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$XWR6FDQQHU Tool Information
Complete the following list using the
function “Tool Information” on
page 2-5. Provide this information when
contacting customer support.
Serial No:
SW ID:
HW Ver:
Boot Ver:
Prod ID:
Board ID:
Burn Date:
Burn Loc:
Copyright Information
Copyright © 2004 Actron Manufacturing, Inc.
All rights reserved.
The information, specifications and illustrations in
this manual are based on the latest information
available at the time of printing. Actron
Manufacturing reserves the right to make
changes at any time without notice.
6DIHW\3UHFDXWLRQV
For your safety, read this manual thoroughly before operating your Super
AutoScanner™. The safety messages presented below and throughout this
user’s manual are reminders to the operator to exercise extreme care when using
this test instrument.
Before using the scan tool, always refer to and follow safety messages and
applicable test procedures provided by the manufacturer of the vehicle or
equipment being tested.
Use equipment only as described in this manual.
Read All Instructions
Read, understand and follow all safety messages and instructions in this manual
and on the test equipment. Safety messages in this section of the manual contain
a signal word with a three-part message and, in some instances, an icon. The
signal word indicates the level of the hazard in a situation.
Safety Messages
Safety messages are provided to help prevent personal injury and equipment
damage. All safety messages are introduced by a signal word indicating the
hazard level. The types of safety messages are:
! DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury to the operator
or to bystanders.
! WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury to the
operator or to bystanders.
! CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in moderate or minor injury to the
operator or to bystanders.
IMPORTANT
Indicates a situation which, if not avoided, may result in
damage to the test equipment or vehicle.
Safety messages contain three different type styles.
• Normal type states the hazard.
• Bold type states how to avoid the hazard.
• Italic type states the possible consequences of not avoiding the hazard.
Example:
Engine systems can malfunction expelling fuel, oil vapors, hot
steam, hot toxic exhaust gases, acid, refrigerant and other debris.
Wear safety goggles and protective gloves, user and
bystander. Everyday eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
Engine systems that malfunction can cause injury.
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Safety – i
!
Safety Precautions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
!
Important Safety Instructions
! DANGER
Some vehicles are equipped with air bags. You must follow vehicle
service manual’s warnings when working around the air bag
components or wiring. If the service manual’s instructions are not
followed, the air bag may open up unexpectedly, resulting in
personal injury. Note that the air bag can still open up several
minutes after the ignition key is off (or even if the vehicle battery
is disconnected) because of a special energy reserve module.
Risk of electric shock.
• Do not exceed voltage limits between inputs as indicated in
the “Specifications” on page 2-2.
• Use extreme caution when working with circuits that have
greater than 60 volts DC or 24 volts AC.
Electric shock can cause injury.
Risk of explosion.
• Wear safety goggles and protective clothing, user and
bystander. Everyday eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
• Do not use this system in environments where explosive
vapor may collect, such as in below-ground pits, confined
areas, or areas that are less than 18 inches above the floor.
• Use this equipment in locations with mechanical
ventilation providing at least four air changes per hour.
• Flammable fuel and vapors can ignite.
• Do not smoke, strike a match, or cause a spark in the
vicinity of the battery. Battery gases can ignite.
• Avoid making accidental connection between battery
terminals. Do not place uninsulated metal tools on the
battery.
• When removing battery cables, remove ground cable first.
• Avoid sparks when connecting or disconnecting power
leads to battery.
• Be sure ignition is OFF, headlights and other accessories
are OFF and vehicle doors are closed before disconnecting
battery cables. This also helps prevent damage to on-board
computer systems.
• Always disconnect battery ground connections before
servicing electrical system components.
Explosion can cause injury.
! WARNING
Risk of poisoning.
• Use this equipment in locations with mechanical
ventilation providing at least four air changes per hour.
Engine exhaust contains odorless lethal gas.
• Route exhaust outside while testing with engine running.
Poisoning can result in death or serious injury.
Safety – ii • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Safety Precautions
Battery acid is a highly corrosive sulfuric acid.
!
• Wear safety goggles and protective gloves, user and
bystander. Everyday eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
• Make sure someone can hear you or is close enough to
provide aid when working near a battery.
• Have plenty of fresh water and soap nearby. If battery acid
contacts skin, clothing, or eyes, flush exposed area with
soap and water for 10 minutes.
• Seek medical help.
• Do not touch eyes while working near battery.
Battery acid can burn eyes and skin.
! WARNING
Risk of fire.
• Wear safety goggles and protective clothing, user and
bystander. Everyday eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
• Do not position head directly over or in front of throttle
body. Do not pour gasoline down throttle body when
cranking or running engine, when working with fuel
delivery systems or any open fuel line. Engine backfire can
occur when air cleaner is out of position.
• Do not use fuel injector cleaning solvents when performing
diagnostic testing.
• Keep cigarettes, sparks, open flame and other sources of
ignition away from vehicle.
• Keep a dry chemical (Class B) fire extinguisher rated for
gasoline, chemical and electrical fires in work area.
Fire can cause death or serious injury.
Risk of flying particles.
Wear safety goggles while using electrical equipment.
Electrical equipment or rotating engine parts can cause
flying particles.
Flying particles can cause eye injury.
Risk of burns.
Batteries can produce a short-circuit current high enough to
weld jewelry to metal. Remove jewelry such as rings,
bracelets and watches before working near batteries.
Short circuits can cause injury.
! WARNING
Risk of burns.
• Do not remove radiator cap unless engine is cold.
Pressurized engine coolant may be hot.
• Do not touch hot exhaust systems, manifolds, engines,
radiators, sample probe, etc.
• Wear insulated gloves when handling hot engine
components.
• Tester leads can become hot after extended testing in close
proximity to manifolds etc.
Hot components can cause injury.
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Safety – iii
Safety Precautions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
!
Risk of expelling fuel, oil vapors, hot steam, hot toxic exhaust
gases, acid, refrigerant and other debris.
• Wear safety goggles and protective clothing, user and
bystander. Everyday eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
• Engine systems can malfunction expelling fuel, oil vapors,
hot steam, hot toxic exhaust gases, acid, refrigerant and
other debris.
Fuel, oil vapors, hot steam, hot toxic exhaust gases, acid,
refrigerant and other debris can cause serious injury.
The engine compartment contains electrical connections and hot
or moving parts.
• Keep yourself, test leads, clothing and other objects clear
of electrical connections and hot or moving engine parts.
• Do not wear watches, rings, or loose fitting clothing when
working in an engine compartment.
• Do not place test equipment or tools on fenders or other
places in the engine compartment.
• Barriers are recommended to help identify danger zones in
test area.
• Prevent personnel from walking through immediate test
area.
Contact with electrical connections and hot or moving parts can
cause injury.
Risk of injury.
• This equipment should be operated by qualified personnel
only.
• Use this equipment only as described in this manual. Use
only the manufacturer’s recommended attachments.
• Do not operate equipment with a damaged cord or if the
equipment has been dropped or damaged, until it has been
examined by a qualified service representative.
Operation of this equipment by anyone other than qualified
personnel may result in injury.
! WARNING
PRNDL2
Risk of unexpected vehicle movement.
• Block drive wheels before performing a test with engine
running.
• Unless instructed otherwise, set parking brake and put
gear selector in neutral for standard transmissions or park
for automatic transmissions.
• If vehicle has an automatic parking brake release,
disconnect release mechanism for testing and reconnect
when testing is completed.
• Do not leave a running engine unattended.
A moving vehicle can cause injury.
Safety – iv • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Safety Precautions
! CAUTION
! CAUTION
Risk of equipment or circuit damage.
• Unless specifically directed by the manufacturer, make
sure the ignition is OFF before connecting or
disconnecting connectors or any vehicle electrical
terminals.
• Do not create a short between battery terminals with a
jumper wire or tools.
Improper equipment use can cause equipment or circuit
damage.
Misdiagnosis may lead to incorrect or improper repair and/or
adjustment.
Do not rely on erratic, questionable, or obviously erroneous
test information or results. If test information or results are
erratic, questionable, or obviously erroneous, make sure
that all connections and data entry information are correct
and that the test procedure was performed correctly. If test
information or results are still suspicious, do not use them
for diagnosis.
Improper repair and/or adjustment may cause vehicle or
equipment damage or unsafe operation.
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Safety – v
!
Safety Precautions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
!
Safety – vi • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
ToC
Table of Contents
Safety Precautions
Part 1 – Getting Started
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
On-Board Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Diagnostic Link Connectors (DLC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
OBD II (J1962) DLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Ford Historic (OBD I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
GM Historic (OBD I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Chrysler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Diagnostic Trouble Codes (DTCs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Vehicle Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Part 2 – Using The Tool
Tool Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Scan Tool Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Tool Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Tool Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Tool Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Vehicle Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Part 3 – Global OBD II Diagnostics
I/M Readiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Read Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Erase Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
View Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
View Freeze Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Review Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 3-1
. 3-4
. 3-5
. 3-6
. 3-7
. 3-8
Part 4 – GM Historic Diagnostics
Read Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Erase Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
View Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Review Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Field Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 4-1
. 4-2
. 4-3
. 4-4
. 4-4
ToC
Part 5 – Ford Historic Diagnostics
Read KOEO Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Read KOER Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Fast or Slow Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Computed Timing Check (1984-1991 EEC-IV Vehicles) . . . . . . . . . . . . 5-5
Review Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Erase Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
EEC-IV Erase Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
MECS Erase Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Wiggle Test (EEC-IV Vehicles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Output Switch Test (EEC-IV Vehicles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
DCL Data Functions (EEC-IV Vehicles) . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Cyl Balance Test (EEC-IV Vehicles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
IVSC-Speed Ctrl (EEC-IV Vehicles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
STAR Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Part 6 – Chrysler Historic Diagnostics
Read Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Erase Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
View Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idle Speed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Review Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 6-1
. 6-3
. 6-4
. 6-5
. 6-6
. 6-7
. 6-7
. 6-8
Part 7 – Help & Troubleshooting
How to Use On-Line Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Tool Does Not Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Using Non-OBD II Adapter Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Using J1962 (OBD II) or Chrysler LH Adapter Cable . . . . . . . . . . . . . . . 7-2
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Vehicle Communication Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Operating Error or Erroneous Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Tool Self-Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Display Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Keyboard Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Memory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Program Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Appendix A – Data Link Connectors
Appendix B – Glossary
3DUW *HWWLQJ6WDUWHG
The SUPER AutoScanner™ was developed by experts in the automotive service
industry to help diagnose vehicles and assist in troubleshooting procedures. The
tool will monitor vehicle events and to read codes from the computer’s memory
to pinpoint problem areas.
