates a “low” voltage signal. If the exhaust gas has very little oxygen (a rich mixture condition), the oxygen sensor generates a “high” voltage signal. A 450mV signal indicates the most efficient, and least polluting, air/fuel ratio of 14.7 parts of air to one part of fuel.
The oxygen sensor must reach a temperature of at least 600-650°F, and the engine must reach normal operating temperature, for the computer to enter into closed-loop operation. The oxygen sensor only functions when the computer is in closed-loop. A properly operating oxygen sensor reacts quickly to any change in oxygen content in the
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Onboard Diagnostics
OBD2 MONITORS
exhaust stream. A faulty oxygen sensor reacts slowly, or its voltage signal is weak or missing.
The Oxygen Sensor Monitor is supported by “spark ignition” vehicles only. The Oxygen Sensor Monitor is a “Two-Trip” monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a Pending Code. The computer does not command the MIL on at this time. If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
Secondary Air System Monitor - When a cold engine is first started, it runs in open-loop mode. During open-loop operation, the engine usually runs rich. A vehicle running rich wastes fuel and creates increased emissions, such as carbon monoxide and some hydrocarbons. A Secondary Air System injects air into the exhaust stream to aid catalytic converter operation:
1.
It supplies the catalytic converter with the oxygen it needs to oxidize the carbon monoxide and hydrocarbons left over from the combustion process during engine warm-up.
2.
The extra oxygen injected into the exhaust stream also helps the catalytic converter reach operating temperature more quickly during warm-up periods. The catalytic converter must heat to operating temperature to work properly.
The Secondary Air System Monitor checks for component integrity and system operation, and tests for faults in the system. The computer runs this Monitor once per trip.
The Secondary Air System Monitor is a “Two-Trip” monitor. If a fault is found on the first trip, the computer temporarily saves this fault in its memory as a Pending Code. The computer does not command the MIL on at this time. If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
Non-Methane Hydrocarbon Catalyst (NMHC) Monitor - The non-methane hydrocarbon catalyst is a type of catalytic converter.
It helps to remove non-methane hydrocarbons (NMH) left over from the combustion process from the exhaust stream. To accomplish this, heat and catalyst materials react with the exhaust gases to convert NMH to less harmful compounds. The computer checks the efficiency of the catalyst by monitoring the quantity of NMH in the exhaust stream. The monitor also verifies that sufficient temperature is present to aid in particulate matter (PM) filter regeneration.
The NMHC Monitor is supported by “compression ignition” vehicles only.
The NMHC Monitor is a “Two-Trip” Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a
Pending Code. The computer does not command the MIL on at this time.
If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
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Onboard Diagnostics
OBD2 MONITORS
NOx Aftertreatment Monitor - NOx aftertreatment is based on a catalytic converter support that has been coated with a special washcoat containing zeolites. NOx Aftertreatment is designed to reduce oxides of nitrogen emitted in the exhaust stream. The zeolite acts as a molecular "sponge" to trap the NO and NO2 molecules in the exhaust stream. In some implementations, injection of a reactant before the aftertreatment purges it. NO2 in particular is unstable, and will join with hydrocarbons to produce H2O and N2. The NOx Aftertreatment Monitor monitors the function of the NOx aftertreatment to ensure that tailpipe emissions remain within acceptable limits.
The NOx Aftertreatment Monitor is supported by “compression ignition” vehicles only. The NOx Aftertreatment Monitor is a “Two-Trip” Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a Pending Code. The computer does not command the
MIL on at this time. If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
Boost Pressure System Monitor - The boost pressure system serves to increase the pressure produced inside the intake manifold to a level greater than atmospheric pressure. This increase in pressure helps to ensure compete combustion of the air-fuel mixture.
The Boost Pressure System Monitor checks for component integrity and system operation, and tests for faults in the system. The computer runs this Monitor once per trip.
The Boost Pressure System Monitor is supported by “compression ignition” vehicles only. The Boost Pressure System Monitor is a “Two-
Trip” Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a Pending Code. The computer does not command the MIL on at this time. If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
Exhaust Gas Sensor Monitor - The exhaust gas sensor is used by a number of systems/monitors to determine the content of the exhaust stream. The computer checks for component integrity, system operation, and tests for faults in the system, as well as feedback faults that may affect other emission control systems.
The Exhaust Gas Sensor Monitor is supported by “compression ignition” vehicles only. The Exhaust Gas Sensor Monitor is a “Two-Trip” Monitor.
If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a Pending Code. The computer does not command the MIL on at this time. If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
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OBD2 MONITORS
PM Filter Monitor - The particulate matter (PM) filter removes particulate matter from the exhaust stream by filtration. The filter has a honeycomb structure similar to a catalyst substrate, but with the channels blocked at alternate ends. This forces the exhaust gas to flow through the walls between the channels, filtering the particulate matter out. The filters are self-cleaning by periodic modification of the exhaust gas concentration in order to burn off the trapped particles (oxidizing the particles to form CO2 and water). The computer monitors the efficiency of the filter in trapping particulate matter, as well as the ability of the filter to regenerate (self-clean).
The PM Filter Monitor is supported by “compression ignition” vehicles only. The PM Filter Monitor is a “Two-Trip” Monitor. If a fault is found on the first trip, the computer temporarily saves the fault in its memory as a
Pending Code. The computer does not command the MIL on at this time.
If the fault is sensed again on the second trip, the computer commands the MIL “On,” and saves the code in its long-term memory.
OBD2 Reference Table
The table below lists current OBD2 Monitors, and indicates the following for each Monitor:
A.
Monitor Type (how often does the Monitor run; Continuous or
Once per trip)
B.
Number of trips needed, with a fault present, to set a pending DTC
C.
Number of consecutive trips needed, with a fault present, to command the MIL “On” and store a DTC
D.
Number of trips needed, with no faults present, to erase a Pending
DTC
E.
Number and type of trips or drive cycles needed, with no faults present, to turn off the MIL
F.
Number of warm-up periods needed to erase the DTC from the computer’s memory after the MIL is turned off
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Onboard Diagnostics
OBD2 MONITORS
Name of
Monitor
Comprehensive
Component Monitor
Misfire Monitor
(Type 1 and 3)
Misfire Monitor
(Type 2)
Fuel System Monitor
A
Continuous
Continuous
Continuous
Continuous
Catalytic Converter
Monitor
Oxygen Sensor
Monitor
Oxygen Sensor
Heater Monitor
Exhaust Gas
Recirculation (EGR)
Monitor
Evaporative
Emissions Controls
Monitor
Secondary Air
System (AIR) Monitor
NMHC Monitor
Once per trip
Once per trip
Once per trip
Once per trip
NOx Adsorber
Monitor
Boost Pressure
System Monitor
Exhaust Gas Sensor
Monitor
PM Filter Monitor
Once per trip
Once per trip
Once per trip
Once per trip
Once per trip
Once per trip
Once per trip
B C D E F
1 2 1 3 40
80
80
1 1 or 2 1
3 - similar conditions
80
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
1 2 1 40
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Preparation for Testing
PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET
PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET
The purpose of this form is to help you gather preliminary information on your vehicle before you retrieve codes. By having a complete account of your vehicle's current problem(s), you will be able to systematically pinpoint the problem(s) by comparing your answers to the fault codes you retrieve. You can also provide this information to your mechanic to assist in diagnosis and help avoid costly and unnecessary repairs. It is important for you to complete this form to help you and/or your mechanic have a clear understanding of your vehicle's problems.
NAME:
DATE:
VIN*:
YEAR:
MAKE:
MODEL:
ENGINE SIZE:
VEHICLE MILEAGE:
*VIN: Vehicle Identification Number, found at the base of the windshield on a metallic plate, or at the driver door latch area (consult your vehicle owner's manual for location).
TRANSMISSION:
Automatic
Manual
Please check all applicable items in each category.
DESCRIBE THE PROBLEM:
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Preparation for Testing
PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET
WHEN DID YOU FIRST NOTICE THE PROBLEM:
Just Started
Started Last Week
Started Last Month
Other: m
LIST ANY REPAIRS DONE IN THE PAST SIX MONTHS:
PROBLEMS STARTING
No symptoms
Will not crank
Cranks, but will not start
Starts, but takes a long time
ENGINE QUITS OR STALLS
No symptoms
Right after starting
When shifting into gear
During steady-speed driving
IDLING CONDITIONS
No symptoms
Is too slow at all times
Is too fast
Right after vehicle comes to a stop
While idling
During acceleration
When parking
Is sometimes too fast or too slow
Is rough or uneven
Fluctuates up and down
RUNNING CONDITIONS
No symptoms
Runs rough
Lacks power
Bucks and jerks
Poor fuel economy
Hesitates or stumbles on accelerations
Backfires
Misfires or cuts out
Engine knocks, pings or rattles
Surges
Dieseling or run-on
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Preparation for Testing
PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET
AUTOMATIC TRANSMISSION PROBLEMS (if applicable)
No symptoms Vehicle does not move when in gear
Shifts too early or too late
Changes gear incorrectly
Jerks or bucks
PROBLEM OCCURS
Morning Afternoon
ENGINE TEMPERATURE WHEN PROBLEM OCCURS
Cold
Warm
Anytime
Hot
DRIVING CONDITIONS WHEN PROBLEM OCCURS
Short - less than 2 miles
2 - 10 miles
Long - more than 10 miles
Stop and go
While turning
While braking
At gear engagement
With A/C operating
With headlights on
During acceleration
Mostly driving downhill
Mostly driving uphill
Mostly driving level
Mostly driving curvy roads
Mostly driving rough roads
DRIVING HABITS
Mostly city driving
Highway
Park vehicle inside
Park vehicle outside
Drive less than 10 miles per day
Drive 10 to 50 miles per day
Drive more than 50 miles per day
GASOLINE USED
87 Octane
89 Octane
91 Octane
More than 91 Octane
WEATHER CONDITIONS WHEN PROBLEM OCCURS
32 - 55° F (0 - 13° C)
Below freezing (32° F / 0° C)
Above 55° F (13° C)
CHECK ENGINE LIGHT / DASH WARNING LIGHT
Sometimes ON Always ON Never ON
PECULIAR SMELLS
"Hot"
Sulfur ("rotten egg")
Burning rubber
STRANGE NOISES
Rattle
Knock
Gasoline
Burning oil
Electrical
Squeak
Other
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Preparation for Testing
BEFORE YOU BEGIN
BEFORE YOU BEGIN
The FixAssist Scan Tool aids in monitoring electronic- and emissions-related faults in your vehicle and retrieving fault codes related to malfunctions in these systems. Mechanical problems such as low oil level or damaged hoses, wiring or electrical connectors can cause poor engine performance and may also cause a fault code to set. Fix any known mechanical problems before performing any test. See your vehicle’s service manual or a mechanic for more information.
Check the following areas before starting any test:
Check the engine oil, power steering fluid, transmission fluid (if applicable), engine coolant and other fluids for proper levels. Top off low fluid levels if needed.
Make sure the air filter is clean and in good condition. Make sure all air filter ducts are properly connected. Check the air filter ducts for holes, rips or cracks.
Make sure all engine belts are in good condition. Check for cracked, torn, brittle, loose or missing belts.
Make sure mechanical linkages to engine sensors (throttle, gearshift position, transmission, etc.) are secure and properly connected. See your vehicle’s service manual for locations.
Check all rubber hoses (radiator) and steel hoses (vacuum/fuel) for leaks, cracks, blockage or other damage. Make sure all hoses are routed and connected properly.
Make sure all spark plugs are clean and in good condition. Check for damaged, loose, disconnected or missing spark plug wires.
Make sure the battery terminals are clean and tight. Check for corrosion or broken connections. Check for proper battery and charging system voltages.
Check all electrical wiring and harnesses for proper connection.
Make sure wire insulation is in good condition, and there are no bare wires.
Make sure the engine is mechanically sound. If needed, perform a compression check, engine vacuum check, timing check (if applicable), etc.
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Preparation for Testing
VEHICLE SERVICE MANUALS
VEHICLE SERVICE MANUALS
Always refer to the manufacturer’s service manual for your vehicle before performing any test or repair procedures. Contact your local car dealership, auto parts store or bookstore for availability of these manuals. The following companies publish valuable repair manuals:
Haynes Publications
861 Lawrence Drive
Newbury Park, California 91320
Phone: 800-442-9637
Web: www.haynes.com
Mitchell 1
14145 Danielson Street
Poway, California 92064
Phone: 888-724-6742
Web: www.m1products.com
Motor Publications
5600 Crooks Road, Suite 200
Troy, Michigan 48098
Phone: 800-426-6867
Web: www.motor.com
FACTORY SOURCES
Ford, GM, Chrysler, Honda, Isuzu, Hyundai and Subaru Service
Manuals
Helm Inc.
14310 Hamilton Avenue
Highland Park, Michigan 48203
Phone: 800-782-4356
Web: www.helminc.com
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Using the Scan Tool
CODE RETRIEVAL PROCEDURE
CODE RETRIEVAL PROCEDURE
Retrieving and using Diagnostic Trouble Codes (DTCs) for troubleshooting vehicle operation is only one part of an
overall diagnostic strategy.
Never replace a part based only on the DTC definition.
Each DTC has a set of testing procedures, instructions and flow charts that must be followed to confirm the location of the problem. This information is found in the vehicle's service manual. Always refer to the vehicle's service manual for detailed testing instructions.
Check your vehicle thoroughly before performing
any test. See BEFORE YOU BEGIN on page 32 for
details.