All information, illustrations and specifications contained in this manual are based
on the latest information available from industry sources at the time of publication.
No warranty (expressed or implied) can be made for its accuracy or
completeness, nor is any responsibility assumed by the manufacturer or anyone
connected with it for loss or damages suffered through reliance on any information
contained in this manual or misuse of accompanying product. The manufacturer
reserves the right to make changes at any time to this manual or accompanying
product without obligation to notify any person or organization of such changes.
MANUAL CONVENTIONS
Th is ma nu al p ro v id es i nst r uct io ns t o set up and use y our S U PE R
AUTOSCANNER ™. A glossary and application charts provide valuable
reference material. Some of the information shown in text or illustrations is
obtained using optional equipment. A Sales Representative can help determine
option availability. This section contains a list of conventions used.
Safety Messages
Refer to “Safety Precautions” at the beginning of this manual.
Check Note
A check note provides additional information about the subject in the preceding
paragraph.
Example:
✓
Make sure the printer is turned on, on-line and connected.
Tips and Lists
Tips and lists provide information that applies to specific systems and processes.
Each tip is introduced by this icon ❒ for easy identification.
Example:
❒ Use the 83'2:1 arrow keys to move up/down through the display or
move the cursor ([) to a selectable item.
Equipment Damage
Situations arise during testing that could damage the vehicle or the test
equipment. The word IMPORTANT signals these situations.
Example:
Screens may differ slightly for vehicle make and year.
Functions and Selections
Diagnostic and tool functions performed by the tool are highlighted in bold.
Example:
Select Read Codes and press (17(5.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1–1
1
Getting Started • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Menus
The menus on the tool display are referenced in the procedures and are
highlighted in bold-italic text.
Example:
Press the (17(5 key to return to theGM Function List.
Questions and Responses
1
Messages and user responses are CAPITALIZED.
Example:
Selecting NO displays a COMMAND CANCELLED message prompting you to
press (17(5 to continue back to the OBDII Function List.
Manual References
Used to reference other sections of the manual. References include the “Title”
and page number (section-page).
Example:
Complete the following list using the function “Tool Information” on page 2-5.
Screens
The screens are presented as examples and may change as the software is
updated.
Example:
!3;@!7@G
^
[ *7:;5>7;39@AE;E
(AA>'7FGB
]
(AA>'7>8W(7EFE
ON-BOARD DIAGNOSTICS
The original on-board diagnostics (OBD I) lacked consistency in communication
and interface while allowing different interpretations amongst vehicle
manufacturers. Ford used several types of engine control computers, Chrysler
used several types of data link connectors and GM varied the trouble codes and
communication protocols from year-to-year.
The following tables highlight changes for GM, Ford, and Chrysler. If this seems
confusing; don’t worry. Your tool makes it easy. Based on the VIN information
selected during Scan Tool setup, the processor is automatically recognized. All
you have to do is choose the correct adapter cable and jumper wires (if
necessary). Details on adapter cables and jumper wires may be found in
“Diagnostic Link Connectors (DLC)” on page 1-4.
GM On-Board Diagnostics
System
OBD I Control Module
OBD II Control Module
Years
Description
Most vehicles used the 12-pin ALDL (Assembly Line Data Link)
located under the dash on the driver side. Some 94-95 vehicles
1981–1995
used the 16-pin OBD II (J1962) data link connector (DLC), but
use the Historical application software. Refer to the vehicle’s
Vehicle Emission Control Information label.
1994*-Present Complies with OBD II regulations and uses the J1962 DLC.
* OBD II system used in certain 1994-1995 vehicles equipped with a 2.2L, 2.3L, 3.8L, 4.3L or 5.7L engines.
1 – 2• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Getting Started
Ford On-Board Diagnostics
System
Long Name
MCU
Microprocessor Control Unit
EEC-IV
MECS
EEC-V
PTEC
Years
Electronic Engine Control,
Fourth generation
Mazda Electronic Control
System
Electronic Engine Control,
Fifth generation
Powertrain Electronic Controller
Description
Used in police vehicles, containing carbureted
1980 –1991
engines. Uses the MCU DLC.
Most Ford vehicles equipped with North American
1984 –1995
engines. Uses the EEC-IV DLC.
Vehicles equipped with Mazda-sourced engines.
1988 –1995
Uses MECS 6-pin and 17-pin DLCs.
Complies with OBD II regulations and uses the
1994* – present
OBD II J1962 DLC.
Complies with OBD II regulations and uses the
2000 – present
OBD II J1962 DLC.
* EEC-V OBD II system used in 1994-1995 vehicles equipped with a 3.8L or 4.6L engine.
Chrysler On-Board Diagnostics
System
Long Name
Years
Description
SMEC
Single Module
Engine Controller
SBEC
Single Board Engine
1989*–1995
Controller
Used two types of DLCs: a 6-pin SCI and a 6-pin LH series.
The first to allow a tool to reset the EMR light on trucks.
OBD II
PCM
OBD II Powertrain
Control Module
1995**– present
Complies with OBD II regulations and uses the OBD II
J1962 DLC.
JTEC
Jeep/Truck Engine
Controller
1996– present
Complies with OBD II regulations and uses the OBD II
J1962 DLC.
The JTEC system is used on light-duty trucks and Jeeps
1989–1990
Used a 6-pin Serial Communication Interface (SCI) DLC
and has bidirectional capability.
* In 1989, the SBEC system was installed in selected vehicles with 3.0L V6 engines.
** Some vehicles in 1995 were equipped with the OBD II PCM.
OBD II stands for On-Board Diagnostics version II. OBD II is a system that the
Society of Automotive Engineers (SAE) developed to standardize automotive
electronic diagnosis. Technicians now can use the same tool to test any OBD II
compliant vehicles without special adapters. The established SAE guidelines are:
• a universal diagnostic test connector, called the data link connector (DLC),
with dedicated pin assignments.
• a standardized location for the DLC, visible under the dash on the driver’s
side.
• a standardized list of diagnostic trouble codes (DTCs) used by all
manufacturers.
• a standardized list of parameter identification (PID) data used by all
manufacturers.
• the ability of the vehicle system to record a freeze frame of the operating
conditions when a fault occurs.
• expanded diagnostic capabilities that records a code whenever a condition
occurs that effects vehicle emissions.
• the ability to clear stored codes from vehicle memory with the scan tool.
In addition, SAE has published hundreds of pages of text defining a standard
communications protocol that establishes the hardware, software, and circuit
parameters of OBD II systems. Unfortunately, vehicle manufacturers have
different interpretations of this standard communications protocol. As a result, the
generic OBD II communications scheme used will vary, depending on the vehicle.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1–3
1
Getting Started • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
1
SAE publishes recommendations, not laws, but the Environmental Protection
Agency (EPA) and California Air Resources Board (CARB) made many of SAE’s
recommendations legal requirements that vehicle manufacturers were required
to phase in over a three-year period. Beginning in 1994, vehicles with a new
engine management computer – about 10% of each manufacturers fleet – were
supposed to comply with OBD II standards. For 1995, OBD II systems were to
appear on about 40% of the new vehicles sold in the USA. Some of the 1994-1995
OBD II systems were not fully compliant, so the Government granted waivers to
give manufacturers time to fine-tune their systems. Beginning in 1996, most of the
new vehicles sold in the USA were fully OBD II compliant.
DIAGNOSTIC LINK CONNECTORS (DLC)
The Data Link Connector (DLC) allows the scan tool to communicate with the
vehicle’s computer(s). Before OBD II, manufacturers used different data link
connectors to communicate with the vehicle. The proper DLC adapter cable must
be used to connect the tool to the vehicle. Also, the vehicle’s DLC may be found
in several different places and have many different configurations. The following
describes the DLCs used by Ford, GM and Chrysler. The DLC location and types
for domestic vehicles can be looked up in the charts in “Appendix A – Data Link
Connectors” .
OBD II (J1962) DLC
Beginning in 1996, vehicles sold in the
United States use the J1962 DLC, a
term taken from a physical and
electrical specification number
assigned by SAE (J1962). OBD II
defines the physical and electrical
specification for the DLC. The DLC
should be located under the dashboard on the driver side of the vehicle. If the DLC
is not located under the dashboard as stated, a decal describing its location
should be attached to the dashboard in the area the DLC should have been
located.
Because the OBD II J1962 connector has power and ground, you only need a
single cable connection to the tool for both power and tool communications.
Attach the OBD II adapter cable to the extender cable, both supplied with the tool,
to connect the tool. Certain pins in the connector are reserved.
1 - Manufacturer Reserved
2 - J1850 Bus+
3 - Manufacturer Reserved
4 - Chassis Ground
5 - Signal Ground
6 - CAN High, J-2284
7 - K Line, ISO 9141-2 & ISO/DIS 14230-4
8 - Manufacturer Reserved
9 - Manufacturer Reserved
10 - J1850 Bus
11 - Manufacturer Reserved
12 - Manufacturer Reserved
13 14 15 16 -
1
8
9
16
Manufacturer Reserved
CAN Low, J-2284
L Line, ISO 9141-2 & ISO/DIS 14230-4
Battery Power
1 – 4• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Getting Started
Ford Historic (OBD I)
Since 1984, Ford used several different types of powertrain control modules
(PCM). Refer to “On-Board Diagnostics” on page 1-2. With the proper adapter
cables, your tool will be able to read these systems as well.
IMPORTANT
Use the Battery Power cable to provide 12V to the tool for all
systems.
EEC-IV System
Vehicle DLC
Cable Adapter
The EEC-IV computer system
uses a large six-sided
connector and a pigtail
connector.
MCU System
EEC-IV/MCU
EEC-IV/MCU
P/N CP9128
To Scan
Tool
1
STI Pigtail
EEC-IV only
The MCU computer system
u s e s t h e s a m e s i x - s id e d
connector, but NOT the pigtail
connector. Leave the pigtail
unattached.
MECS (Mazda Electronic Control System)
MECS vehicles (1988 –1995) use either a 6-pin (with pigtail) or a 17-pin DLC. The
6-pin MECS adapter cable and jumper wires (P/N 9131) are used to connect the
tool to both DLCs. Both adapter cables are also available through your dealer.
6-Pin MECS.
Cable Adapter
Vehicle DLC
6-Pin MECS
P/N CP9131
6-Pin MECS
To Scan
Tool
P igtail
6
4 5
1 2 3
STI Pigtail
Clip to good
Vehicle ground
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1–5
Getting Started • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
17-Pin MECS
Use the 6-Pin
MECS and the
jumper wires.
Vehicle DLC
Adapter Cable
17-Pin MECS
6-Pin MECS
To
Scan Tool
P/N CP9128
STI Pigtail
1
5
2
4
1
6
3
STO
Clip to good
vehicle ground
MECS Ford Probe
IMPORTANT
Certain Probes have a WHITE TACH CONNECTOR located very
close to the 6-pin Self-Test connector and bundled in the same
wiring harness. This is NOT the STI (Self Test Input) Pigtail.
Connect the pigtail to
the BLACK STI
connector located
farther back on the wire
harness. If the tool is
connected to the
WHITE
Ta c h
c o n n e c t o r, s e r i o u s
damage will result and
may void war r ant y.
Refer to the illustration.
Cable Adapter
Vehicle DLC
6-Pin MECS
P/N CP9128
6-Pin MECS
STI
Pigtail
To
Scan
Tool
BLACK STI
Connector
4
1
5
2
Windshield
Wiper
Motor
6
3
6-Pin MECS
6-Pin MECS
WHITE
Tach
Connector
DO NOT USE!
Clip to good
vehicle ground
GM Historic (OBD I)
Prior to1996, most GM vehicles used the standard 12-pin Assembly Line
Diagnostic Link (ALDL). Use the GM ALDL cable kit (p/n CP9127) which includes
the ALDL adapter and cigarette lighter power cable for these vehicles. In 1994 &
1995, certain GM vehicles used the J1962 DLC.
IMPORTANT
Use the Battery Power cable to provide 12V to the tool.
1 – 6• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Getting Started
ALDL
ALDL (P/N CP9127)
The ALDL DLCs are usually located under
the dashboard on the driver’s side.
F E D C B A
G H J K L M
Corvettes & Fieros:
Sometimes, the DLC is located in the center console behind the ashtray. Refer to
vehicle service manual for exact location. It may be in full view, or it may be
recessed behind a panel. An opening in the panel should allow access to the
recessed connector.
Chrysler
IMPORTANT
Use the Battery Power cable to provide 12V to the tool for both
systems.
SCI
SCI (P/N CP9129)
The SCI (serial communications interface) DLC is a 6-pin
connector located in the engine compartment. The
adapter cable to be used on these vehicles is supplied with
the tool. This cable is labeled CHRY on the 15 pin DB style
connector and SCI on the vehicle end.
LH-series
LH (P/N CP9130)
The LH-series data link connector is used on LH platform
vehicles. The LH style DLC is a small, blue, rectangular
6-pin connector located in the passenger compartment
below the dashboard to the right of the steering column.
The LH Adapter Cable (P/N CP9130) is optional and must
be purchased separately.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1–7
1
Getting Started • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
DIAGNOSTIC TROUBLE CODES (DTCS)
Diagnostic Trouble Codes (DTCs) consist of a five-digit alphanumeric code. The
DTC format and general code types are shown below. When the on-board
computer recognizes and identifies a problem, a DTC for that fault is stored in
memory. These codes are intended to help you determine the root cause of a
problem
.
1
Bx - Body
Cx - Chassis
Px - Powertrain
Ux - Network Comm.
x = 0, 1, 2 or 3
P0 1 0 1
Specific Fault Designation
Vehicle Specific System
Example:
P0101 - Mass or Volume Air Flow Circuit Range/Performance Problem
Powertrain Codes
P0xxx - Generic (SAE)
P1xxx - Manufacturer Specific
P2xxx - Generic (SAE)
P30xx-P33xx - Manufacturer Specific
P34xx-P39xx - Generic (SAE)
Chassis Codes
C0xxx - Generic (SAE)
C1xxx - Manufacturer Specific
C2xxx - Manufacturer Specific
C3xxx - Generic (SAE)
Body Codes
B0xxx - Generic (SAE)
B1xxx - Manufacturer Specific
B2xxx - Manufacturer Specific
B3xxx - Generic (SAE)
Network Communication Codes
U0xxx - Generic (SAE)
U1xxx - Manufacturer Specific
U2xxx - Manufacturer Specific
U3xxx - Generic (SAE)
J2012 and ISO 15031-6 are standards for all DTCs, established by the SAE,
International Organization for Standardization (ISO) and other governing bodies.
Codes and the definitions assigned by this specification are known as Generic
OBD II codes. OBD II requires compliance of this standard, and has made it a
standard for all cars, light trucks, APVs, MPVs, and SUVs sold in the U.S. Codes
not reserved by the SAE are reserved for the manufacturer and referred to as
Manufacturer Specific.
1 – 8• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Getting Started
VEHICLE SERVICE INFORMATION
The following is a list of publishers who have manuals containing electronic
engine control diagnostic information. Some manuals may be available at auto
parts stores or your local public library. For others, you need to write for availability
and pricing, specifying the make, model and year of your vehicle.
Chilton Book Company
Chilton Way
Radnor, PA 19089
Haynes Publications
861 Lawrence Drive
Newbury Park, CA 91320
Cordura Publications
Mitchell Manuals, Inc.
Post Office Box 26260
San Diego, CA 92126
Motoríst Auto Repair Manual
Hearst Company
250 W. 55th Street
New York, NY 10019
General Motors Corporation:
Buick, Cadillac, Chevrolet, GEO, GMC,
Oldsmobile, & Pontiac
Saturn:
Adistra Corporation
c/o Saturn Publications
101 Union St.
Post Office Box 1000
Plymouth, MI 48170
Ford Motor Company:
Ford, Lincoln, & Mercury
Ford Publication Department
Helm Incorporated
Post Office Box 07150
Detroit, MI 48207
Chrysler Corporation:
Chrysler, Plymouth, & Dodge
Chrysler Motors Service Training
26001 Lawrence Avenue
Center Line, MI 48015
Helm Incorporated
Post Office Box 07130
Detroit, MI 48207
Suitable manuals have titles such as:
• “Electronic Engine Controls”
• “Fuel Injection and Feedback Carburetors”
• “Fuel Injection and Electronic Engine Controls”
• “Emissions Control Manual”
... or similar titles
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1–9
1
Getting Started • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Getting Started Notes
1
1 – 10 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
3DUW 8VLQJ7KH7RRO
TOOL DESCRIPTION
DB15 Male Connector – provides connection for vehicle interface and for a serial
port via the RS232 Adapter (CP9119)
12V Power Jack– provides power connection.
!
"
5
$
%
&
/
LCD Display – 4 line x 20 character.
+(/3 key – accesses the Help function.
/()75,*+7 arrows – Select responses and moves cursor.
212)) key – turns power ON/OFF when not connected to vehicle.
(17(5 key – selects displayed items.
83'2:1 arrows – moves the selection pointer ([) and scrolls UP or DOWN.
%$&. key – go back to previous screens, redo selections or correct mistake.
Battery compartment
Front of Tool
!
$
"
%
#
8
/
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2–1
2
Using The Tool • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Specifications
Display: LCD, 4 line, 20 column
Operating Temperature: 0 to 50°C (-32 to 122°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)
Internal Power: 9V cell (Type 6LR61)
External Power: 10.0 to 15.5 Volts
✓
Most vehicle control modules require at least 8.0 V to operate properly.