ALWAYS observe safety precautions whenever working on a
vehicle. See SAFETY PRECAUTIONS on page 3 for more
information.
1.
Turn the ignition off.
2.
Locate the vehicle's 16-pin Data Link
Connector (DLC). See page 5 for
connector location.
Some DLCs have a plastic cover that must be removed before connecting the Scan Tool cable connector.
If the Scan Tool is ON, turn it OFF by pressing the POWER/LINK button BEFORE connecting the
Scan Tool to the DLC.
3.
Connect the Scan Tool cable connector to the vehicle’s DLC. The cable connector is keyed and will only fit one way.
If you have problems connecting the cable connector to the DLC, rotate the connector 180° and try again.
If you still have problems, check the DLC on the vehicle and on the Scan Tool. Refer to your vehicle’s service manual to properly check the vehicle’s DLC.
4.
Turn the ignition on. DO NOT start the engine.
5.
When the Scan Tool’s cable connector is properly connected to the vehicle’s DLC, the unit automatically turns ON.
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CODE RETRIEVAL PROCEDURE
If the unit does not power on automatically when connected to the vehicle’s DLC connector, it usually indicates there is no power present at the vehicle’s DLC connector. Check your fuse panel and replace any burned-out fuses.
If replacing the fuse(s) does not correct the problem, consult your vehicle’s repair manual to identify the proper computer (PCM) fuse/circuit, and perform any necessary repairs before proceeding.
6.
Press the POWER/LINK
button.
The Scan Tool will start a check of the vehicle’s computer to determine which type of communication protocol it is using. When the Scan Tool identifies the computer’s communication protocol, a communication link is established. The protocol type used by the vehicle’s computer is shown on the display.
A PROTOCOL is a set of rules and procedures for regulating data transmission between computers, and between testing equipment and computers. As of this writing, five different types of protocols (ISO 9141, Keyword
2000, J1850 PWM, J1850 VPW and CAN) are in use by vehicle manufacturers. The Scan Tool automatically identifies the protocol type and establishes a communication link with the vehicle’s computer.
If the Scan Tool fails to link to the vehicle’s computer a “Linking
Failed” message shows on the Scan
Tool’s display.
- Verify the connection at the DLC, and verify the ignition is ON.
- Ensure your vehicle is OBD2 compliant. See VEHICLES
COVERED on page 5 for vehicle compliance verification
information.
7.
Once the computer’s communication protocol has been identified’ the Scan
Tool performs a check of the vehicle’s
VIN (Vehicle Identification Number) to determine the vehicle make and model.
- Turn the ignition OFF, wait 5 seconds, then turn back ON to reset the computer.
If the Scan Tool can decode the VIN to determine the vehicle’s make and model, a confirmation screen displays vehicle information for the vehicle under test.
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CODE RETRIEVAL PROCEDURE
- If the vehicle information shown is correct for the vehicle under test, press the ENTER button. Proceed to step 15.
- If the vehicle information shown is not correct for the vehicle under test, press the LD/M button to manually select the desired vehicle. The Select Vehicle screen displays. Proceed to step 8.If the Scan Tool cannot decode the VIN to determine the vehicle’s make and model, the Select Vehicle screen displays. Proceed to step 8.
8.
The Select Vehicle screen lists up to three vehicles from which codes were most recently retrieved.
To select a vehicle from the Scan
Tool’s memory, use the UP and
DOWN buttons, as necessary, to highlight the desired stored vehicle, then press the ENTER button.
Proceed to step 15.
To retrieve codes from a new vehicle, use the UP and DOWN buttons, as necessary, to highlight New Vehicle, then press the ENTER button. The Select
Year screen displays.
9.
Use the UP
and DOWN buttons, as necessary, to highlight the desired vehicle model year, then press the
ENTER button.
The Select Make screen displays.
10.
Use the UP
and DOWN buttons, as necessary, to highlight the desired vehicle make, then press the ENTER button.
The Select Model screen displays.
11.
Use the UP
and DOWN buttons, as necessary, to highlight the desired vehicle model, then press the ENTER
button.
The Select Engine screen displays.
12.
Use the UP
and DOWN buttons, as necessary, to highlight the desired engine size, then press the ENTER button.
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The Select Transmission screen displays.
13.
Use the UP
and DOWN buttons, as necessary, to highlight the desired transmission type, then press the
ENTER button.
A confirmation screen displays vehicle information for the vehicle under test.
14.
If the vehicle information shown is correct for the vehicle under test, press the ENTER button. Proceed to step
15.
If the vehicle information shown is not correct for the vehicle under test, press the LD/M button return to the Select
Vehicle screen displays. Repeat steps 8 through 13 to re-select the desired vehicle.
15.
After approximately 10~60 seconds, the
Scan Tool will retrieve and display any
Diagnostic Trouble Codes, Monitor
Status and Freeze Frame Data retrieved from the vehicle’s computer memory.
The Scan Tool is capable of retrieving and storing up to 32 codes in memory, for immediate or later viewing.
If a recommended solution for the
"priority" DTC is available, the Fix
Assist screen for the DTC displays.
The screen shows recommended inspection and repair actions to correct the malfunction that caused the DTC to be set.
If a recommended solution for the
“priority” DTC is not available, an advisory message displays. Press the DTC/FF the next DTC. button to scroll to
If more than one malfunction is present that causes more than one DTC to be set, Fix Assist will be displayed only for the code with the highest priority. The code designated "01" on the
Scan Tool display (see step 16 for more information) is referred to as the PRIORITY code. The priority code is also the one that has commanded the MIL on.
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CODE RETRIEVAL PROCEDURE
To view retrieved DTCs and Freeze Frame data, press the
DTC/FF
button and proceed to step 16.
16.
To read the display:
Refer to DISPLAY FUNCTIONS on page 9 for a description of
display elements.
A visible icon indicates that the Scan Tool is being powered through the vehicle’s DLC connector.
A visible icon indicates that the Scan Tool is linked to
(communicating with) the vehicle’s computer.
The I/M Monitor Status icons indicate the type and number of
Monitors the vehicle supports, and provides indications of the current status of the vehicle’s Monitors. A solid Monitor icon indicates the associated Monitor has run and completed its testing. A blinking Monitor icon indicates the associated Monitor
has not run and completed its testing.
The upper right hand corner of the display shows the number of the code currently being displayed, the total number of codes retrieved, and whether or not the displayed code commanded the MIL on. If the code being displayed is a PENDING code, the PENDING icon is shown. If the code being displayed is a
PERMANENT code, the PERMANENT icon is shown.
The Diagnostic Trouble Code (DTC) and related code definition are shown in the lower section of the display.
In the case of long code definitions, a small arrow is shown in the upper/lower right-hand corner of the Scan Tool display area to indicate the presence of additional information. Use the and
buttons, as necessary, to view the additional information.
If a definition for the currently displayed code is not available, an advisory message shows on the Scan Tool’s display.
The Scan Tool will display a code only if codes are present in the vehicle’s computer memory. If no codes are present, the message “No
Powertrain DTCs or Freeze Frame
Data presently stored in the vehicle’s computer. Press the DTC button to view your Enhanced
DTC’s display. Press the DTC/FF
button to enter the “enhanced” mode (see THE
17.
Read and interpret Diagnostic Trouble Codes/system condition using the display and the green, yellow and red LEDs.
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The green, yellow and red LEDs are used (with the display) as visual aids to make it easier to determine engine system conditions.
Green LED – Indicates that all engine systems are “OK” and operating normally. All monitors supported by the vehicle have run and performed their diagnostic testing, and no trouble codes are present. All Monitor icons will be solid.
Yellow LED – Indicates one of the following conditions:
A. A PENDING CODE IS PRESENT –
If the yellow LED is illuminated, it may indicate a Pending code is present. Check the Scan Tool’s display for confirmation. A Pending code is confirmed by the presence of a numeric code and the word
PENDING on the Scan Tool’s display.
B. MONITOR NOT RUN STATUS – If the Scan Tool’s display shows a zero (indicating there are no DTC’s present in the vehicle’s computer memory), but the yellow LED is illuminated, it may be an indication that some of the Monitors supported by the vehicle have not yet run and completed their diagnostic testing. Check the Scan Tool’s display for confirmation. All Monitor icons that are blinking have not yet run and completed their diagnostic testing; all Monitor icons that are solid have run and completed their diagnostic testing.
Red LED – Indicates there is a problem with one or more of the vehicle’s systems. The red LED is also used to indicate that DTC(s) are present (displayed on the Scan
Tool’s screen). In this case, the
Malfunction Indicator (Check Engine) lamp on the vehicle’s instrument panel will be illuminated.
DTC’s that start with “P0”, “P2” and some “P3” are considered
Generic (Universal). All Generic DTC definitions are the same on all OBD2 equipped vehicles.
DTC’s that start with “P1” and some “P3” are Manufacturer specific codes and their code definitions vary with each vehicle manufacturer.
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Using the Scan Tool
CODE RETRIEVAL PROCEDURE
If the definition for the currently displayed code is not available, an advisory message shows on the
Scan Tool’s LCD display.
18.
If more than one DTC was retrieved, and to view Freeze Frame Data, press and release the DTC/FF necessary.
button, as
Each time the DTC/FF button is pressed and released, the
Scan Tool will scroll and display the next DTC in sequence until all DTCs in its memory have displayed.
Freeze Frame Data (if available) will display after DTC #1.
Whenever the Scroll function is used to view additional
DTCs and Freeze Frame Data, the Scan Tool's communication link with the vehicle's computer disconnects. To re-establish communication, press the
POWER/LINK button again.
In OBD2 systems, when an emissions-related engine malfunction occurs that causes a DTC to set, a record or snapshot of engine conditions at the time that the malfunction occurred is also saved in the vehicle’s computer memory. The record saved is called Freeze Frame data. Saved engine conditions include, but are not limited to: engine speed, open or closed loop operation, fuel system commands, coolant temperature, calculated load value, fuel pressure, vehicle speed, air flow rate, and intake manifold pressure.
If more than one malfunction is present that causes more than one DTC to be set, only the code with the highest priority will contain Freeze Frame data. The code designated “01” on the
Scan Tool display is referred to as the PRIORITY code, and
Freeze Frame data always refers to this code. The priority code is also the one that has commanded the MIL on.
Retrieved information can be uploaded to a Personal Computer
(PC) with the use of optional software (see instructions included with the software for more information).
19.
When the last retrieved DTC has been displayed and the DTC/FF
button is pressed, the Scan Tool enters the “enhanced” mode.
See THE ENHANCED MENU on page 41 for more information.
If you do not wish to view enhanced DTCs, press the LD/M button to return to the OBD2 DTC screen.
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THE ENHANCED MENU
If the vehicle make selected during linking was not
Chrysler/Jeep, Ford/Mazda, GM/Isuzu, Honda/Acura, or
Toyota/Lexus, pressing the DTC/FF button after display of the last retrieved DTC returns the screen to the
first retrieved DTC (the Enhanced DTC menu is not displayed).
20.
Determine engine system(s) condition by viewing the Scan Tool’s display for any retrieved Diagnostic Trouble Codes, code definitions,
Freeze Frame data and Live Data, interpreting the green, yellow and red LEDs, and reviewing Fix Assist data (when supplied).
If DTC’s were retrieved and you are going to perform the repairs yourself, proceed by consulting the Vehicle’s Service Repair
Manual for testing instructions, testing procedures, and flow charts related to retrieved code(s).
If you plan to take the vehicle to a professional to have it
serviced, complete the PRELIMINARY VEHICLE DIAGNOSTIC
WORKSHEET on page 29 and take it together with the retrieved
codes, freeze frame data and LED information to aid in the troubleshooting procedure.
To prolong battery life, the Scan Tool automatically shuts “Off” approximately three minutes after it is disconnected from the vehicle. The DTCs retrieved, captured Live Data Information,
Monitor Status and Freeze Frame data (if any) will remain in the
Scan Tool’s memory, and may be viewed at any time by turning the unit “On”. If the Scan Tool’s batteries are removed, or if the
Scan Tool is re-linked to a vehicle to retrieve codes/data, any prior codes/data in its memory are automatically cleared.
THE ENHANCED MENU
Following the code retrieval procedure (see CODE RETRIEVAL
PROCEDURE on page 34), when the last retrieved DTC has been
displayed and the DTC/FF button is pressed, the Scan Tool enters the
“enhanced” mode. The “enhanced” mode provides the ability to retrieve
enhanced DTCs from most Chrysler/Jeep, Ford/Mazda, GM/Isuzu,
Honda/Acura and Toyota/Lexus vehicles. The types of enhanced data available depends on the vehicle make.
You can also retrieve Anti-Lock Brake System (ABS) DTCs and access
Fix Assist.
To view Enhanced DTCs: Select
Enhanced DTCs from the Enhanced Menu.
Refer to VIEWING ENHANCED DTCs on page 42 to view enhanced DTCs for your
vehicle.
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Using the Scan Tool
VIEWING ENHANCED DTCs
To view ABS DTCs: Select ABS DTCs from the Enhanced Menu. Refer to
VIEWING ABS DTCs on page 50 to view
ABS DTCs for your vehicle.
The Scan Tool includes a Secure
Digital (SD) memory card that contains code definitions and the
FixAssist database (refer to
Installing the Secure Digital (SD)
information). If the SD card is not installed, or is damaged, it may be necessary to select the manufacturer for the vehicle under test when retrieving Enhanced or ABS
DTCs.