Power Dissipation: 3.5 Watts maximum
Dimensions:
Height
Width
1.563"
40 mm
2
4.5"
114 mm
Length
9.125”
232 mm
Weight: 33.1oz (918 g)
Accessories
CP9145
Standard 8 ft Extender Cable . . . . . . . . . . . . . Included
Battery Power Cable . . . . . . . . . . . . . . . . . . . . Optional
– includes cigarette lighter adapter
– includes CP9118 Battery Clip Adapter
Adapter Cables:
– Standard OBD II (J1962) cable . . . . . . . . . . Included
– CP9127 GM ALDL cable kit . . . . . . . . . . . . Optional
– CP9128 Ford EEC-IV/MCU cable kit . . . . . Optional
– CP9129 Chrysler SCI cable kit . . . . . . . . . . Optional
– CP9130 Chrysler LH cable kit . . . . . . . . . . Optional
– CP9131 Ford MECS cable kit . . . . . . . . . . . Optional
CP9119 RS232 Adapter . . . . . . . . . . . . . . . . . . Optional
CP9150
Included
Included
Included
Included
Included
Included
Optional
Optional
Optional
Optional / Replacement Parts are available from the following:
• dealer where you originally purchased your tool.
• manufacturer contact customer service at 1-800-228-7667 (8:00 – 6:00 EST
Monday – Friday) or send an email to tech_support@actron.com.
Display
The tool uses a 4 line by 20 character, Liquid Crystal Display (LCD). The large
viewing area displays Help messages, instructions, and diagnostic information.
Five characters help you navigate and
#G@5F;A@ ;EF ^
operate the tool:
^ appears in upper right corner of display
to indicate Help is available.
[ identifies the selection.
] indicates additional information is
[ S&736(RA67ES \
SD3E7(RA67ES ]
S*;7I3F3 available on the next screen.
\ indicates additional information is available on the previous screen.
Low battery symbol will appear in bottom right-hand corner of the screen at $V!A6O/
power-up if the internal batteries need !$/&#
replacement or are not installed.
;D5G;F AI@BGF
V
identifies Pending DTCs in the Global
OBD II Read Codes function.
]
2 – 2• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Using The Tool
Keyboard
The tool’s software is designed for ease in operating and navigating through
menus. Do not use solvents such as alcohol to clean the keypad or display. Use
a mild nonabrasive detergent and a soft cotton cloth. Do not soak the keypad as
water might find its way inside the tool.
Power
✓
Refer to “Tool Does Not Power Up” on page 7-1 if you encounter problems.
Internal Battery Power
The tool contains a 9V battery that provides power for remote printing and tool
programing. Press and hold down the 212)) key for at least one second to turn
ON the tool. Each time the tool is powered up, the voltage of the batteries is
checked. If the voltage is low, the Low Battery Symbol () displays on the screen.
Replace batteries using the instructions provided in “Battery Replacement” on
page 7-4.
Power must be provided through the data
link connector or 12V power jack. A
mes s ag e di spl ays i f p ow er is n ot
connected.
✓
-AG!GEF$>G9(AA>
@FA*7:;5>7 AD(:;E#B7D3F;A@
$D7EE"(&FAA@F
If tool is stored for long periods, remove the batteries to prevent electrolyte
leakage from damaging the battery compartment.
✓
To conserve the battery, the scan tool turns Off after 2 minutes.
Vehicle Power
When using the OBD II J1962 or Chrysler LH adapter cables, the power to the tool
comes from vehicle Data Link Connector (DLC). The other adapter cables do not
provide power to the tool. In these cases, power can be provided from the
cigarette lighter, an accessory plug, or the vehicle battery using battery clip
adapters. Refer to “Diagnostic Link Connectors (DLC)” on page 1-4.
Some vehicle cigarette lighters are not powered when the ignition is in the OFF
position. Therefore, you may wish to use battery clip adapters.
CP9118 Battery Clip Adapter (optional)
Cigarette Lighter Adapter
AC Power Adapter
An AC power adapter can be used to power the tool.
The tool is equipped to accept any 110 Vac - 12 Vdc
wall adapter with the following specifications:
•
•
•
•
GND
12 V
300 mA minimum current unregulated wall power adapter.
Adapter Dimensions:5.5 mm Outside Diameter
2.5 mm Inside Diameter
The Inside Tip is positive (+).
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2–3
2
Using The Tool • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
SCAN TOOL OPERATION
To diagnose a vehicle, connect the DLC and power adapter (if applicable) to the
scan tool. Refer to “Diagnostic Link Connectors (DLC)” on page 1-4 of Getting
Started.
If you just want to power up the tool to do its self-tests, code lookup, or review data
from the last vehicle tested, then you do not need to attach the cable to the Data
Link Connector. The internal battery provides power for this.
Tool Power-Up
Connect the tool to the vehicle using the appropriate DLC and power connections.
2
When the tool powers up, a series of
messages display on the screen
beginning with a “Welcome” screen and
ending with a “Key Button Help” screen. If
you wish to r evie w th e k ey b utt on
definitions, push the +(/3 key;
otherwise, press (17(5 to continue.
+7>5A?7(A(:7
5FDA@
'GB7DGFA'53@@7D
XXX
Tool Navigation
User Interface
All menu and lists are intuitive and operate the same way.
❒ Use the 83'2:1 arrow keys to move up/down through the display or
move the cursor ([) to a selectable item.
❒ Press the (17(5 key to select the function or item.
❒ To return to previous screens, press the %$&. key.
❒ This information can be viewed on the tool by pressing the +(/3 key after
powering up the tool.
If a list or message contains more than four lines, an arrow icon displays on the
last column of the display to indicate the scrolling direction available: up (\) or
down (]). Use the 83'2:1 arrow keys to move line-by-line through the display.
When the bottom of the list is reached, then only the\ displays. At the top of the
list, only the ] displays.
User Responses
The tool may ask a question which requires
a YES or NO response — brackets ( )
enclose the default one. To accept the
default choice, press the (17(5 key. To
change the answer, use the /()75,*+7
arrow keys to move the brackets to another
response and press (17(5.
Tool Setup
Tool Setup allows you to change the
measurement units and display tool
information. The settings remain until the
internal battery becomes discharged.
*;7I @EFDG5F;A@E
AD D73F;@9 GEFA?
3F3 ;EF
-7E
"A
!3;@!7@G
^
[ *7:;5>7;39@AE;E
(AA>'7FGB
]
(AA>'7>8W(7EF
2 – 4• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Using The Tool
Measurement Units
To change the measurement units, use
the 83'2:1 arrow keys to select
English/Metric and press (17(5.
In the Measurement Units menu, select
En gli sh or Metr ic and th en p ress
(17(5. English is the default.
'7FGB (AA>
[ S@9>;E:/!7FD;5
S(AA>@8AD?3F;A@
Press (17(5 again to return to the Setup Tool menu.
Tool Information
This function allows you to view specific tool information that may be needed
when contacting customer service. Select Tool Information with the 83'2:1
arrow keys and press (17(5.
The information shown to the right displays
on the screen. Use the 83'2:1 arrow
keys to view all the lines.
Press the %$&. or (17(5 key to return to
the Setup Tool menu.
✓
(AA> @8AD?3F;A@
[ '7D;3> "A '+ + *7D
AAF *7D
$DA6 A3D6 GD@ 3F7 //
GD@ A5
Write this information in the space provided on the inside of the front cover.
Vehicle Selection
When the tool powers up, the “Key Button Help” screen is followed by a Main
Menu screen.
Pick Vehicle Diagnosis to begin Vehicle
Selection.
!3;@!7@G
^
[ *7:;5>7;39@AE;E
(AA>'7FGB
]
(AA>'7>8W(7EF
If there is a previous vehicle present, the tool displays that vehicle. You can
choose the last vehicle selected or setup for a new vehicle. The tool retains all data
retrieved from the last vehicle selected until any of the following occurs:
❒
❒
❒
❒
A new vehicle is selected
Battery is dead or disconnected
Tool is flash programmed to update software
The last vehicle selected is kept but you choose Erase Data
You can either keep the previously
"7A@
selected vehicle or change it. If changing
X
''#
the vehicle, press the 5,*+7 arrow key
and press (17(5. Otherwise, press
(17(5 to keep the current one.
$"
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2–5
2
Using The Tool • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Keep Current Vehicle
The next screen asks if you want to erase
the stored data. The default is NO.
After pressing (17(5, the function list
displays.
D3E7>>'FAD76
3F3AD'7>75F76
*7:;5>7
-'"#
Changing the Vehicle
Changing vehicles erases all data stored
in the tool. The default is YES.
Press (17(5 to continue.
2
$;5=;@9"7I*7:;5>7
D3E7E>>'FAD76
3F3XA@F;@G7
-'"#
Four Vehicle Options are available: General Motors, Ford, Chrysler and Global
OBD II. Global OBD II does not require additional information and takes you
directly to the function list. The other three require additional information so that
the tool and vehicle can communicate. For example, select GENERAL MOTORS.
The menus provide a list of
choices and reference the
vehicle’s VIN where
app licab le. T he VI N is
visible from outside the
vehicle by looking through
the base of the front
windshield at the top of the
dashboard on the driver’s
side.
Because
manufacturers use different
VIN schemes, the tool will
indicate which digit of the
VIN to locate for information
such as Year, Make and
Engine.
Use 83'2:1 arrow keys
to move through the list.
If you make a mistake,
press the %$&. key to
return to the previous
menu.
At the last screen, press
(17(5.
'7>75F!3@G835FGD7D
[ 7@7D3>!AFADE
AD6
]
:DKE>7D
'7>75F*7:;5>7(KB7
[ 3D
(DG5=
'7>75F-73D*"
(
\
[ '
]
&
'7>75F!3=7*"
#>6E?A4;>7
\
[ G;5=
]
36;>>35
'7>75F!A67>
$3D=H7@G7
\
[ &793>
]
&7H;7D3
'7>75F@9;@7*">
[ X '
!X '(
!X ')(#W'
&793>
X '
I f a m es s a g e di s p l a y s , f o l l o w t h e
instructions then press (17(5.
✓
Vehicles manufactured from 2000 to
present automatically use Global OBD
II Diagnostics even if GM, Ford or
Chrysler was selected.
$"
(GD@7K#88
AD'75A@6E
(:7@(GD@7K#@
(:7@$D7EE"(&
2 – 6• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
3DUW *OREDO2%',,'LDJQRVWLFV
This section covers all OBD II compliant vehicles. Non OBD II vehicles
manufactured by GM, Ford and Chrysler are covered in Parts 4, 5 and 6,
respectively.
✓
If an Operating Error message displays, refer to “Error Messages” on
page 7-3 and check the following :
❒ make sure the OBD II connector is securely attached, and the ignition key
✓
is ON. Cycle the ignition key to OFF for 10 seconds, then ON. This may be
required to reset the computer. If required, select YES to try again.
❒ the vehicle fails to link because it does not support OBD II diagnostics.
Check the emissions label on the vehicle for OBD II compliance.
On the initial link to the vehicle, the scan tool checks the status of the
I/M Monitors and displays it regardless of the function selected.
I/M READINESS
The I/M Readiness (Inspection and Maintenance) function is used to
check the operations of the Emission System on OBDII vehicles. I/M
Readiness is an excellent function to use prior to having a vehicle
inspected for compliance to a state emissions program.
During normal driving conditions, the vehicle’s computer scans the
emission system. After a specific amount of drive time (depending on
vehicle), the computer’s "monitors" will decide if the vehicles emission
system is working correctly or not. When the "monitors" record:
• "OK" and check engine light has not come on - vehicle will likely
pass emissions test and the system being checked is working
properly.
• "INC" (Incomplete) - vehicle was not driven enough and needs to be
driven until monitors record "READY."
• "N/A" - vehicle does not support that monitor.
Some states MAY NOT require all monitors to be listed as “READY”
to pass the emissions test. Check with state testing site for exact
requirements. All states will fail a vehicle who has the "check engine
light" lit at time of test.
Depending on vehicle, disconnecting or a discharged battery may
erase trouble codes and clear status monitors.
The vehicle may support more than one type of I/M Readiness. The first type
shows the status of the monitors since the DTCs were last erased. They are
displayed under the heading SINCE DTCs CLEARED. The second type
shows the status of the monitors since the start of the current drive cycle, and
are displayed under the heading THIS DRIVING CYCLE. If the monitors are
not supported for THIS DRIVING CYCLE, then the scan tool only shows
monitors for SINCE DTCs CLEARED with no header on line 1.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3–1
3
Global OBD II Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
3.1 To Operate I/M Readiness:
1.Connect Scan Tool to
vehicle to connector
under driver-side
dashboard.
3
If connector is not located
under driver side of
dashboard a label should tell
location of connector.
2.Place key in ignition and start
vehicle.
3.Using ▲ (UP) or ▼ (DOWN)
arrows on Scan Tool select I/M
Readiness and press ENTER.
#
G
[ A@ ;E
S/ @5F;
&7 S&7!
;@ EF^
3636
SD3E
A67E7E
7A
67E]
4.Use ▲ (UP) or ▼ (DOWN)
arrows on Scan Tool to view
status of the following
monitors.
3–2 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Global OBD II Diagnostics
•
Abbreviated Name
Expanded Name
- Misfire Monitor
Misfire Monitor
- Fuel System Mon
Fuel System Monitor
- Com Component
Comprehensive Components Monitor
- Catalyst Mon
Catalyst Monitor
- Htd Catalyst
Heated Catalyst Monitor
- Evap System Mon
Evaporative System Monitor
- Sec Air System
Secondary Air System Monitor
- A/C Refrig Mon
Air Conditioning Refrigerant Monitor
- Oxygen Sens Mon
Oxygen Sensor Monitor
- Oxygen Sens Htr
Oxygen Heater Sensor Monitor
- EGR System Mon
Exhaust Gas Recirculation System Monitor 3
5.Press BACK key on Scan Tool to
return to Main Menu.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3–3
Global OBD II Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
READ CODES
The Read Codes function retrieves DTCs from the vehicle’s computer module(s).
This function can be performed with the KOEO or KOER. There are two types of
codes, Malfunction Indicator Lamp (MIL) codes and Pending codes.
• MIL Codes: These codes cause the computer to illuminate the MIL when an
emission related or driveability fault occurs. The MIL is also known as the
“service Engine Soon” or “Check Engine Lamp”. MIL codes remain in the
vehicle’s memory until the fault is repaired.
• Pending Codes: These codes are also referred as “continuous monitor” and
“maturing codes”. An intermittent fault will cause the computer to store a code
in memory. If the fault does not occur within 40 warm-up cycles, the code will
be cleared from memory. If the fault occurs a specific number of times, the
code will mature into a DTC and the MIL will turn on. If the DTC is a pending
code, then the icon ( V ) displays next to the DTC number.
3
Select Read Codes and press (17(5.
#G@5F;A@ ;EF ^
The Scan Tool retrieves the DTCs stored in
S/!&736;@7EE
the vehicle’s computer module(s).
[ S&736A67E
SD3E7A67E
]
The Scan Tool displays the DTCs or a message stating SYSTEM PASS: NO
CODES FOUND. Scroll down to view the DTCs or press the %$&. key to return
to the OBDII Function List.
'KEF7?$3EE
"A3G>FE7F75F76X
Write down the DTCs for reference and
then press %$&. to return to the OBD II
Function List. Note that the DTC P0107
is a pending one.
(EAG@6
)E7](A*;7I(E
+D;F7AI@A67E
AD&787D7@57
$V!A6O/
!$/&#
;D5G;F AI@BGF
]
3–4 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Global OBD II Diagnostics
ERASE CODES
The Erase Codes function deletes the DTCs from the vehicle’s computer
memory. It may also erase Freeze Frame, O2 Sensor Data, System Monitors, and
On-Board Monitor test results. Perform this function only after the systems have
been checked completely and DTCs have been documented. This function
should be performed with KOEO — Do not START engine.
After servicing the vehicle, delete the stored DTCs and verify no codes have been
reset. If DTCs return, the problem has not been corrected or other faults are
present.
✓
In addition to clearing DTCs, the Erase Codes function may also erase
Freeze Frame and I/M Readiness test results.
Select Erase Codes and press the
(17(5 key.
A message appears asking if you are
sure. Press the /()75,*+7 arrow keys
to move the brackets to the desired
response and press (17(5.
Selecting NO cancels the function. Press
(17(5 to return back to the OBDII
Function List.
Selecting YES displays a screen
prompting you to turn ignition KOEO,
press (17(5 key to continue.
A message confirming that the Erase
Codes command was successful
displays. Press (17(5 to return to the
OBDII Function List.
#G@5F;A@ ;EF ^
S/!&736;@7EE
S&736A67E
]
[ SD3E7A67E
D3E7;39@AEF;5
&7EG>FE3@6A67E
D7-AG'GD7
-7E"A
A??3@63@57>>76
$D7EE"(&(AA@F
A??3@6'7@F
$D7EE"(&(AA@F
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3–5
3
Global OBD II Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
VIEW DATA
The View Data function allows you to view the vehicle’s Parameter Identification
(PID) data in real time. As the computer monitors the vehicle, the information is
simultaneously transmitted to the scan tool. Apart from Read Codes, View Data
is the most useful diagnostic function for isolating the cause of a vehicle operation
problem. Viewing data is also used for observing sensor data and the status of
switches, solenoids, and relays.
Selec t View Data from the O BD II
Function List and press (17(5.
3
The scan tool asks the vehicle to provide
the global PIDs it supports and generates
a list.
The Select Data To View menu displays.
Select Display Data to view the PIDs or
Change Display Set to change the
number of lines displayed on the screen.
Selecting fewer lines provides faster
update rates. The default is four lines.
#G@5F;A@ ;EF ^
S&736A67E
\
SD3E7A67E ]
[ S*;7I3F3
*3>;63F;@9 $ !3B
$ A8 $>73E7 +3;F
'7>75F3F3(A*;7I^
[ ;EB>3K3F3
:3@97;EB>3K'7F
Press (17(5 to establish a communication link.
Multiple PIDs may be sent if the vehicle is equipped with more than one computer
module — Powertrain Control Module (PCM), Transmission Control Module
(TCM), etc. The scan tool identifies them by their identification names (ID)
assigned by the manufacturer (i.e. $40 or $1F).
If the Scan Tool receives multiple
responses for a P ID, such as MIL
STATUS, it displays the PID and with the
computer module ID blinking in
parentheses.
! '(()'ROS
! '(()'ROS
""R&$!SROS
""R&$!SROS
#"
#
]
Use the 83'2:1 arrow keys to move
through the list. Use the /()75,*+7 arrow keys to page up/down.
3–6 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Global OBD II Diagnostics
If one or more control modules stops
re spon din g, t he too l wi ll dis play a
message that it is not responding.
!A6G>7O;E@AF
&7EBA@6;@9XA@F;@G7
+;F:AGF;F
-7E"A
If No is selected, the Scan Tool attempts to reestablish communication with that
module. If you choose to continue, dashes will replace the module ID.
Press the %$&. key twice to return to the OBDII Function List. Pressing the
%$&. key once returns to the Select Data To View menu.
VIEW FREEZE DATA
When an emission-related fault occurs, certain vehicle conditions are recorded by
the on-board computer. This information is referred to as a Freeze Frame data.
The information is a “snapshot” of the operating conditions at the time of a fault.
This data can be overwritten by faults with a higher priority.
✓
If codes were erased, then freeze frame data may not be stored in vehicle
memory.