To exit the Enhanced Menu: Press the LD/M
DTC screen shows the first code retrieved.
button. The OBD2
VIEWING ENHANCED DTCs
Refer to the appropriate paragraph to view enhanced data for your vehicle:
Chrysler/Jeep Enhanced DTCs
When View Enhanced DTCs is selected from the Enhanced Menu (and a Chrysler/Jeep vehicle was selected during linking, if prompted), the
Chrysler/Jeep Enhanced menu displays. You may view either “Engine
DTCs” or “Transmission DTCs.”
If the vehicle under test does not support Enhanced DTCs, an advisory message shows on the
Scan Tool’s display. Press the
LD/M button to return to the
Enhanced Menu.
1.
Use the UP
and DOWN buttons, as necessary, to highlight the desired option, then press the ENTER
button.
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VIEWING ENHANCED DTCs
Transmission DTCs are not supported on most Chrysler/Jeep vehicles manufactured prior to 2002.
A “One moment please” message displays while the Scan Tool retrieves the selected DTCs.
If the Scan Tool fails to link to the vehicle’s computer, the message
“Unable to establish a link with the vehicle. Verify the ignition is ON.” shows on the Scan Tool’s display.
2.
To read the display:
Refer to DISPLAY FUNCTIONS on page 9 for a description of
LCD display elements.
A visible icon indicates that the Scan Tool is being powered through the vehicle’s DLC connector.
The upper right hand corner of the display shows the number of the code currently being displayed, the total number of codes retrieved.
The Diagnostic Trouble Code (DTC) and related code definition are shown in the lower section of the LCD display.
I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.
In the case of long code definitions, or when viewing
Freeze Frame data, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use the and buttons, as necessary, to view the additional information.
The Scan Tool will display a code only if codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced DTC’s are presently stored in the vehicle’s computer” is displayed. Press the
LD/M button to return to the
Chrysler/Jeep Enhanced menu.
3.
If more than one code was retrieved press the DTC/FF
button, as necessary, to display additional codes one at a time.
Whenever the Scroll function is used to view additional codes, the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the
POWER/LINK
button again.
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Using the Scan Tool
VIEWING ENHANCED DTCs
4.
When the last retrieved DTC has been displayed and the DTC/FF
button is pressed, the Scan Tool returns to the first DTC. Press the LD/M button to return to the Chrysler/Jeep Enhanced menu.
To view additional enhanced DTCs, repeat steps 1 through 4, above.
button to return to the Enhanced Menu.
Ford/Mazda Enhanced DTCs
Mazda Enhanced DTCs are available for Mazda-branded
Ford vehicles only.
When View Enhanced DTCs is selected from the Enhanced Menu (and a Ford/Mazda vehicle was selected during linking, if prompted), the
Ford/Mazda Enhanced menu displays. You may view DTCs for either the “Continuous Memory Test”, “KOEO (Key On Engine Off) Test” or
“KOER (Key On Engine Running) Test.”
If the vehicle under test does not support Enhanced DTCs, an advisory message shows on the
Scan Tool’s display. Press the
LD/M button to return to the
Enhanced Menu.
1.
Use the UP
and DOWN buttons, as necessary, to highlight the desired option, then press the ENTER button.
When choosing to view KOER
Test DTCs, start the vehicle’s engine before making your selection.
If the KOER Test was selected, and the vehicle’s engine is not running, an advisory message shows on the
Scan Tool’s display.
- Press the LD/M button to return to the Ford/Mazda Enhanced menu.
2.
An “instructional” message shows on the Scan Tool’s display. Perform test procedures as appropriate.
If the Continuous Memory or KOEO test was selected, turn the ignition
OFF, then back ON. Press the
ENTER button to start the test.
- A “One moment please” message displays while the test is in progress.
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If the KOER test was selected, press the ENTER button to continue.
- A “One moment please” message displays while the test is in progress.
- Turn the steering wheel to the right, then release.
- Press and release the brake pedal.
- Cycle the overdrive switch (if equipped).
If the Scan Tool fails to link to the vehicle’s computer, the message
“Unable to establish a link with the vehicle. Verify the ignition is ON.” shows on the Scan Tool’s display.
3.
To read the display:
Refer to DISPLAY FUNCTIONS on page 9 for a description of
LCD display elements.
A visible icon indicates that the Scan Tool is being powered through the vehicle’s DLC connector.
The upper right hand corner of the display shows the number of the code currently being displayed, the total number of codes retrieved.
The Diagnostic Trouble Code (DTC) and related code definition are shown in the lower section of the LCD display.
I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.
In the case of long code definitions, or when viewing
Freeze Frame data, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use the and buttons, as necessary, to view the additional information.
The Scan Tool will display a code only if codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced
DTC’s are presently stored in the tool’s memory” is displayed. Press the LD/M button to return to the
Ford/Mazda Enhanced menu.
4.
If more than one code was retrieved press the DTC/FF
button, as necessary, to display additional codes one at a time.
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Using the Scan Tool
VIEWING ENHANCED DTCs
Whenever the Scroll function is used to view additional codes, the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the
POWER/LINK
button again.
5.
When the last retrieved DTC has been displayed and the DTC/FF
button is pressed, the Scan Tool returns to the first DTC. Press the LD/M button to return to the Ford/Mazda Enhanced menu.
To view additional enhanced DTCs, repeat steps 1 through 5, above.
button to return to the Enhanced Menu.
General Motors/Isuzu Enhanced DTCs
When View Enhanced DTCs is selected from the Enhanced Main
Menu (and a General Motors/Isuzu vehicle was selected during linking, if prompted), the GM/Isuzu Enhanced menu displays. You may view the
“MIL DTCs”, “Current DTCs”, “Fail Since Clear DTCs” or “History DTCs.”
If the vehicle under test does not support Enhanced DTCs, an advisory message shows on the
Scan Tool’s display. Press the
LD/M button to return to the
Enhanced Menu.
1.
Use the UP
and DOWN buttons, as necessary, to highlight the desired option, then press the ENTER button.
A “One moment please” message displays while the Scan Tool retrieves the selected DTCs.
If the Scan Tool fails to link to the vehicle’s computer, the message
“Unable to establish a link with the vehicle. Verify the ignition is ON.” shows on the Scan Tool’s display.
2.
To read the display:
Refer to DISPLAY FUNCTIONS on page 9 for a description of LCD
display elements.
A visible icon indicates that the
Scan Tool is being powered through the vehicle’s DLC connector.
The upper right hand corner of the display shows the number of the code currently being displayed, the total number of codes retrieved.
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VIEWING ENHANCED DTCs
The Diagnostic Trouble Code (DTC) and related code definition are shown in the lower section of the LCD display.
I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.
In the case of long code definitions, or when viewing
Freeze Frame data, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use the and buttons, as necessary, to view the additional information.
The Scan Tool will display a code only if codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced
DTC’s are presently stored in the tool’s memory” is displayed. Press the DTC/FF button to return to the GM Enhanced menu.
3.
If more than one code was retrieved press the DTC/FF
button, as necessary, to display additional codes one at a time.
Whenever the Scroll function is used to view additional codes, the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the
POWER/LINK button again.
4.
When the last retrieved DTC has been displayed and the DTC/FF
button is pressed, the Scan Tool returns to the first DTC. Press the LD/M button to return to the GM/Isuzu Enhanced menu.
To view additional enhanced DTCs, repeat steps 1 through 4, above.
button to return to the Enhanced Menu.
Honda/Acura Enhanced DTCs
When View Enhanced DTCs is selected from the Enhanced Main Menu (and a
Honda/Acura vehicle was selected during linking, if prompted), the Honda Acura
Enhanced menu displays. Depending on the protocol used to communicate with your vehicle, the Honda/Acura Enhanced menu provides options to view:
Permanent DTCs or Temporary DTCs
Confirmed DTCs or Pending DTCs
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Using the Scan Tool
VIEWING ENHANCED DTCs
If the vehicle under test does not support Enhanced DTCs, an advisory message shows on the
Scan Tool’s display. Press the
LD/M button to return to the
Enhanced Menu.
1.
Use the UP
and DOWN buttons, as necessary, to highlight the desired option, then press the ENTER button.
A “One moment please” message displays while the Scan Tool retrieves the selected DTCs.
If the Scan Tool fails to link to the vehicle’s computer, the message
“Unable to establish a link with the vehicle. Verify the ignition is ON.” shows on the Scan Tool’s display.
2.
To read the display:
Refer to DISPLAY FUNCTIONS on page 9 for a description of
LCD display elements.
A visible icon indicates that the Scan Tool is being powered through the vehicle’s DLC connector.
The upper right hand corner of the display shows the number of the code currently being displayed, the total number of codes retrieved.
The Diagnostic Trouble Code (DTC) and related code definition are shown in the lower section of the
LCD display.
I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.
In the case of long code definitions, or when viewing
Freeze Frame data, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use the and buttons, as necessary, to view the additional information.
The Scan Tool will display a code only if codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced DTC’s are presently stored in the vehicle’s computer” is displayed. Press the
LD/M button to return to the
Honda/Acura Enhanced menu.
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VIEWING ENHANCED DTCs
3.
If more than one code was retrieved press the DTC/FF
button, as necessary, to display additional codes one at a time.
Whenever the Scroll function is used to view additional codes, the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the
POWER/LINK
button again.
4.
When the last retrieved DTC has been displayed and the DTC/FF
button is pressed, the Scan Tool returns to the first DTC. Press the LD/M button to return to the Honda/Acura Enhanced menu.
To view additional enhanced DTCs, repeat steps 1 through 4, above.
button to return to the Enhanced Menu.
Toyota/Lexus Enhanced DTCs
When View Enhanced DTCs is selected from the Enhanced Main Menu (and a
Toyota/Lexus vehicle was selected during linking, if prompted), the Toyota/Lexus
Enhanced menu displays. Depending on the protocol used to communicate with your vehicle, the Toyota/Lexus Enhanced menu provides options to view:
Current DTCs, History DTCs or Pending
DTCs
Current DTCs, Historical DTCs or
Readiness DTCs
If the vehicle under test does not support Enhanced DTCs, an advisory message shows on the
Scan Tool’s display. Press the
LD/M button to return to the
Enhanced Menu.
1.
Use the UP
and DOWN buttons, as necessary, to highlight the desired option, then press the ENTER button.
A “One moment please” message displays, while the Scan Tool retrieves the selected DTCs.
If the Scan Tool fails to link to the vehicle’s computer, the message
“Unable to establish a link with the vehicle. Verify the ignition is ON.” shows on the Scan Tool’s display.
2.
To read the display:
Refer to DISPLAY FUNCTIONS on page 9 for a description of
LCD display elements.
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Using the Scan Tool
VIEWING ABS DTCs
A visible icon indicates that the Scan Tool is being powered through the vehicle’s DLC connector.
The upper right hand corner of the display shows the number of the code currently being displayed, the total number of codes retrieved.
The Diagnostic Trouble Code (DTC) and related code definition are shown in the lower section of the LCD display.
I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.
In the case of long code definitions, or when viewing
Freeze Frame data, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use the and buttons, as necessary, to view the additional information.
The Scan Tool will display a code only if codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced
DTC’s are presently stored in the tool’s memory” is displayed. Press the LD/M button to return to the
Toyota/Lexus Enhanced menu.
3.
If more than one code was retrieved press the DTC/FF
button, as necessary, to display additional codes one at a time.
Whenever the Scroll function is used to view additional codes, the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the
POWER/LINK
button again.
4.
When the last retrieved DTC has been displayed and the DTC/FF
button is pressed, the Scan Tool returns to the first DTC. Press the LD/M button to return to the Toyota/Lexus Enhanced menu.
To view additional enhanced DTCs, repeat steps 1 through 4, above.
button to return to the Enhanced Menu.
VIEWING ABS DTCs
Refer to Vehicle Applications - ABS on page 91 for vehicles
covered.
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VIEWING ABS DTCs
Reading ABS DTCs
1.
When View ABS DTCs is selected from the Enhanced Main Menu, The Scan
Tool starts a check of the vehicle’s computer to determine which type of communication protocol it is using.
2.
A "One moment please" message displays while the Scan Tool retrieves the selected DTCs.
If the Scan Tool fails to link to the vehicle’s computer, the message
“Unable to establish a link with the vehicle. Verify the ignition is ON.” shows on the Scan Tool’s display.
If the vehicle does not support ABS communication, an advisory message shows on the Scan Tool’s display.
Press the LD/M button to return to the Enhanced Main Menu.
If a recommended solution for the
"priority" DTC is available, the Fix
Assist screen for the DTC displays.
The screen shows recommended inspection and repair actions to correct the malfunction that caused the DTC to be set.
If more than one malfunction is present that causes more than one DTC to be set ,Fix Assist will be displayed only for the code with the highest priority. The code designated "01" on the
Scan Tool display (see step 3 for more information) is referred to as the PRIORITY code.
Fix Assist is available for "current" DTCs only. Fix Assist is not available for "history" DTCs.
To view retrieved DTCs, press the DTC/FF proceed to step 3.
button and
To view additional information related to the recommended solution, press the ENTER button.
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Using the Scan Tool
VIEWING ABS DTCs
the button is pressed from the Fix Assist screen, or when a recommended solution is not available for the
"priority" code, an information screen displays. The screen lists additional sources for obtaining a recommended solution and related data for the priority code.