Select View Freeze Data from the OBDII Function List and press (17(5. The
scan tool generates a PID list before displaying the data.
# G@5F;A@ ;EF
^
SD3E7 A67E
\
S*;7I 3F3
]
[ S*;7I D77L7 3F3
Use the 83'2:1 arrow keys to move
through the list.
If more than one computer module
responds with freeze frame data, then the
frame number and module display on the
first line. Press the /()75,*+7 key to
change freeze frame data.
*3>;63F;@9 $ !3B
$ A8 $>73E7 +3;F
(&#) #$
' ( ($'RPS
X
#RPS
X]
## "( RAS
D3?7
(&#)
' (
!A6 O
#$
($'RPS
X]
#RPS
X
When done, press the %$&. key to return to the OBDII Function List.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3–7
3
Global OBD II Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
REVIEW DATA
The Review Data function allows you to review the information stored in the Scan
Tool’s memory. The scan tool does not require power from the vehicle to perform
this function. Internal battery power can be used.
Select Review Data from the OBDII
Function List and press (17(5.
# G@5F;A@ ;EF
^
S*;7I 3F3
\
S*;7I D77L7 3F3
[ S&7H;7I 3F3
In the Review Data screen, use the
83'2:1 arrow keys to select and press
(17(5.
&7H;7I3F3
[ S/!&736;@7EE
S(RA67ES
SD77L7D3?7
If data does not exist for the function you
selected to review (for example DTC
(Codes)), a message informs you to run
the Read Codes function first.
"A 3F3 'FAD76 @
(AA>X )E7 & #'
78AD7&7H;7I;@9X
3
3–8 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
3DUW *0+LVWRULF'LDJQRVWLFV
✓
✓
Some 1994 and 1995 vehicles use the 16-pin OBD II connector, but are not
OBD II compliant. They still use the OBD I application software. Refer to
“Appendix A - Data Link Connectors".
If an Operating Error message displays, make sure the cables and adapters
are securely attached and the ignition key is ON. Cycle the ignition key to OFF
for 10 seconds, then ON. Attempt the test selected again. If the problem
remains, refer to “Error Messages” on page 7-3.
READ CODES
The Read Codes function is used to retrieve all stored Diagnostic Trouble Codes
(DTCs) from the control module(s). This can be performed KOEO or KOER. Two
types of codes were used by GM in the Historic System: Current codes and
History codes. Prior to 1986, all codes were referred as Current Codes. From
1986 through 1995, both codes were used as the PCM was able to differentiate
them.
4
The tool automatically displays the type of codes that pertain to the vehicle under
test. The DTC types are defined as follows:
✓
• History Codes — intermittent codes placed in the vehicle’s memory when the
trouble originally occurred, and will remain there even if the trouble has been
corrected. If no trouble after 50 engine warm-up cycles, the DTC erases.
• Current Codes — codes transmitted through the PCM’s data stream when a
trouble condition is active and cannot be erased. The problem must be
repaired to remove the DTC.
On some vehicles, all codes are Current Codes, because the PCM cannot
distinguish Current Codes from History Codes. The only way to determine this
is to erase the code and then drive the vehicle to see if the code returns.
Perform the following:
1) Set Parking Brake
2) Turn Key On-Engine Off or Running.
3) Put Transmission In Park Or Neutral.
Select Read Codes from the GM
Function List and press (17(5. The tool
will retrieve the DTCs.
!G@5F;A@ ;EF
[ S&736A67E
SD3E7A67E
S*;7I3F3
^
]
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4–1
GM Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
One of two screens displays: If the diagnostic checks are working correctly and
no DTCs have been stored in vehicle’s memory, a SYSTEM PASS message
displays. If not, the tool displays a screen indicating the number DTCs.
'KEF7?$3EE
"A3G>FE7F75F76X
Use the 83'2:1 arrow keys to scroll
through the codes. Note the codes and
press %$&. to return to the GM Function
List.
A67EAG@6
)E7](A*;7IA67E
+D;F7AI@A67E
AD&787D7@57
GDD7@FA67$
9@'KEF7?$DA4>7?
>75'B3D=A@FDA>
'3;>GD7
Erase Codes
4
The Erase Codes function deletes the DTCs from the vehicle’s computer
memory. Perform this function with KOEO — Do not START engine. This function
should be performed only after the systems have been checked completely and
DTCs have been documented.
After servicing the vehicle, erase the stored DTCs, perform a road test, and then
verify no new codes have been stored. If DTCs return, the problem has not been
corrected or other faults are present.
✓
✓
Some codes can only be removed by repairing the faults that caused them.
Therefore, these codes will remain in the vehicle’s memory until the condition
is repaired.
Not all trouble codes can be automatically erased using the scan tool. Some
vehicles require a manual erasing procedure. If possible, the tool performs the
appropriate Erase Codes procedure for your vehicle.
Select Erase Codes and press the
(17(5 key.
A message appears asking if you are
sure. Press /()75,*+7to move the
brackets to the desired response and
press (17(5.
!G@5F;A@ ;EF
S&736A67E
[ SD3E7A67E
S*;7I3F3
^
]
D3E7A67E
D7-AG'GD7
-7E"A
Selecting NO and pressing (17(5
returns you to the GM Function List.
4–2 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • GM Historic Diagnostics
Selecting YES displays a screen
prompting you to turn ignition ON. Turn
ignition key ON. Engine can be off or
running. Press (17(5 to continue.
(GD@9@7K#@
@9;@73@7#88
#D&G@@;@9X
$D7EE"(&(AA@F
A message confirming that the Erase
Codes command was successful
displays. Press (17(5 to return to the
GM Function List.
D3E7A67EA??3@6
'7@FX$7D8AD?&
#'G@5F;A@(A
*7D;8KD3E7X
Manual Erase Methods
Alternate Method 1:
1) Turn Ignition Key Off.
2) Locate Fuse Box and Remove ECM Fuse.
3) Wait 20 seconds.
4) Replace the Fuse.
Alternate Method 2:
1) Turn Ignition Key Off.
2) Remove Power from Scan Tool.
3) Disconnect Scan Tool from Vehicle.
4) Remove Negative (–) Battery Cable. Wait 30 seconds, then replace the cable.
✓
The computer has a “learning” ability to compensate for minor variations in
engine operation. Whenever power is removed from the PCM, the computer
must “relearn” various functions. Vehicle performance may be noticeably
different until this is accomplished. This is a temporary situation and is normal.
The “learning” process takes place during warm engine driving.
VIEW DATA
The View Data function allows the user to view the vehicle Parameter
Identification Data (PIDs) in real time. As the PCM monitors PIDs, they are
simultaneously transmitted to the scan tool. The PIDs are continuously updated
at the PCM’s rate.
In addition to reading codes, View Data is the most useful diagnostic function for
isolating the cause of a vehicle operation problem. Viewing data is also used for
observing sensor data and the ON/OFF state of switches, solenoids, and relays.
View Data can be performed with the ignition key On-Engine Off or Running.
!! WARNING
WARNING
Never operate the tool while driving. Have another person
ASSIST WITH THE OPERATION OF the tool.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4–3
4
GM Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Select View Data from the GM Function
List and press (17(5. The data displays
within 3 minutes unless a Select Group
screen appears.
!G@5F;A@ ;EF
S&736A67E
SD3E7A67E
[ S*;7I3F3
^
Some vehicles display a Select Group
screen for viewing data. In these cases,
only one group of data can be viewed at a
time. Select and press (17(5
'7>75FDAGB
@9;@7DAGB
@9;@7DAGB
[ @9;@7DAGB
^
Use the 83'2:1 arrow keys to scroll
through the PIDs.
The “Vehicle Data List” header marks the
beginning.
4
]
*7:;5>73F3 ;EF
#'$&'"(
-'
'(&'+
#"
]
/&(#
X
Press the %$&. key to return to the GM Function List. If multiple engine groups
were available, then pressing %$&. displays the Select Group screen.
REVIEW DATA
The Review Data function allows you to review the Read Codes data. Select
Review Data and press (17(5.
!G@5F;A@ ;EF
^
S&75AD63F3
\
[ S&7H;7I3F3
]
S;7>6'7DH;57
;EFADKA67$
AIG7>$G?B
*A>F397
Codes will be noted as History or Current. Use 83'2:1 arrow keys if more than
one DTC exists. Press %$&. to return to the GM Function List.
FIELD SERVICE
Field Service is a special diagnostic mode to monitor fuel system operation and
read DTCs. Some GM service manuals may refer to this mode as the Field
Service Mode Check. This mode works on vehicles equipped with a 12-pin ALDL
connector with a wire present in Pin-B, Diagnostic or Test Enable. The scan tool
enters this mode by grounding Pin-B: shorting Pin-B to Pin -A (ground).
4–4 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • GM Historic Diagnostics
Field Service Mode can be operated with the ignition Key On-Engine Off (KOEO)
or with the Key On-Engine Running (KOER).
✓
✓
Vehicles equipped with climate control computers do not use Field Service.
Some 1994 & 1995 vehicles equipped with a 12-pin ALDL connector with pins
A and B shorted will not cause the CHECK ENGINE light to flash codes.
Select Field Service from the GM
Function List and press (17(5.
!G@5F;A@ ;EF
^
S&75AD63F3
\
S&7H;7I3F3
]
[ S;7>6'7DH;57
Turn ignition Key On, but do not start
engine. The Check Engine light should
flash. Select YES to continue. If the light
does not illuminate, either the vehicle
does not support this test mode, the lamp
is burned-out or circuit problems exist.