- To view retrieved DTCs, press the DTC/FF proceed to step 3.
3.
To read the display:
button and
Refer to DISPLAY FUNCTIONS on page 9 for a description of
LCD display elements.
A visible icon indicates that the
Scan Tool is being powered through the vehicle’s DLC connector.
A visible icon indicates that the
Scan Tool is linked to (communicating with) the vehicle’s computer.
The upper right hand corner of the display shows the number of the code currently being displayed, the total number of codes retrieved.
The Diagnostic Trouble Code (DTC) and related code definition are shown in the lower section of the LCD display.
I/M MONITOR STATUS icons are not displayed when viewing
ABS DTCs.
In the case of long code definitions, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use the UP and DOWN buttons, as necessary, to view the additional information.
The Scan Tool will display a code only if codes are present in the vehicle’s computer memory. If no codes are present, a "No ABS DTC’s are presently stored in the tool’s memory" is displayed. Press the LD/M button to return to the Test
Modes Menu.
4.
If more than one code was retrieved press the DTC/FF
button, as necessary, to display additional codes one at a time.
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Using the Scan Tool
VIEWING ABS DTCs
Whenever the Scroll function is used to view additional codes, the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the
POWER/LINK button again.
5.
When the last retrieved DTC has been displayed and the DTC/FF button is pressed, the Scan Tool returns to the ABS Menu.
To exit the ABS mode, press the LD/M
Tool returns to the Enhanced Main Menu.
button. The Scan
Erasing ABS DTCs
If you plan to take the vehicle to a Service Center for repair, DO NOT erase the ABS DTCs from the vehicle’s computer. If the codes are erased, valuable information that might help the technician troubleshoot the problem will be erased.
1.
With the Scan Tool in ”ABS Mode” (see Reading ABS DTCs on page 51 for details), press the ERASE
button.
2.
A confirmation message shows on the
LCD display.
If you are sure you want to proceed, press the ERASE button to erase the ABS DTCs from the vehicle’s computer.
If you do not want to continue with the erase process, press the LD/M button to exit the erase mode.
3.
If you chose to erase ABS DTCs, a progress screen displays while the erase function is in progress.
If the erase was successful, a confirmation message shows on the
LCD display. Press the POWER/
LINK button to return to view the current ABS DTCs.
If the erase was not successful, an advisory message shows on the LCD display. Verify that the Scan Tool is properly connected to the vehicle’s
DLC and that the ignition is on, then repeat steps 2 and 3, above.
Erasing ABS DTCs does not fix the problem(s) that caused the code(s) to be set. If proper repairs to correct the problem(s) that caused the code(s) to be set are not made, the code(s) will appear again as soon as the vehicle is driven long enough for the problem to recur.
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Using the Scan Tool
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
When the Scan Tool’s ERASE function is used to erase
DTCs from the vehicle's on-board computer, "Freeze
Frame" data and manufacturer-specific enhanced data are also erased.
If you plan to take the vehicle to a Service Center for repair, DO NOT erase the codes from the vehicle's computer. If the codes are erased, valuable information that might help the technician troubleshoot the problem will also be erased.
Erase DTCs from the computer's memory as follows:
When DTCs are erased from the vehicle's computer memory, the I/M Readiness Monitor Status program resets the status of all Monitors to a not run "flashing" condition. To set all of the
Monitors to a DONE status, an OBD2 Drive Cycle must be performed. Refer to your vehicle's service manual for information on how to perform an OBD2 Drive Cycle for the vehicle under test.
The Scan Tool must be connected to the vehicle’s DLC to erase the codes from the computer’s memory.
If you press the ERASE button when the Scan Tool is not connected to the vehicle’s DLC, the erase instruction screen displays.
1.
If not connected already, connect the Scan Tool to the vehicle's DLC, and turn the ignition "On.” (If the Scan Tool is already connected and linked to the vehicle's computer, proceed directly to step 4. If not, continue to step 2.)
2.
Perform the Code Retrieval procedure
(see CODE RETRIEVAL PROCEDURE on page 34). Wait until the codes are
displayed on the Scan Tool's display.
To erase OBD2 DTCs, proceed to step 4.
To erase "enhanced" DTCs, proceed to step 3.
3.
Press the DTC/FF
button, as necessary, until all OBD2 codes have been shown and the Enhanced Main
Menu displays. Use the UP and
DOWN buttons, as necessary, to highlight View Enhanced
DTCs, then press the ENTER button.
Perform the appropriate Code Retrieval procedure (see
VIEWING ENHANCED DTCs on page 42). Wait until the codes
are displayed on the Scan Tool's display.
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I/M READINESS TESTING
Proceed to step 4.
4.
Press and release the ERASE
button. A confirmation message shows on the display.
To erase OBD2 DTCs:
- If you are sure you want to proceed, press the ERASE button to erase DTCs from the vehicle's computer.
- If you do not want to continue with the erase process, press the LD/M erase mode.
button to exit the
To erase "enhanced" DTCs:
- If you are sure you want to proceed, press the ERASE button to erase DTCs from the vehicle's computer.
- If you do not want to continue with the erase process, press the LD/M erase mode.
button to exit the
5.
If you chose to erase DTCs, a progress screen displays while the erase function is in progress.
If the erase was successful, a confirmation message shows on the display. Press the POWER/LINK
button to return to the DTC screen.
If the erase was not successful, an advisory message shows on the display. Verify that the Scan Tool is properly connected to the vehicle’s
DLC and that the ignition is on, then repeat steps 2 and 3, above.
Erasing DTCs does not fix the problem(s) that caused the code(s) to be set. If proper repairs to correct the problem that caused the code(s) to be set are not made, the code(s) will appear again (and the check engine light will illuminate) as soon as the vehicle is driven long enough for its Monitors to complete their testing.
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Using the Scan Tool
I/M READINESS TESTING
I/M READINESS TESTING
I/M is an Inspection and Maintenance program legislated by the
Government to meet federal clean-air standards.
The program requires that a vehicle be taken periodically to an
Emissions Station for an "Emissions Test" or "Smog Check,” where the emissions-related components and systems are inspected and tested for proper operation. Emissions Tests are generally performed once a year, or once every two years.
On OBD2 systems, the I/M program is enhanced by requiring vehicles to meet stricter test standards. One of the tests instituted by the Federal
Government is called I/M 240. On I/M 240, the vehicle under test is driven under different speeds and load conditions on a dynamometer for
240 seconds, while the vehicle's emissions are measured.
Emissions tests vary depending on the geographic or regional area in which the vehicle is registered. If the vehicle is registered in a highly urbanized area, the I/M 240 is probably the type of test required. If the vehicle is registered in a rural area, the stricter “dynamometer type” test may not be required.
I/M Readiness Monitors
I/M Readiness shows whether the various emissions-related systems on the vehicle are operating properly and are ready for Inspection and
Maintenance testing.
State and Federal Governments enacted Regulations, Procedures and
Emission Standards to ensure that all emissions-related components and systems are continuously or periodically monitored, tested and diagnosed whenever the vehicle is in operation. It also requires vehicle manufacturers to automatically detect and report any problems or faults that may increase the vehicle's emissions to an unacceptable level.
The vehicle's emissions control system consists of several components or sub-systems (Oxygen Sensor, Catalytic Converter, EGR, Fuel
System, etc.) that aid in reducing vehicle emissions.
To have an efficient Vehicle Emission Control System, all the emissionsrelated components and systems must work correctly whenever the vehicle is in operation.
To comply with State and Federal Government regulations, vehicle manufacturers designed a series of special computer programs called
"Monitors" that are programmed into the vehicle's computer. Each of these
Monitors is specifically designed to run tests and diagnostics on a specific emissions-related component or system (Oxygen Sensor, Catalytic
Converter, EGR Valve, Fuel System, etc.) to ensure their proper operation.
Currently, there are a maximum of eleven Monitors available for use.
Each Monitor has a specific function to test and diagnose only its designated emissions-related component or system. The names of the Monitors (Oxygen Sensor Monitor, Catalyst
Monitor, EGR Monitor, Misfire Monitor, etc.) describe which component or system each Monitor is designed to test and diagnose.
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Using the Scan Tool
I/M READINESS TESTING
Emissions Inspection and Maintenance (I/M) Readiness
Monitor Status Information
I/M Readiness Monitor Status shows which of the vehicle's Monitors have run and completed their diagnosis and testing, and which ones have not yet run and completed testing and diagnosis of their designated sections of the vehicle's emissions system.
If a Monitor was able to meet all the conditions required to enable it to perform the self-diagnosis and testing of its assigned engine system, it means the monitor "HAS RUN.”
If a Monitor has not yet met all the conditions required for it to perform the self-diagnosis and testing of its assigned engine system; it means the Monitor "HAS NOT RUN.”
The Monitor Run/Not Run status does not show whether or not a problem exists in a system. Monitor status only indicates whether a particular Monitor has or has not run and performed the self-diagnosis and testing of its associated system.
Performing I/M Readiness Quick Check
When a vehicle first comes from the factory, all Monitors indicate a “HAVE RUN” status. This indicates that all Monitors have run and completed their diagnostic testing. The “HAVE
RUN” status remains in the computer's memory, unless the
Diagnostic Trouble Codes are erased or the vehicle's computer memory is cleared.
The Scan Tool allows you to retrieve Monitor/System Status Information to help you determine if the vehicle is ready for an Emissions Test
(Smog Check). In addition to retrieving Diagnostic Trouble Codes, the
Scan Tool also retrieves Monitor Run/Not Run status. This information is very important since different areas of the state/country have different emissions laws and regulations concerning Monitor Run/Not Run status.
Before an Emissions Test (Smog Check) can be performed, your vehicle must meet certain rules, requirements and procedures legislated by the Federal and state (country) governments where you live.
1.
In most areas, one of the requirements that must be met before a vehicle is allowed to be Emissions Tested (Smog Checked) is that the vehicle does not have any Diagnostic Trouble Codes present
(with the exception of PENDING Diagnostic Trouble Codes).
2.
In addition to the requirement that no Diagnostic Trouble Codes be present, some areas also require that all the Monitors that a particular vehicle supports indicate a "Has Run" status condition before an Emissions Check may be performed.
3.
Other areas may only require that some (but not all) Monitors indicate a "Has Run" status before an Emissions Test (Smog Check) may be performed.
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Using the Scan Tool
I/M READINESS TESTING
Monitors with a "Has Run" status indicate that all the required conditions they needed to perform diagnosis and testing of their assigned engine area (system) have been met, and all diagnostic testing has completed successfully.
Monitors with a "Has Not Run" status have not yet met the conditions they need to perform diagnosis and testing of their assigned engine area (system), and have not been
able to perform diagnostic testing on that system.
The green, yellow and red LEDs provide a quick way to help you determine if a vehicle is ready for an Emissions Test (Smog Check).
Follow the instructions below to perform the Quick Check.
Perform the CODE RETRIEVAL PROCEDURE as described on page
34, then interpret the LED indications as follows:
Interpreting I/M Readiness Test Results
1.
GREEN LED - Indicates that all engine systems are "OK" and operating normally (all Monitors supported by the vehicle have run and performed their self-diagnostic testing). The vehicle is ready for an Emissions Test (Smog
Check), and there is a good possibility that it can be certified.
2.
YELLOW LED - Determine from the CODE RETRIEVAL
PROCEDURE (page 34) which of the two possible conditions is
causing the yellow LED to light.
If a "PENDING" Diagnostic Trouble
Code is causing the yellow LED to light, it is possible that the vehicle will be allowed to be tested for emissions and certified. Currently, most areas (states / countries) will allow an Emissions Test (Smog
Check) to be performed if the only code in the vehicle's computer is a
"PENDING" Diagnostic Trouble
Code.
If the illumination of the Yellow LED is being caused by monitors that
“have not run” their diagnostic testing, then the issue of the vehicle being ready for an Emissions Test
(Smog Check) depends on the emissions regulations and laws of your local area.
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I/M READINESS TESTING
- Some areas require that all Monitors indicate a "Has Run" status before they allow an Emissions Test (Smog Check) to be performed. Other areas only require that some, but not all,
Monitors have run their self-diagnostic testing before an
Emissions Test (Smog Check) may be performed.
- From the code retrieval procedure, determine the status of each Monitor (a solid Monitor icon shows Monitor "Has Run" status, a flashing Monitor icon indicates "Has Not Run" status).
Take this information to an emissions professional to determine (based on your test results) if your vehicle is ready for an Emissions Test (Smog Check).
3.
RED LED - Indicates there is a problem with one or more of the vehicle's systems. A vehicle displaying a red LED is definitely not ready for an Emissions
Test (Smog Check). The red LED is also an indication that there are
Diagnostic Trouble Code(s) present
(displayed on the Scan Tool's screen).
The Malfunction Indicator (Check
Engine) Lamp on the vehicle's instrument panel will light steady. The problem that is causing the red LED to light must be repaired before an Emissions Test (Smog
Check) can be performed. It is also suggested that the vehicle be inspected/repaired before driving the vehicle further.
If the Red LED was obtained, there is a definite problem present in the system(s). In these cases, you have the following options.
Repair the vehicle yourself. If you are going to perform the repairs yourself, proceed by reading the vehicle service manual and following all its procedures and recommendations.
Take the vehicle to a professional to have it serviced. The problem(s) causing the red LED to light must be repaired before the vehicle is ready for an Emissions Test (Smog Check).
Using the I/M Readiness Monitor Status to Confirm a Repair
The I/M Readiness Monitor Status function can be used (after repair of a fault has been performed) to confirm that the repair has been performed correctly, and/or to check for Monitor Run Status. Use the following procedure to determine I/M Readiness Monitor Status:
1.
Using retrieved Diagnostic Trouble Codes (DTCs) and code definitions as a guide, and following manufacturer's repair procedures, repair the fault or faults as instructed.
2.
After the fault or faults have been repaired, connect the Scan Tool to the vehicle's DLC and erase the code or codes from the vehicle's computer memory.
See page 54 for procedures for ERASING DIAGNOSTIC
TROUBLE CODES (DTCs) from the vehicle's on-board
computer.
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Using the Scan Tool
I/M READINESS TESTING
Write the codes down on a piece of paper for reference before erasing.
3.
After the erase procedure is performed, most of the Monitor icons on the Scan Tool’s display will be flashing. Leave the Scan Tool connected to the vehicle, and perform a Trip Drive Cycle for each
"flashing" Monitor:
Misfire, Fuel and Comprehensive Component Monitors run continuously and their icons will always be on solid, even after the erase function is performed.
Each DTC is associated with a specific Monitor. Consult the vehicle's service manual to identify the Monitor (or Monitors) associated with the faults that were repaired. Follow the manufacturer's procedures to perform a Trip Drive Cycle for the appropriate Monitors.
If the vehicle needs to be driven in order to perform a Trip
Drive Cycle, ALWAYS have a second person help you.
One person should drive the vehicle while the other person observes the Monitor icons on the Scan Tool for
Monitor RUN status. Trying to drive and observe the Scan
Tool at the same time is dangerous, and could cause a serious traffic accident.
4.
When a Monitor's Trip Drive Cycle is performed properly, the Monitor icon on the Scan Tool’s display changes from "flashing" to "solid,” indicating that the Monitor has run and finished its diagnostic testing.
While observing the Monitor icons on the Scan Tool’s display, perform a Trip Drive Cycle for the appropriate Monitor or
Monitors.
If, after the Monitor has run, the MIL on the vehicle's dash is not lit, and no stored or pending codes associated with that particular Monitor are present in the vehicle's computer, the repair was successful.
If, after the Monitor has run, the MIL on the vehicle's dash lights and/or a DTC associated with that Monitor is present in the vehicle's computer, the repair was unsuccessful. Refer to the vehicle's service manual and recheck repair procedures.
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Live Data Mode
VIEWING LIVE DATA
The OBD2 Scan Tool is a special diagnostic tool that communicates with the vehicle's computer. The Scan Tool lets you view and/or
"capture" (record) "real-time" Live Data. This information includes values
(volts, rpm, temperature, speed etc.) and system status information
(open loop, closed loop, fuel system status, etc.) generated by the various vehicle sensors, switches and actuators.
In effect the Scan Tool lets you view, in "real time", the same signal values generated by the sensors, actuators, switches and/or vehicle system status information used by the vehicle's computer when calculating and conducting system adjustments and corrections.
The real time (Live Data) vehicle operating information (values/status) that the computer supplies to the Scan Tool for each sensor, actuator, switch, etc. is called Parameter Identification (PID) Data.
Each PID (sensor, actuator switch, status, etc.) has a set of operating characteristics and features (parameters) that serve to identify it. The
Scan Tool displays this information for each sensor, actuator, switch or status that is supported by the vehicle under test.
WARNING: If the vehicle must be driven in order to perform a troubleshooting procedure, ALWAYS have a second person help you. One person should drive the vehicle while the other person observes the Scan Tool data. Trying to drive and operate the Scan Tool at the same time is dangerous, and could cause a serious traffic accident.
VIEWING LIVE DATA
1.
While linked to the vehicle, start the engine, then press and release the
LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight View Live
Data, then press the ENTER button.
3.
Real-time Live Data (PID) information supported by the vehicle under test displays.
Remember, what you are viewing is "real-time" Live Data. The values (volts, rpm, temperature, vehicle speed, system status etc) for the various PIDS displayed may change as the vehicle's operating conditions change.
4.
A vehicle usually supports several PIDs, however, only a limited amount of PID data can be displayed on the screen at one time. If additional PID data is available, a small arrow will be shown on the display. Use the the UP and DOWN buttons, as necessary, to scroll up or down to view all available PID data.
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Live Data Mode
CUSTOMIZING LIVE DATA (PIDs)
If communication with the vehicle is lost while viewing Live Data, a
Communication Lost" message shows on the Scan Tool's display.
5.
Press and release the ENTER
button to view the currently selected PID in
“graph” mode. Press and release the
ENTER button again to return to the
PID list.
6.
Press and hold the ENTER
button to view the “expanded” definition for the currently selected PID. Press and release the ENTER button again to return to the PID list.
7.
If you experience vehicle problems, view and/or compare the Live Data (PID) information displayed on the Scan Tool to specifications in the vehicle's repair manual.
If desired, you can "customize" the
Live Data display to show only those
PIDs you are interested in viewing.
See Customizing Live Data (PIDs) below for details. You may also choose to "capture" (record) Live
Data for later viewing. See RECORDING (CAPTURING) LIVE
CUSTOMIZING LIVE DATA (PIDs)
This feature lets you customize the Scan Tool display to show only those PIDs that are of interest at the current time. You can customize the Live Data display by placing the Scan Tool in "Custom Live Data" mode and selecting only the PIDs that you wish to display. To customize the Live Data display, proceed as follows:
1.
While linked to the vehicle, start the engine, then press and release the
LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Live Data
Menu, then press the ENTER button.
The “Live Data” menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight Custom Live
Data, then press the ENTER button.
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Live Data Mode
RECORDING (CAPTURING) LIVE DATA
The "Custom Live Data" menu displays, with the first PID in the menu highlighted.
4.
Use the UP
and DOWN buttons to scroll through the available PIDs.
When the PID you wish to display is highlighted, press the ENTER button to select it (a "checkmark" will show in the checkbox to the right of the PID to confirm your selection). Repeat the procedure until only the PIDs you want to display have all been selected.
To deselect a currently selected PID, highlight the PID, then press the ENTER button. The checkmark will be removed from the checkbox.
5.
When you are finished making your selection(s), scroll to the end of the PID list and highlight the word DONE, then press the ENTER button.
The Scan Tool is now in "Custom Live Data" mode. Only the
PIDs you selected are shown on the Scan Tools display.
6.
To exit the "Custom Live Data" mode, press the LD/M as necessary until the “Test Modes” menu displays.
button
RECORDING (CAPTURING) LIVE DATA
You can record and save several frames of Live Data information for each PID supported by the vehicle in the Scan Tool's memory.
Recorded Live Data can serve as valuable information to help you in the troubleshooting of vehicle problems.
There are two ways that the Scan Tool can "record" Live Data:
Record by DTC Trigger
Record by Manual Trigger
If the POWER/LINK button is pressed at any time while in
Live Data mode, any stored (recorded) Live Data will be cleared (erased) from the Scan Tool’s memory.
Record by DTC Trigger
This function automatically records (captures) Live Data information when a DTC sets and saves it in the Scan Tool’s memory. The recorded
(captured) data can be a valuable troubleshooting aid, particularly if you are experiencing a fault that is causing a DTC to set.
1.
While linked to the vehicle, start the engine, then press and release the LD/M button.
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Live Data Mode
RECORDING (CAPTURING) LIVE DATA
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Live Data
Menu, then press the ENTER button.
The “Live Data” menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight Record Live
Data, then press the ENTER button.
The "Record Live Data Menu" displays.
4.
Use the UP
and DOWN buttons, as necessary, to highlight Record by
DTC trigger, then press the ENTER button.
If DTCs are presently stored in the vehicle’s computer, an advisory message displays. Use the UP and DOWN buttons, as necessary, to highlight Erase DTCs, then press the ENTER button to erase DTCs from the vehicle’s computer. When the Erase process is complete, the “Record by DTC
Trigger” screen displays.
5.
When the "Record by DTC Trigger" screen displays, select the desired trigger point as follows:
The Scan Tool is capable of recording approximately 100 frames of Live Data. Record by DTC trigger lets you select the point in time at which you wish the Scan Tool to begin recording Live Data. You can set the trigger point to record the
100 frames of data before an event (when the DTC sets), after the event, or in the middle (50 frames before and 50 frames after the event.
Beginning - records approximately
100 frames of Live Data after the
DTC sets.
Middle - records approximately 50 frames of Live Data before and 50 frames after the DTC sets.
End - records approximately 100 frames of Live Data before the DTC sets.
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Live Data Mode
RECORDING (CAPTURING) LIVE DATA
6.
Use the UP
and DOWN buttons, as necessary, to select the desired trigger point, then press the ENTER button.
A "One moment please. . ." message shows on the display. When the Scan
Tool is ready to record Live Data, the
"Record Live Data" screen displays.
7.
Put the engine in the operating condition that causes the DTC to set.
If necessary, drive the vehicle until you reach the vehicle speed at which the problem occurs.
8.
When the Scan Tool detects a fault that causes a DTC to set, it automatically records and saves approximately 20 frames of Live
Data information in its memory (according to your trigger selection) for each PID supported by the vehicle.
All three LEDs will blink for three seconds to indicate that Live Data is being recorded, and a "One moment please..." message shows on the display, along with the number of the frame being recorded.
When recording is complete, a confirmation screen displays, asking if you would like to view the recorded data. Use the UP and
DOWN buttons, as necessary, to select Yes or No, as desired, then press the ENTER button.
If Yes is selected, the Scan Tool enters "Playback" mode from which you can view a frame-by-
frame playback of recorded Live Data (see LIVE DATA
PLAYBACK on page 67 for details). If No is selected, the
display returns to the "Mode Selection Menu".
9.
You can exit the "Record Live Data Mode" at any time by pressing the LD/M
Menu.”
button as necessary to return to the “Live Data
If desired, you can transfer the recorded Live Data information to a personal computer with the use of optional software (see instructions included with the software for more information).
Record by Manual Trigger
This option lets you select the precise time at which the Live Data recording will occur. Record by Manual Trigger can be a very valuable diagnostic tool when troubleshooting intermittent problems that do not meet the requirements for a DTC to set. Even though a DTC is not present, the intermittent problems will sometimes manifest themselves briefly, for a few fractions of a second and/or only at certain vehicle speeds or vehicle operating conditions.
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Live Data Mode
RECORDING (CAPTURING) LIVE DATA
1.
While linked to the vehicle, start the engine, then press and release the
LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Live Data
Menu, then press the ENTER button.
The “Live Data” menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight Record Live
Data, then press the ENTER button.
The "Record Live Data Menu" displays.
4.
Use the UP
and DOWN buttons, as necessary, to highlight Record by
manual trigger, then press the ENTER
button.
5.
When the "Record by Manual Trigger" screen displays, select the desired trigger point as follows:
The Scan Tool is capable of recording approximately 100 frames of Live Data. Record by DTC trigger lets you select the point in time at which you wish the Scan Tool to begin recording Live Data. You can set the trigger point to record the
100 frames of data before an event (when the DTC was set), after the event, or in the middle (50 frames before and 50 frames after the event.
Beginning - records approximately
100 frames of Live Data after the
ENTER button was pressed.
Middle - records approximately 50 frames of Live Data before and 50 frames after the ENTER button was pressed.
End - records approximately 100 frames of Live Data before the
ENTER button was pressed.
6.
Use the UP
and DOWN buttons, as necessary, to select the desired trigger point, then press the ENTER button.
A "One moment please. . ." message shows on the display.
When the Scan Tool is ready to record Live Data, the "Record Live
Data" screen displays.
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Live Data Mode
LIVE DATA PLAYBACK
7.
Put the engine in the operating condition where the problem manifests itself.
If necessary, drive the vehicle until you reach the vehicle speed at which the problem occurs.
8.
When the problem occurs, press and release the ENTER button.
All three LEDs will blink for three seconds to indicate that Live Data is being recorded, and a "One moment please. . ." message shows on the display, along with the number of the frame being recorded.
When recording is complete, a confirmation screen displays, asking if you would like to view the recorded data. Use the UP and
DOWN buttons, as necessary, to select Yes or No, as desired, then press the ENTER button.
If Yes is selected, the Scan Tool enters "Playback" mode from which you can view a frame-by-frame playback of recorded Live
Data (see LIVE DATA PLAYBACK on page 67 for details). If No
is selected, the display returns to the "Mode Selection Menu".
9.
You can exit the "Record Live Data Mode" at any time by pressing the
LD/M button as necessary to return to the “Live Data Menu.”
If desired, you can transfer the recorded Live Data information to a personal computer with the use of optional software (see instructions included with the software for more information).
Important Information
When Live Data capture is initiated, the green, yellow and red LEDs on the Scan Tool will flash three times to indicate that Live Data is being saved to the Scan Tool's memory.
LIVE DATA PLAYBACK
Once Live Data has been recorded, it is saved in the Scan Tool's memory. You can view recorded Live Data immediately after recording by selecting Yes from the Record Live Data confirmation screen (see
RECORDING (CAPTURING) LIVE DATA on page 63 for more
information), or you can view it later using the "Playback" function.
1.
With the Scan Tool not connected to a vehicle, press the
POWER/LINK button.
The "To Link" screen shows on the Scan Tool's display.
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Live Data Mode
LIVE DATA PLAYBACK
2.
Press and release the LD/M
button.
The “Test Modes” menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight Live Data
Menu, then press the ENTER button.