T(7EFH3;>34;>;FKT
A7E-AGD
"" ;9:F>3E:
-7E"A
✓
It is difficult to know exactly which GM vehicles use the Field Service mode. It
is possible to have the Field Service mode function on the Function List, and it
not be applicable.
If Check Engine light operates, the Field
Service screen displays. Pressing
(17(5 toggles the short to Pins A & B On
and Off as indicated on the tool’s screen.
;7>6'7DH;57#88^
$D7EE"(&(A(GD@
;7>6'7DH;57#@
Continue with either the KOEO procedure or KOER procedure. When done, press
%$&. to return to the GM Function List.
✓
While in Field Service mode, no new trouble codes are stored in the vehicle’s
memory.
KOEO Procedure
With the KOEO (key On engine Off), Field Service can check relays, solenoids
and the idle speed motor, and obtain DTCs using the CHECK ENGINE light.
1) Turn ignition Key ON but DO NOT Start Engine.
2) On scan tool, place Field Service On.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4–5
4
GM Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
3) The Check Engine light will begin to flash codes. Each DTC is displayed
three (3) times. The DTCs are displayed starting with the lowest numbered
one. After all DTCs are displayed, the sequence keeps repeating until the
ignition key or Field Service mode is turned OFF.
• Count CHECK ENGINE Light Flashes to obtain trouble codes. The first digit
is sent first. A short pause separates digits while a long pause separates each
DTC. All codes contain 2 digits.
• DTC 12 (No RPM reference pulse) should display first, since the engine is not
running. If not, problems exist in the PCM or Check Engine light circuit.
Code 12 will look like:
FLASH-pause-FLASH-FLASH — long pause.
Code 23 will look like:
FLASH-FLASH-pause-FLASH-FLASH-FLASH — long pause.
4
4) When Field Service Mode is ON, most computer controlled Relays and
Solenoids will be turned ON, except for the fuel pump relay and fuel injectors.
Toggle the Field Service Mode On and Off.
• Use a voltmeter to measure Relays and Solenoids input voltage to verify
On/Off conditions. An ohmmeter could be used to check the continuity
between the relay’s switch terminals.
• The Idle Air Control (IAC) valve is fully seated to the zero position by the PCM.
• The Exhaust Gas Recirculation (EGR) solenoid is energized for 25 seconds.
KOER Procedure
With the engine running, the Field Service mode can be used to measure base
timing, check open loop/closed loop operation, and determine if the engine is
running rich or lean.
1)
2)
3)
4)
Engage parking brake and block drive wheels.
Verify engine is cold. If engine is hot or warm, allow it to cool.
On scan tool, place Field Service On.
Start engine and place transmission in Park or Neutral. The Check Engine
light will flash once.
5) Warm the engine by idling for 2 minutes at 2000 RPM.
6) Observe Check Engine light.
• If Check Engine light flashes 2.5 times a second, the on-board computer
is operating in Open Loop.
• When the engine warms up to normal operating temperature, the
on-board computer is now operating in Closed Loop. The Check Engine
light should flash once a second. The on-board computer is now
operating in Closed Loop.
• If Check Engine light...
— flashes equally ON/OFF, then the fuel system is running normally.
— is mostly ON, then the fuel system is running Rich.
— is mostly OFF, then the fuel system is running Lean.
7) On some engines, the spark advance timing is fixed during Field Service
Mode. This allows the technician to measure the engine base timing.
4–6 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
3DUW )RUG+LVWRULF'LDJQRVWLFV
This section covers Ford vehicles equipped with EEC-IV and
MECS system from 1984 – 1995. Some Ford trucks still used the
EEC-IV system after 1995. Refer to “Appendix A - Data Link
Connectors".
Due to different processor calibrations, the Ford Function List for a particular
vehicle may or may not appear as shown. Based on the vehicle information
entered at the Vehicle Setup menu, the tool automatically recognizes the
computer system installed.
✓
If an Operating Error message displays, make sure the adapter cable is
securely attached and the ignition key is ON. Cycle the ignition key to OFF for
10 seconds, then ON. This may be required because the Ford system allows
only one Self-Test function to be performed for each Key ON. Attempt the test
selected again and if the problem remains, refer to “Error Messages” on
page 7-3.
READ KOEO CODES
The Read KOEO Codes function activates the KOEO (Key On Engine Off) and
Continuous Memory self-tests which retrieves KOEO and Continuous Memory
DTCs from the PCM.
• KOEO DTCs are transmitted through the PCM data link when a trouble
condition is active. KOEO codes remain until the trouble condition becomes
inactive – usually when the fault is repaired.
• Continuous Memory DTCs are stored in vehicle’s memory at the time of
occurrence during continuous self-test monitoring. They will remain there until
the problem does not reoccur within 40 warm-up cycles, Fast KOEO codes
have been read, or the Erase Codes function has been run. Continuous
memory codes follow the KOEO codes in the data stream.
The DTCs are transmitted in two format; both transmit the same information:
• Slow Codes are regular service codes that allow the user to identify the faults
with an analog voltmeter or the check engine light. Slow codes are transmitted
within 3 minutes.
• Fast Codes are transmitted within seconds and must be read with a
diagnostic tool. Retrieving Fast Codes erases Continuous Memory Codes,
Slow Codes does not. Fast Codes do not apply to MECS vehicles.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5–1
5
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Select Read KOEO Codes from the Ford
Function List and press (17(5.
Select Fast Codes or Slow Codes and
press (17(5. Follow the instructions
step-by-step.
AD6G@5F;A@ ;EF ^
[ S&736##A67E
S&736#&A67E ]
S&7H;7IA67E
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Turn Key On-Engine Off. Do Not Start Engine.
! CAUTION
Avoid Cooling Fan! It May Turn On During Test.
While waiting for the codes to transmit, the
PCM cycles the following system
components On and Off:
5
$DA576GD7&G@E 7EE
(:3@!;@GF7EX
• Electric radiator cooling fan
(;?7&7?3;@;@9
• Fuel pump
• Check engine light or Malfunction
Indicator Light (MIL) – slow codes only.
• Idle speed control solenoid
After performing these steps, wait for the
tool to retrieve DTCs. When the test is
done, turn Ign Key OFF and press
(17(5.
(7EFA?B>7F76
(GD@9@7K#88X
The KOEO codes transmit before the
Continuous Memory codes. Use the
'2:1 arrow key to begin viewing codes.
)E7SFAH;7IA67EX
+D;F7AI@A67E
AD&787D7@57X
]
If no problems exist, Code 11 or 111 will be
displayed.
##A67
'KEF7?$3EEA67
"A3G>FE7F75F76]
GD;@9##(7EF
$D7EE"(&(AA@F
5–2 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Ford Historic Diagnostics
If vehicle problems exist, codes are set.
Use 83'2:1 arrow keys to view codes.
Write down codes for reference.
✓
##A67
J57EEA@H7DF7D\
>GF5:'>;BB397X]
Continuous Memory Codes (codes set previously under normal driving
conditions) are available after reading KOEO Codes. They are indicated as
Memory Codes by the scan tool and are transmitted after KOEO Codes.
After viewing and noting the KOEO codes,
use the '2:1 arrow key to view
Continuous Memory codes.
When done, press %$&. to return to the
Ford Function List.
!7?ADKA67 !$'7@EAD';9@3> \
*A>F397;9:7DAD ]
AI7D(:3@JB75F76
READ KOER CODES
The Read KOER Codes function activates the KOER (Key-On-Engine-Running)
self-test which retrieves KOER DTCs that are present when the engine is
running.When the trouble condition is inactive, the KOER Code will no longer be
sent through the data stream. This function also performs a Computed Timing
Check for EEC-IV vehicles manufactured from 1984 through 1991.
The DTCs are transmitted in two formats which transmit the same information:
• Slow Codes are regular service codes that allow the user to identify the faults
with an analog voltmeter or the check engine light. Slow codes are transmitted
within 3 minutes.
• Fast Codes are transmitted within seconds and must be read with a
diagnostic tool. MECS vehicles do not support Fast Codes.
! CAUTION
Exhaust gases are harmful or lethal. Always Operate
vehicle in a well-ventilated area.
! CAUTION
The KOER test is done with the engine running. Do not
over-rev engine. Observe all safety precautions.
! CAUTION
Avoid Cooling Fan! It May Turn On During Test.
Select Read KOEO Codes from the Ford
Function List and press (17(5.
AD6G@5F;A@ ;EF ^
S&736##A67E
[ S&736#&A67E ]
S&7H;7IA67E
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5–3
5
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Fast or Slow Codes
Select Fast Codes or Slow Codes and
press (17(5.
Follow the instructions step-by-step.
Failure to perform these steps may set a
false DTC in the PCM — observe the
display.
'7>75FA67(KB7
[ S3EFA67E
S'>AIA67E
1) Set Parking Brake.
2) Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Start Engine — Let Idle.
7) If Vehicle Has A Manual Transmission, Release Clutch.
Press (17(5 to activate the self-test.
✓
The following actions do not apply to MECS vehicles.
❒ For a 7.3L Diesel, depress the throttle until test is done.
❒ If Applicable, set Octane Switch To Premium.
5
The tool will prompt the user to:
❒ Work Steering Wheel
❒ Pump Brake Pedal & Cycle OD (overdrive) Cancel Switch ONLY IF
PUSH BUTTON IS AVAILABLE.
✓
Observe Screen for Prompt to Perform the next action.
❒ Quickly Press And Release Throttle. One Time Only!
After performing these steps, wait for the
tool to retrieve DTCs. When the test is
done, turn Ign Key OFF and press
(17(5.