The “Live Data” menu displays.
4.
Use the UP
and DOWN buttons, as necessary, to highlight Playback
Live Data, then press the ENTER button to place the Scan Tool in “Live
Data Playback” mode.
The display shows the recorded Live
Data, beginning with the “trigger” frame.
When you select Yes from the
Record Live Data confirmation screen, the Scan Tool enters the
"Live Data Playback" mode, and the display shows the recorded
Live Data, beginning with the
"trigger" frame.
A vehicle usually supports several PIDs, however, only a limited amount of PID data can be displayed on the screen at one time.
If additional PID data is available, a small arrow will be shown on the display. Use the UP and DOWN buttons, as necessary, to scroll up or down to view all available PID data.
When viewing recorded Live Data, look for any irregularities in any of the PID values/signal information (LTFT %, RPM, MAP, TEMP, etc.). If any PIDs are not within specification, or irregularities are detected, follow the procedures in the vehicle's service repair manual to perform additional troubleshooting and repair.
When recorded Live Data is played back, all available PIDs are shown, even if you have customized the Live Data selections.
If there is no Live Data currently stored in the Scan Tool's memory, an advisory message shows on the display. Press the LD/M button to exit the "Live Data
Playback" mode.
5.
When you have viewed all PID information for the current frame of
Live Data, use the DOWN button to scroll to the end of the PID list. Highlight Next Frame or Previous Frame, as desired, then press the ENTER button.
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Live Data Mode
LIVE DATA PLAYBACK
6.
When you have finished viewing the recorded Live Data, exit the
“Live Data Playback” mode using the appropriate procedure shown below:
If the Scan Tool is connected to a vehicle, use the DOWN button to scroll to the end of the PID list, highlight Exit Playback, then press the ENTER button.
If the Scan Tool is not connected to a vehicle, press the DTC/FF
button.
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Additional Tests
SPECIAL TEST MENU
In addition to retrieving Diagnostic Trouble Codes (DTCs) and viewing Live
Data, you can use the Scan Tool to perform additional diagnostic tests, to view diagnostic and vehicle information stored in your vehicle's on-board computer, and to configure the Scan Tool for your particular needs.
SPECIAL TEST MENU
Additional tests are accessed through the
“Special Test Menu.” The following functions are available from the "Special
Test Menu:"
O2 Sensor Test - Retrieves and displays O2 sensor monitor test results from your vehicle's on-board computer.
Non-Continuous Test - Retrieves and displays test results for emission-related powertrain components and systems that are not continuously monitored.
EVAP Leak Test - Performs a leak test for the vehicle's EVAP system.
1.
While linked to the vehicle, press and release the LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Special Test, then press the ENTER button.
The “Special Test Menu” displays.
O2 Sensor Test
OBD2 regulations require that applicable vehicles monitor and test operation of the oxygen (O2) sensors to identify problems that can affect fuel efficiency and vehicle emissions. These tests are performed automatically when engine operating conditions are within predefined limits. Results of these tests are stored in the on-board computer's memory.
The O2 Sensor Test function lets you retrieve and view O2 sensor monitor test results for the most recently completed tests from your vehicle's on-board computer.
Vehicles are equipped with multiple O2 sensors. O2 sensors are installed both upstream of (before) and downstream of (after) the exhaust system Catalytic Converters. The name of an O2 sensor identifies its location in the exhaust system. The name of each O2 sensor is made up of three parts:
O2S XX YY -or- O2S X Y
O2S - this is the basic designation for all O2 sensors.
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X or XX - These characters identify the location of the O2 sensor in relation to a cylinder bank. An O2 sensor for cylinder bank 1 is identified by the designation “1” or "B1"; a sensor for cylinder bank 2 is identified as “2” or "B2."
”Bank One” indicates the side of the engine where cylinder number one is located (V-type engines). Bank Two is opposite of Bank One.
Y or YY - These characters identity the location of the O2 sensor in relation to the exhaust system catalyst. An O2 sensor located upstream of the catalyst is identified by the designation”1” or "S1", a sensor located downstream of the Catalytic Converter is identified as “2” or "S2."
For example, O2S12 or O2SB1S2 is the designation for the downstream O2 sensor for cylinder bank 1.
The Scan Tool does not perform O2 sensor tests, but retrieves results from the most recently performed O2 sensor tests from the on-board computer's memory. You may retrieve O2 sensor test results for only one test of one sensor at any given time.
Depending on the communication protocol, the O2 Sensor
Test may not be available for the vehicle under test.
1.
From the "Special Test Menu", use the
UP and DOWN buttons, as necessary, to highlight O2 Sensor Test, then press the ENTER button.
2.
A "One moment please..." message displays while the request is sent to the vehicle's on-board computer.
The "Select Sensor" screen displays. The screen shows all O2 sensors applicable to the vehicle under test.
If O2 sensor tests are not supported by the vehicle under test, an advisory message shows on the Scan Tool's display. Press the LD/M button to return to the “System Test Menu.”
3.
Use the UP
and DOWN buttons, as necessary, to highlight the O2 sensor for which you wish to view test results, then press the ENTER button.
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Additional Tests
SPECIAL TEST MENU
4.
When test results have been retrieved, data for the selected sensor test will show on the Scan Tool's display.
5.
When you have finished viewing the retrieved test data, press the LD/M button to return to the "Select sensor" screen.
6.
Repeat steps 1 through 5 to view test results for additional sensors.
When you have finished viewing the retrieved test data, press the
LD/M button to return to the “Special Test Menu” screen.
Non-Continuous Test
The Non-Continuous Test function retrieves and displays test results for emission-related powertrain components and systems that are not continuously monitored. The tests available are determined by the vehicle manufacturer.
1.
From the "Special Test Menu", use the
UP and DOWN buttons, as necessary, to highlight Non-
Continuous Test, then press the
ENTER button.
2.
A “One moment please. . .” message displays while the request is sent to the vehicle’s on-board computer.
The Scan Tool does not perform non-continuous test, but retrieves results from the most recently performed tests from the on-board computer’s memory. You may retrieve noncontinuous test results for only one test at any given time.
The “Select Test” screen displays.
The screen shows all tests applicable to the vehicle under test.
Refer to the vehicle’s service repair manual for information related to non-continuous tests.
If non-continuous tests are not supported by the vehicle under test, an advisory message shows on the
Scan Tool's display. Press the
LD/M button to return to the
Mode Selection menu.
3.
Use the UP
and DOWN buttons, as necessary, to highlight the desired test, then press the ENTER button.
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4.
When test results have been retrieved, data for the selected test will show on the Scan Tool’s display. The display shows the following information:
Test ID number
Module ID number
Component ID number
Min or Max test limit
Only one test limit, either Min or Max, is shown for any given test.
Test Value and status
Status is calculated by the Scan Tool by comparing the Test
Value against the displayed test limit (either Min or Max).
Status is shown as either Low, High or OK.
5.
Press the LD/M
button to return to the “Select Test” screen.
When you have finished viewing the retrieved test data, press the
LD/M button to return to the “Special Test Menu” screen.
6.
Repeat steps 1 through 5 to view test results for additional tests.
EVAP Leak Test
The EVAP Leak Test function lets you initiate a leak test for the vehicle's EVAP system.
The Scan Tool does not perform the leak test, but signals to vehicle's on-board computer to initiate the test. The vehicle manufacturer determines the criteria and method for stopping the test once it has been started. BEFORE using the EVAP
Leak Test function, refer to the vehicle's service repair manual to determine the procedures necessary to stop the test.
1.
From the "Special Test Menu", use the
UP and DOWN buttons as necessary, to highlight EVAP Leak Test, then press the ENTER button.
2.
A "One moment please..." message displays while the request is sent to the vehicle's on-board computer.
Some vehicle manufacturers do not allow Scan Tools or other external devices to control vehicle systems. If the EVAP Leak Test is not supported by the vehicle under test, an advisory message shows on the
Scan Tool's display. Press the LD/M
button to return to the System
Test menu.
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Additional Tests
VIEWING VEHICLE INFORMATION
3.
When the EVAP leak test has been initiated by the vehicle's on-board computer, a confirmation message shows on the Scan Tool's display. Press the LD/M button to return to the
“Special Test Menu.”
VIEWING VEHICLE INFORMATION
The Vehicle Info function offers four options for retrieving reference information for the vehicle under test; Vehicle Info, Vehicle ID,
Available Modules and IPT (In-Use Performance Tracking).
Retrieving Vehicle Info
The Scan Tool can retrieve a list of information related to the vehicle under test from the vehicle's on-board computer. This information may include the vehicle manufacturer, make, model, model year, engine size and transmission type.
1.
While linked to the vehicle, press and release the LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Vehicle Info, then press the ENTER button.
The Vehicle Info Menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight Vehicle Info, then press the ENTER button.
4.
When the retrieval process is completed, the vehicle information is shown on the
Scan Tool's display. Use the UP and
DOWN buttons, as necessary, to view the entire list.
5.
When you have finished viewing the retrieved vehicle information, press the
LD/M button to exit.
Retrieving Vehicle ID Information
The Vehicle ID function is applicable to model year 2000 and newer OBD2-compliant vehicles.
The Scan Tool can retrieve a list of information (provided by the vehicle manufacturer), unique to the vehicle under test, from the vehicle's onboard computer. This information may include:
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VIEWING VEHICLE INFORMATION
The vehicle's VIN number
The control module identification number
The vehicle's calibration ID(s). These IDs uniquely identify the software version(s) for the vehicle's control module(s).
The Vehicle's Calibration Verification Number(s) (CVNs) required by
ODB2 regulations. CVNs are used to determine if emission-related calibrations for the vehicle under test have been changed. One or more CVNs may be returned by the vehicle's computer.
1.
While linked to the vehicle, press and release the LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Vehicle Info, then press the ENTER
button.
The Vehicle Info Menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight Vehicle ID, then press the ENTER
button.
The first time the Vehicle ID function is used, it may take several minutes to retrieve the information from the vehicle's computer.
4.
When the retrieval process is completed, the vehicle ID information is shown on the Scan Tool's display. Use the UP and DOWN buttons, as necessary, to view the entire list.
5.
When you have finished viewing the retrieved vehicle ID information, press the LD/M button to exit.
Viewing Available Modules
The Scan Tool can retrieve a list of modules supported by the vehicle under test.
1.
While linked to the vehicle, press and release the LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Vehicle Info, then press the ENTER
button.
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VIEWING VEHICLE INFORMATION
The Vehicle Info Menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight Available
Modules, then press the ENTER button.
4.
When the retrieval process is completed, a complete list of modules supported by the vehicle under test is shown on the
Scan Tool's display. Use the UP and
DOWN buttons, as necessary, to view the entire list.
5.
When you have finished viewing the list of available modules, press the LD/M
button to return to the “System
Test Menu.”
Viewing In-use Performance Tracking (IPT)
The Scan Tool can retrieve In-use Performance Tracking (IPT) statistics for monitors supported by the vehicle under test. Two values are returned for each monitor; the number of times that all conditions necessary for a specific monitor to detect a malfunction have been encountered (XXXCOND), and the number of times that the vehicle has been operated under the specific conditions for the monitor (XXXCOMP).
Statistics are also provided for the number of times the vehicle has been operated in OBD monitoring conditions (OBDCOND), and the number of times the vehicle’s engine has been started (IGNCNTR).
1.
While linked to the vehicle, press and release the LD/M button.
The “Test Modes” menu displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight Vehicle Info, then press the ENTER
button.
The Vehicle Info Menu displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight IPT, then press the ENTER
button.
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If In-use Performance Tracking is not supported by the vehicle under test, an advisory message shows on the Scan Tool’s display. Press the
LD/M button to exit.
4.
When the retrieved process is completed,
In-use Performance Tracking statistics for monitors supported by the vehicle under test are shown on the Scan Tool’s display. Use the UP and DOWN buttons, as necessary, to view the entire list.
5.
When you have finished viewing the statistics, press the LD/M exit. button to
ADJUSTMENTS AND SETTINGS
The Scan Tool lets you make several adjustments and settings to configure the Scan Tool to your particular needs. It also contains an
OBD2 DTC Library that allows you to search for DTC definitions. The following functions, adjustments and settings can be performed when the Scan Tool is in “MENU Mode”:
Adjust Brightness: Adjusts the brightness of the display screen.
Audible Tone: Turns the Scan Tool’s audible tone “on” and “off.”
When turned “on,” a tone sounds each time a button is pressed.
Display Backlight: Turns the display backlight on and off.
DTC Library - Library of OBD2 DTC definitions.
Firmware Version: Displays the Scan Tool’s firmware version.
Select Language: Sets the display language for the Scan Tool to
English, French or Spanish.
Unit of Measurement: Sets the Unit of Measurement for the Scan
Tool’s display to USA or Metric.
Adjustments and settings can be made only when the Scan
Tool is NOT connected to a vehicle.
To enter the MENU Mode:
1.
With the Scan Tool on the Code
Retrieval screen, press and release the
LD/M button.
The “Test Modes” menu displays.
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ADJUSTMENTS AND SETTINGS
2.
Use the UP
and DOWN buttons, as necessary, to highlight Tool Settings, then press the ENTER button.
The Tool Settings Menu displays.
3.
Make adjustments and settings as described in the following paragraphs.
Adjusting Display Brightness
1.
Use the UP
and DOWN buttons, as necessary, to highlight Adjust
Brightness in the Menu, then press the
ENTER button.
The Adjust Brightness screen displays.
The Brightness field shows the current brightness setting, from 1 to 4.
2.
Press the UP
button to decrease the brightness of the display (make the display darker).
3.
Press the DOWN
button to increase the brightness of the display (make the display lighter).
4.
When the desired brightness is obtained, press the ENTER button to save your changes and return to the Menu.
Enabling the Audible Tone
1.
Use the UP
and DOWN buttons, as necessary, to highlight Audible Tone in the Menu, then press the ENTER button.
The Audible Tone screen displays.
2.
Press the UP
or DOWN button, as necessary, to highlight ON or OFF as desired.
3.
When the desired option is selected, press the ENTER button to save your changes and return to the Menu.
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ADJUSTMENTS AND SETTINGS
Using the Backlight
1.
Use the UP
and DOWN buttons, as necessary, to highlight Display
Backlight in the Menu, then press the
ENTER button.
The Display Backlight screen displays.
2.
Press the UP
or DOWN button, as necessary, to select the desired backlight mode, either ON or OFF.
3.
When the desired backlight mode is selected, press the ENTER button to save your changes.
The display returns to the Menu, and the backlight turns “on” or “off” as selected.
Searching for a DTC Definition Using the DTC Library (OBD1)
1.
Use the UP
and DOWN buttons, as necessary, to highlight DTC Library in the Menu, then press the ENTER button.
The Select Library screen displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight OBD1
Library in the Menu, then press the
ENTER button.
The Select Manufacturer screen displays.
3.
Use the UP
and DOWN buttons, as necessary, to highlight the desired vehicle manufacturer, then press the
ENTER button.
A confirmation screen displays.
- If the correct manufacturer is
shown, press the ENTER button and proceed to step 4.
- If the correct manufacturer is not shown, press the LD/M button to return to the Select
Manufacturer screen and re-select the desired vehicle manufacturer.
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Additional Tests
ADJUSTMENTS AND SETTINGS
4.
The Enter DTC screen displays. The screen shows the code "001", with the first "0" highlighted.
5.
Use the UP
and DOWN buttons, as necessary, to scroll to the first digit of the DTC, then press the DTC/FF button.
The selected character displays solid, and the next character is highlighted.
6.
Select the remaining digits in the DTC in the same way, pressing the DTC/FF
button to confirm each digit. When you have selected all the DTC digits, press the ENTER button to view the
DTC definition.
If a definition for the DTC you entered is not available, an advisory message shows on the
Scan Tool’s display.
7.
If you wish to view definitions for additional DTCs, press the DTC/FF or LD/M button to return to the Enter
DTC screen, and repeat steps 4 and 5.
8.
When all desired DTCs have been viewed, press the DTC/FF or LD/M button to return to the Enter DTC screen (if necessary), then press the LD/M button to exit the DTC Library.
Searching for a DTC Definition Using the
DTC Library (OBD2)
1.
Use the UP
and DOWN buttons, as necessary, to highlight DTC Library in the Menu, then press the ENTER button.
The Select Library screen displays.
2.
Use the UP
and DOWN buttons, as necessary, to highlight OBD2
Library in the Menu, then press the
ENTER button.
Tool Settings Menu:
* Adjust Brightness
* Audible Tone
* Display Backlight
* DTC Library
* Firmware Version
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The Enter DTC screen displays. The screen shows the code
“P0001”, with the “P” highlighted.
3.
Use the UP
and DOWN buttons, as necessary, to scroll to the desired
DTC type (P=Powertrain, U=Network,
B=Body, C=Chassis), then press the
DTC/FF
button.
The selected character displays “solid”, and the next character is highlighted.
4.
Select the remaining characters in the DTC in the same way, pressing the DTC/FF button to confirm each character. When you have selected all the DTC characters, press the ENTER button to view the DTC definition.
If you entered a “Generic” DTC
(DTCs that start with “P0”, “P2” and some “P3”):
- The selected DTC and DTC definition (if available) show on the Scan Tool’s display.
If a definition for the DTC you entered is not available, an advisory message shows on the Scan Tool’s display.
If you entered a “Manufacturer-Specific” DTC (DTCs that start with “P1” and some “P3”):
- The “Select Manufacturer” screen displays.
- Use the UP and DOWN buttons, as necessary, to highlight the appropriate manufacturer, then press the ENTER button to display the correct DTC for your vehicle.
A confirmation screen displays.
- If the correct manufacturer is
shown, press the ENTER button to view the DTC definition.
- If the correct manufacturer is not shown, press the LD/M button to return to the Select
Manufacturer screen and re-select the desired vehicle manufacturer.
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ADJUSTMENTS AND SETTINGS
If a definition for the DTC you entered is not available, an advisory message shows on the
Scan Tool’s display.
5.
If you wish to view definitions for additional DTCs, press the ENTER button to return to the Enter DTC screen, and repeat steps 3 and 4.
6.
When all desired DTCs have been viewed, press the LD/M button to return to the Enter DTC screen (if necessary), then press the LD/M button to exit the DTC Library.
Viewing the Firmware Version
1.
Use the UP
and DOWN buttons, as necessary, to highlight Firmware
Version in the Menu, then press the
ENTER button.
The Firmware Version screen displays.
The screen shows the Scan Tool’s current firmware version.
2.
Press the LD/M the Menu.
button to return to
Selecting the Display Language
1.
Use the UP
and DOWN buttons, as necessary, to highlight Select
Language in the Menu, then press the
ENTER button.
The Select Language screen displays.
The currently selected display
Language is highlighted.
2.
Press the UP
or DOWN button, as necessary, to highlight the desired display language.
3.
When the desired display language is highlighted, press the ENTER button to save your changes and return to the
Menu (shown in the selected display language).
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ADJUSTMENTS AND SETTINGS
Setting the Unit of Measurement
1.
Use the UP
and DOWN buttons, as necessary, to highlight Unit of
Measurement in the Menu, then press the ENTER button.
2.
Press the UP
or DOWN button, as necessary, to highlight the desired
Unit of Measurement.
3.
When the desired Unit of Measurement value is selected, press the ENTER button to save your changes and return to the Menu.
Exiting the MENU Mode
1.
To exit the Enhanced Menu: Press the LD/M
DTC screen shows the first code retrieved.
button. The OBD2
The LCD display returns to the DTC screen (if data is currently stored in the Scan Tool’s memory) or the “To Link” screen (if no data is stored).
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Using Scan Tool Memory
VIEWING DATA IN MEMORY
When you retrieve DTCs and/or record Live Data from a vehicle, the data is saved to the Scan Tool’s memory.
Each time you retrieve DTCs or record Live Data, existing data in the Scan Tool's memory is overwritten with the new data.
VIEWING DATA IN MEMORY
When you turn the Scan Tool on while NOT connected to a vehicle, and data is currently saved in the Scan Tool's memory, the Scan Tool enters
Memory mode. You can view DTCs and Live Data stored in the Scan
Tool's memory.
1.
With the Scan Tool NOT connected to a vehicle. press and release the
POWER/LINK
Scan Tool on.
button to turn the
2.
To view DTCs in the Scan Tool's memory, press the DTC/FF button.
The Scan Tool displays the "priority"
DTC.
If there are no DTCs currently stored in the Scan Tool's memory, an advisory message shows on the display.
Press the DTC/FF button to scroll through all stored DTCs.
- If a recommended solution for the
"priority" DTC is available, the Fix
Assist screen for the DTC is displayed immediately following the "priority" DTC. The screen shows recommended inspection and repair actions to correct the malfunction that caused the DTC to be set.
- Freeze Frame data (if available) will display following the "priority"
DTC and Fix Assist screen.
When all DTCs have been displayed and the DTC/FF button is pressed, the display returns to the
"priority" DTC.
3.
To view Live Data in the Scan Tool's memory, press the LD/M button.
The display shows the recorded
Live Data, beginning with the
“trigger” frame.
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Using Scan Tool Memory
VIEWING DATA IN MEMORY
If there is no Live Data currently stored in the Scan
Tool's memory, an advisory message shows on the display.
Use the UP or DOWN buttons, as necessary, to scroll up or down to view all available PID data.
When stored Live Data is played back, all available PIDs are shown, even if you have customized the Live Data selections.
When you have viewed all PID information for the current frame of Live Data, use the DOWN button to scroll to the end of the
PID list. Highlight Next Frame or Previous Frame, as desired, then press the ENTER button.
When you have finished viewing the recorded Live Data, use the
DOWN button to scroll to the end of the PID list, highlight
Exit Playback, then press the ENTER button.
4.
When you have finished viewing data in the Scan Tool's memory, press and release the POWER/LINK button to turn the Scan
Tool off.
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Generic (Global) OBD2 PID List
The following is a list of Generic (Global) PIDs and their descriptions.
Tool
Display
ACC Pedal D
ACC Pedal E
ACC Pedal F
Air Status
%
%
%
-
XXX.X
XXX.X
XXX.X
UPS, DNS,
OFF
Accelerator Pedal Position D
Accelerator Pedal Position E
Accelerator Pedal Position F
Commanded Secondary Air Status
Ambient Air Temperature
Aux Input
Status
*F
- On / Off Auxiliary Input Status
Calc LOAD
CAT Temp 11
CAT Temp 12
CAT Temp 21
CAT Temp 22
/inHg
%
*C /
*F
*C /
*F
*C /
*F
*C /
*F
XX.X
XXX.X
XXXX.X Catalyst Temperature Bank 1-
XXXX.X
XXXX.X
XXXX.X
Barometric Pressure
Calculated LOAD Value
Sensor 1
Catalyst Temperature Bank 1-
Sensor 2
Catalyst Temperature Bank 2-
Sensor 1
Catalyst Temperature Bank 2-
Sensor 2
Command
EGR
Command
EVAP
Command
TAC
Dist DTC Clr
% XXX.X Commanded Throttle Actuator km
/mile
XXXXX Distance since DTC Cleared
Dist MIL ON km
/mile s
XXXXX
ECT *C Engine Coolant Temp
ECU Volts
*F
V XX.XXX Control Module Voltage
EGR Error
Eng RPM
EQ Ratio
EQ Ratio 11
EQ Ratio 12
EQ Ratio 13
% min
-
-
-
-
XXX.X
XXXXX
X.XXX
X.XXX
X.XXX
X.XXX
Distance Traveled while MIL ON
EGR Error
Engine RPM
Commanded Equivalence Ratio
Bank 1 - Sensor 1 Equivalence
Ratio
Bank 1 - Sensor 2 Equivalence
Ratio
Bank 1 - Sensor 3 Equivalence
Ratio
EQ Ratio 14 - X.XXX Bank 1 - Sensor 4 Equivalence
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Tool
EQ Ratio 21
EQ Ratio 22
EQ Ratio 23
EQ Ratio 24
-
-
-
-
Value Description
Ratio
X.XXX
X.XXX
X.XXX
X.XXX
Bank 2 - Sensor 1 Equivalence
Ratio
Bank 2 - Sensor 2 Equivalence
Ratio
Bank 2 - Sensor 3 Equivalence
Ratio
Bank 2 - Sensor 4 Equivalence
Ratio
XXXX.XX
/XX.XXX
Evap System Vapor Pressure EVAP Press
FP / Vac
Fuel Level
Fuel Press
Fuel Press
Pa
/in
H2O kPa
/PSI
% kPa
/PSI kPa
/PSI
XXXX.XXX
/XXX.X
XXX.X
XXX /
XX.X
XXXXX
/XXXX.X
Fuel Rail Pressure relative toVacuum
Fuel Level Input
Fuel Rail Pressure
Fuel Rail Pressure
Fuel Sys 1
Fuel Sys 1
Fuel Sys 1
Fuel Sys 1
Fuel Sys 1
Fuel Sys 2
Fuel Sys 2
Fuel Sys 2
-
-
-
-
-
-
-
-
OL
CL
Fuel System 1 Status
Fuel System 1 Status
OL-Drive Fuel System 1 Status
OL-Fault Fuel System 1 Status
CL-Fault Fuel System 1 Status
OL Fuel System 2 Status
CL Fuel System 2 Status
OL-Drive Fuel System 2 Status
Fuel Sys 2
Fuel Sys 2
-
-
OL-Fault
CL-Fault
Fuel System 2 Status
Fuel System 2 Status
IAT *C Intake Air Temperature
*F
LOAD Value
LTFT B1
LTFT B2
LTFT B3
LTFT B4
%
%
%
%
% b/min
XXX.X
XXX.X
XXX.X
XXX.X
XXX.X
/XXXX.X
Absolute Load Value
Long Term Fuel Trim-Bank 1
Long Term Fuel Trim-Bank 2
Long Term Fuel Trim-Bank 3
Long Term Fuel Trim-Bank 4
Air Flow Rate from Mass Air Flow
Sensor
MIL On Time
Monitor Status
/PSI hrs, min
-
Intake Manifold Absolute Pressure
XX.X
XXXX, XX Engine Run Time while MIL ON
Monitor Status this Driving Cycle
O2S B1 S1
O2S B1 S1
V mA
ICONS on
Display
X.XXX
X.XXX
Bank 1 - Sensor 1
Bank 1 - Sensor 1 O2S Current
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Generic (Global) OBD2 PID List
Tool
Value Description
O2S B2 S2 V
O2S B2 S3
O2S B2 S3 mA
O2S B2 S3 V
O2S B2 S4
O2S B2 S4 mA
O2S B2 S4 V
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location
O2S Location mA
O2S B1 S1 V
O2S B1 S2
O2S B1 S2 mA
O2S B1 S2 V
O2S B1 S3
O2S B1 S3 mA
O2S B1 S3 V
O2S B1 S4
O2S B1 S4 mA
O2S B1 S4 V
O2S B2 S1
O2S B2 S1 mA
O2S B2 S1 V
O2S B2 S2
O2S B2 S2 mA
V
V mA
V
V mA
V
V mA
V
V mA
V
V mA
V
V mA
V
V mA
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
X.XXX
Bank 1 - Sensor 1 O2S Voltage
Bank 1 - Sensor 2
Bank 1 - Sensor 2 O2S Current
Bank 1 - Sensor 2 O2S Voltage
Bank 1 - Sensor 3
Bank 1 - Sensor 3 O2S Current
Bank 1 - Sensor 3 O2S Voltage
Bank 1 - Sensor 4
Bank 1 - Sensor 4 O2S Current
Bank 1 - Sensor 4 O2S Voltage
Bank 2 - Sensor 1
Bank 2 - Sensor 1 O2S Current
Bank 2 - Sensor 1 O2S Voltage
Bank 2 - Sensor 2
Bank 2 - Sensor 2 O2S Current
Bank 2 - Sensor 2 O2S Voltage
Bank 2 - Sensor 3
Bank 2 - Sensor 3 O2S Current
Bank 2 - Sensor 3 O2S Voltage
Bank 2 - Sensor 4
Bank 2 - Sensor 4 O2S Current
-
-
-
-
-
-
-
-
-
-
-
-
-
-
V
-
-
X.XXX
O2S11
O2S12
O2S13
O2S14
O2S21
O2S22
O2S23
O2S24
O2S11
O2S12
O2S21
O2S22
O2S31
O2S32
O2S41
O2S42
Bank 2 - Sensor 4 O2S Voltage
Oxygen Sensor, Bank 1, Sensor 1
Oxygen Sensor, Bank 1, Sensor 2
Oxygen Sensor, Bank 1, Sensor 3
Oxygen Sensor, Bank 1, Sensor 4
Oxygen Sensor, Bank 2, Sensor 1
Oxygen Sensor, Bank 2, Sensor 1
Oxygen Sensor, Bank 2, Sensor 3
Oxygen Sensor, Bank 2, Sensor 4
Oxygen Sensor, Bank 1, Sensor 1
Oxygen Sensor, Bank 1, Sensor 2
Oxygen Sensor, Bank 2, Sensor 1
Oxygen Sensor, Bank 2, Sensor 2
Oxygen Sensor, Bank 3, Sensor 1
Oxygen Sensor, Bank 3, Sensor 2
Oxygen Sensor, Bank 4, Sensor 1
Oxygen Sensor, Bank 4, Sensor 2
88 FixAssist
™
Generic (Global) OBD2 PID List
Tool
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
OBD Support
-
-
-
-
-
-
-
-
-
-
-
-
-
PTO Status
Rel TPS
Spark Adv
-
% deg
STFT B1
STFT B1 S1
STFT B1 S2
STFT B1 S3
STFT B1 S4
STFT B2
STFT B2 S1
STFT B2 S2
STFT B2 S3
STFT B2 S4
STFT B3
STFT B4
%
%
%
%
Time DTC Clr hrs, min
Time Since
Start sec
TPS %
TPS B
TPS C
%
%
%
%
%
%
%
%
%
%
Value Description
OBD2 OBD Requirements
OBD
OBD and
OBD2
OBD Requirements
OBD Requirements
OBD1 OBD Requirements
No OBD OBD Requirements
EOBD
EOBD and
OBD2
OBD Requirements
OBD Requirements
EOBD and
OBD
OBD Requirements
OBD Requirements EOBD,
OBD and
OBD2
JOBD
JOBD and
OBD2
JOBD and
EOBD
OBD Requirements
OBD Requirements
OBD Requirements
JOBD,
EOBD and
OBD2
On / Off
XXX.X
XX
XXX.X
XXX.X
XXX.X
XXX.X
XXX.X
XXX.X
XXX.X
XXX.X
OBD Requirements
Power Take Off Status
Relative Throttle Position
Ignition Timing Advance #1
Cylinder
Short Term Fuel Trim-Bank 1
Bank 1 - Sensor 1
Bank 1 - Sensor 2
Bank 1 - Sensor 3
Bank 1 - Sensor 4
Short Term Fuel Trim-Bank 2
Bank 2 - Sensor 1
Bank 2 - Sensor 2
XXX.X
XXX.X
XXX.X
XXX.X
Bank 2 - Sensor 3
Bank 2 - Sensor 4
Short Term Fuel Trim-Bank 3
Short Term Fuel Trim-Bank 4
XXXX, XX Time since DTC Cleared
XXXX
XXX.X
XXX.X
XXX.X
Time Since Engine Start
Absolute Throttle Position
Absolute Throttle Position B
Absolute Throttle Position C
FixAssist
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89
Generic (Global) OBD2 PID List
Tool
Veh Speed
Warm-up DTC
Clr km/h
/ mph
-
Value Description
XXX / XXX Vehicle Speed Sensor
XXX # Warm-ups since DTC Cleared
90 FixAssist
™
Vehicle Applications - ABS
ABS APPLICATIONS – DOMESTIC
Chrysler
CHRYSLER
Model Year Model Year
300 LX
300C SRT8
2005-2011
2005-2011
PT Cruiser
Sebring
2001-2010
2001-2010
Aspen
2WD/4WD
2006-2009 Town & Country 2001-2011
Concorde 1998-2004 Voyager 2001-2011
DODGE
Model Year Model Year
2008-2011
Caravan 2001-2007 2007-2011
Grand Caravan 2001-2011 Ram SRT-10 2004-2007
JEEP
Model Year Model Year
SE
Grand Cherokee 1999-2011
Grand Cherokee
Laredo
Sport
Liberty
1999-2008 Patriot
Grand Cherokee
Limited
2002-2011
2007-2011
1999-2008 Wrangler 1997-2011
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Vehicle Applications - ABS
Ford
FORD
Model Year Model Year
Crown Victoria
(w/o traction control) wheel ABS)
1997-2011
1997-2011 wheel ABS) traction control) traction control)
Expedition (w/4wheel ABS)
Explorer (w/o traction control)
Explorer Sport
(w/o traction control)
Explorer Sport
Trac
(w/o traction control)
F-150
(w/4-wheel ABS)
1996-2011 traction control)
Taurus X (w/o traction control)
1997-2011
1996-2011
1996-2011 Windstar 1996-2003
LINCOLN
Model Year Model Year
Aviator 2003-2005 2007-2011
Blackwood 2002 MKZ 2007-2011
Continental 1996-2002 Navigator 1998-2011
Mark LT
Mark VIII
2006-2008
1997-1998
Zephyr
MERCURY
2006
Model Year Model Year
Grand Marquis 1996-2011
2008
Mountaineer 1997-2011
92 FixAssist
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Vehicle Applications - ABS
GM
BUICK
Model Year Model Year
Park Avenue 1997-2005 Enclave 2008-2011
CADILLAC
Model Year Model Year
2004-2009
Escalade 1999-2008
CHEVROLET
Model Year Model Year
Avalanche 2002-2011 K1500 1999-2003
Express 1999-2011
GMC
Model Year Model Year
HUMMER
Model Year Model Year
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Vehicle Applications - ABS
OLDSMOBILE
Model Year Model Year
PONTIAC
Model Year Model Year
Bonneville SE 2000-2005 Grand Prix 2004-2008
Bonneville SLE 2000-2005 Montana 2000-2005
Bonneville SSEi 2000-2005 Montana 2005-2007
G8 2008-2009
ABS APPLICATIONS – IMPORT
Honda
ACURA
Model Year Model Year
2001-2003
RL 1998-2011
HONDA
Model Year Model Year
94 FixAssist
™
Vehicle Applications - ABS
Toyota
LEXUS
Model Year Model Year
ES 300
ES 330
ES 350
GS 300
GS 350
GS 400
GS 430
GS 450h
GS 460
GX 470
IS 250
IS 300
IS 350
2000-2003
2004-2006
2007-2010
1998-2006
2007-2010
1998-2000
2001-2007
2007-2011
2008
2003-2009
2006-2010
2001-2005
2006-2009
IS F
LS 430
LS 460
LS 600h
LX 470
LX 570
SC 430
RX 300
RX 330
RX 350
SC 430
RX400h
SCION
2008-2009
2001-2006
2007-2010
2008-2010
1998-2007
2008-2010
2002-2005
2001-2003
2004-2006
2007-2009
2002-2010
2006-2008
Model Year Model Year
TOYOTA
Model Year Model Year
4-Runner 2001-2010 2003-2008
Camry Solara 2004-2008 Rav4 2003-2005
FJ Cruiser 2007-2010 Tacoma 2003-2010
Highlander 2001-2007 Tundra 2000-2010
Land Cruiser 2000-2010
FixAssist
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95
Glossary
GLOSSARY OF TERMS AND ABBREVIATIONS
GLOSSARY OF TERMS AND ABBREVIATIONS
ABS – Anti-Lock Brake System
CARB – California Air Resources Board
CCM – Central Control Module
Computer Control System – An electronic control system, consisting of an on-board computer and related sensors, switches and actuators, used to ensure peak performance and fuel efficiency while reducing pollutants in the vehicle’s emissions.
DIY – Do-It-Yourself
DLC – Data Link Connector
Drive Cycle – An extended set of driving procedures that takes into consideration the various types of driving conditions encountered in real life.
Driving Condition – A specific environmental or operation condition under which a vehicle is operated; such as starting the vehicle when cold, driving at steady speed (cruising), accelerating, etc.
DTC(s) – Diagnostic Trouble Code(s)
EGR – Exhaust Gas Recirculation
EPA – Environmental Protection Agency
EVAP – Evaporative Emissions System
Fault Code – See DTCs
Freeze Frame – A digital representation of engine and/or emissions system conditions present when a fault code was recorded.
FTP – Fuel Tank Pressure
Generic Code – A DTC that applies to all OBD2 compliant vehicles.
I/M Test / Emissions Test / Smog Check – A functional test of a vehicle to determine if tailpipe emissions are within Federal/State/Local requirements.
LCD – Liquid Crystal Display
LED – Light Emitting Diode
LTFT – Long Term Fuel Trim, is a program in the vehicle’s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A/F ratio (long term).
Manufacturer Specific Code – A DTC that applies only to OBD2 compliant vehicles made by a specific manufacturer.
MIL – Malfunction Indicator Lamp (also referred to as “Check Engine” light
OBD1 – On-Board Diagnostics Version 1 (also referred to as “OBD I”)
OBD2 – On-Board Diagnostics Version 2 (also referred to as “OBD II”)
96 FixAssist
™
Glossary
GLOSSARY OF TERMS AND ABBREVIATIONS
On-Board Computer – The central processing unit in the vehicle’s computer control system.
PCM – Powertrain Control Module
Pending Code – A code recorded on the “first trip” for a “two-trip” code.
If the fault that caused the code to be set is not detected on the second trip, the code is automatically erased.
PID – Parameter Identification
SRS – Supplemental Restraint System
STFT – Short Term Fuel Trim, is a program in the vehicle’s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A/F ratio. The vehicle uses this program to make minor fuel adjustments (fine tune) on a short-term basis.
System Status – An indication of whether or not a vehicle’s emissionsrelated system are operating properly and are ready for Inspection and
Maintenance testing.
Trip Drive Cycle – Vehicle operation that provides the necessary driving condition to enable a vehicle Monitor to run and complete its diagnostic testing.
VECI – Vehicle Emission Control Information Decal
FixAssist
™
97
Notes
98 FixAssist
™
Notes
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™
99
Notes
100 FixAssist
™
Warranty and Servicing
LIMITED ONE YEAR WARRANTY
The Manufacturer warrants to the original purchaser that this unit is free of defects in materials and workmanship under normal use and maintenance for a period of one (1) year from the date of original purchase.
If the unit fails within the one (1) year period, it will be repaired or replaced, at the Manufacturer’s option, at no charge, when returned prepaid to the Service Center with Proof of Purchase. The sales receipt may be used for this purpose. Installation labor is not covered under this warranty. All replacement parts, whether new or remanufactured, assume as their warranty period only the remaining time of this warranty.
This warranty does not apply to damage caused by improper use, accident, abuse, improper voltage, service, fire, flood, lightning, or other acts of God, or if the product was altered or repaired by anyone other than the Manufacturer’s Service Center.
The Manufacturer, under no circumstances shall be liable for any consequential damages for breach of any written warranty of this unit.
This warranty gives you specific legal rights, and you may also have rights, which vary from state to state. This manual is copyrighted with all rights reserved. No portion of this document may be copied or reproduced by any means without the express written permission of the
Manufacturer. THIS WARRANTY IS NOT TRANSFERABLE. For service, send via U.P.S. (if possible) prepaid to Manufacturer. Allow 3-4 weeks for service/repair.
SERVICE PROCEDURES
If you have any questions, require technical support or information on
UPDATES and OPTIONAL ACCESSORIES, please contact your local store, distributor or the Service Center.
USA & Canada:
(800) 544-4124 (6:00 AM-6:00 PM,
7 days a week PST)
All others: (714) 241-6802 (6:00 AM-6:00 PM,
7 days a week PST)
FAX: (714)
432-3979 (24 hr.)
Web: www.innova.com
FixAssist
™
101
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