(7EFA?B>7F76
(GD@9@7K#88X
Use the DOWN arrow key to begin viewing
codes.
)E7SFAH;7IA67EX
+D;F7AI@A67E
AD&787D7@57X
]
$D7EE"(&(AA@F
5–4 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Ford Historic Diagnostics
If no problems exist, Code 11 or 111 will be
displayed.
#&A67
'KEF7?$3EEA67
"A3G>FE7F75F76]
GD;@9#&(7EF
If vehicle problems exist, codes are set.
#&A67
$/$&'7@EAD\
7>AI!;@X*A>F397]
Use 83'2:1 arrow keys to view codes.
Write down codes for reference.
When done, press %$&. to return to the Ford Function List screen.
Computed Timing Check (1984-1991 EEC-IV Vehicles)
This option of the KOER Read Codes function allows you to check both the
“Base” engine timing (no computer adjustment) and the ability of the computer to
control spark advance.
✓
This does not apply to 7.3L diesel vehicles.
Connect a Timing Light to the vehicle in accordance with the manufacturer’s
instructions. (For 2.3L dual plug engines, use exhaust side plug. Refer to ignition
system section in vehicle service manual for specific instructions.)
Select Computed Timing and press
(17(5.
Follow the instructions step-by-step.
Failure to perform these steps may set a
false DTC in the PCM — observe the
display.
! CAUTION
'7>75FA67(KB7
S3EFA67E
S'>AIA67E
[ SA?BGF76(;?;@9
Avoid Cooling Fan! It May Turn On During Test.
1) Set Parking Brake.
2) Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Start Engine — Let Idle.
7) If Vehicle Has A Manual Transmission, Release Clutch.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5–5
5
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
If a KOER code of 98 or 998 is detected,
then the fault must be fixed before
performing this function. Press the %$&.
key to return to the Ford Function List.
3@`F&G@(;?;@9
:75=XA67/
7F75F76X;J3G>F
Q&76A(;?;@9:75=
Otherwise, the timing remains fixed for
90 seconds to allow you to measure it with
the Timing Light.
(;?;@9E"AI;J76
F3E7(;?;@9$>GE
79XRU/W679SX
(;?7&7?3;@;@9
Computed timing is equal to the base timing plus 20 degrees BTDC (Before Top
Dead Center) with 3 degrees tolerance. The base timing value is printed on the
Vehicle Emission Control Information (VECI) decal.
Press (17(5 when done.
REVIEW CODES
5
After reading DTCs, reviewing the codes is possible, even after returning to the
Ford Function List. The codes acquired during the KOEO and KOER tests are
stored in the Scan Tool’s memory. This is a safeguard to make sure that all codes
have been viewed.
Select Review Codes from the Ford
Function List and press (17(5 to
display the Review Codes screen.
AD6G@5F;A@ ;EF ^
S&736##A67E
S&736#&A67E ]
[ S&7H;7IA67E
Select the codes to be viewed and press
(17(5. Use the 83'2:1 arrow keys to
scroll through the lists.
&7H;7IA67E
[ S##A67E
S#&A67E
✓
These will be the same codes read in
earlier tests. If no new tests, then no
new codes. If the tests required to read
codes have not been performed, there will be no codes stored in the tool
memory, and a message will be displayed.
Press %$&. to return to the Ford
Function List or %$&. to the Review
Codes screen.
"A3F3'FAD76;@
(AA>X)E77E;D76
G@5F;A@8DA?!7@G
78AD7&7H;7I;@9X
5–6 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Ford Historic Diagnostics
ERASE CODES
The vehicle service manual may recommend erasing Continuous Memory Codes
from vehicle’s memory, and then drive vehicle to duplicate the malfunction before
beginning a diagnostic test. If KOEO codes were read using Fast Codes, the
memory codes have already been erased.
Only Continuous Memory Codes can be erased from the vehicle without repairing
the fault. To remove KOEO and KOER Codes, the fault must be repaired since
they only exist when a fault exists.
EEC-IV Erase Codes
Select Erase Codes from the Ford
Function List and press (17(5.
AD6G@5F;A@ ;EF ^
S&7H;7IA67E
\
[ SD3E7A67E ]
S+;99>7F7EF
Press (17(5 after each message.
#@>K!7?ADKA67E
D7D3E34>7M
$D7EE"(&FAA@F
(AD3E7##@6
#&A67EV-AG!GEF
;J3GE7A8A67X
$D7EE"(&FAA@F
5
Follow all instructions on the display.
1) Turn Ign Key Off.
2) Transmission In Park Or Neutral.
3) Wait 10 Seconds.
4) Turn Ign Key On.
Press (17(5 to begin erasing the codes.
The procedure takes less 1 minute to run. D3E;@9A67E
Press %$&. to return to the Ford
Function List.
$DA576GD7&G@E 7EE
(:3@!;@GF7X
(;?7&7?3;@;@9
MECS Erase Codes
Select Erase Codes from the Ford
Function List and press (17(5.
AD6G@5F;A@ ;EF ^
S&7H;7IA67E
\
[ SD3E7A67E ]
S+;99>7F7EF
Press (17(5 after each message.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5–7
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
#@>K!7?ADKA67E
D7D3E34>7M
$D7EE"(&FAA@F
! CAUTION
(AD3E7##@6
#&A67EV-AG!GEF
;J3GE7A8A67X
$D7EE"(&FAA@F
Never Lay Tools On Vehicle Battery. Tools May Create
Shorts And Causing Harm To User And Damage To Tools,
Battery And Electrical System.
Follow all instructions on the display.
1) Turn Ign Key Off.
2) Remove Negative (–) Battery Cable.
3) Hold Down Break Pedal for 10 Seconds.
4) Reattach Negative (–) Battery Cable.
All continuous memory codes should be erased. Press %$&. to return to the
Ford Function List.
WIGGLE TEST (EEC-IV VEHICLES)
5
The Wiggle Test, often referred to as the Continuous Monitor Test, is used to
locate intermittent electrical faults on EEC-IV vehicles. When the test is activated,
the tool will beep and display a message when a fault is present. If the problem
is fixed or goes away, the tone and message goes away. Refer to the applicable
vehicle service manual for circuits that can be tested.
✓
If the Audio Alert was turned off in the tool Setup menu, it will be automatically
activated for the Wiggle Test. Once the Wiggle Test is complete, the audio
alert returns to its previous setting.
Select Wiggle Test from the Ford
Function List and press (17(5.
AD6G@5F;A@ ;EF ^
S&7H;7IA67E
\
SD3E7A67E
]
[ S+;99>7(7EF
Either a KOEO or KOER Wiggle Test can
be run. If the vehicle problem occurs while
driving, the KOER Wiggle Test is
recommended. After selecting, press
(17(5.
'7>75F+;99>7(7EF
[ S##+;99>7(7EF
S#&+;99>7(7EF
Follow the tool’s instructions.
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
5–8 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Ford Historic Diagnostics
4) Turn Ign Key Off. Wait 10 Seconds.
5) KOEO: Turn Key On. Engine Off. Do Not Start Engine.
6) KOER: Turn Key On. Engine On and let Idle.
Instructions are available for viewing. The
default is YES. If NO is selected, the test
will begin to initialize.
*;7I@EFDG5F;A@E
AD+;99>7(7EF
-'"#
If YES is selected, the following instructions will appear.
❒ Gently tap and shake the sensor.
❒ Wiggle the sensor connectors.
❒ Twist and shake the wiring between the sensor and the PCM.
Press (17(5 to continue. The next instruction states: Beeper sounds and
message displayed while fault exists. Press (17(5 to Test and the test will begin
to initialize.
After the 10-second initialization period,
the tool is ready for the Wiggle Test.
Locate the suspect sensor or circuit
according to the above instructions.
+;99>7(7EF&G@@;@9
'F3FGE
TTT;D5G;F#TTT
If a fault is detected, the tool will beep and
display a FAULT PRESENT message. A
DTC(s) will be stored in the PCM and in the
tool. When done, press %$&. to return to
the Ford Function List.
+;99>7(7EF&G@@;@9
'F3FGE
TTT3G>F$D7E7@FTTT
Perform the “Read KOEO Codes” on page 5-1 to retrieve the DTC(s) set during
wiggle test. After making all repairs, perform “Erase Codes” on page 5-7 to clear
the memory.
OUTPUT SWITCH TEST (EEC-IV VEHICLES)
The Output Sw (Switch) Test, also known as the Output State Check, is used to
check the operation of the computer-controlled relays and solenoids on EEC-IV
vehicles. The user can troubleshoot circuits using a voltmeter to measure voltage
at the relays and solenoids in both energized and non-energized conditions. All
measurements should be recorded for reference.
✓
Fuel injectors are NOT energized during this test.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5–9
5
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
✓
On vehicles equipped with Integrated Vehicle Speed Control (IVSC), failure to
disconnect the vacuum supply hose from the Speed Control Servo energizes
the Speed Control Solenoids.
Select Output Sw Test from the Ford
Function List and press (17(5.
AD6G@5F;A@ ;EF ^
S+;99>7F7EF
\
[ S#GFBGF'I(7EF ]
S 3F3
Observe the screens and follow the
instructions.
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Turn Key On-Engine Off. Do not Start Engine.
! CAUTION
5
Avoid Cooling Fan! It May Turn On During Test.
The test screen indicates the time
remaining. Do not touch vehicle or tool
keys during this time until the next screen
appears.
$DA576GD7&G@E 7EE
(:3@!;@GF7EX
(;?7&7?3;@;@9
Depress the accelerator pedal fully to turn
ON relays and solenoids. Do the same to
turn them OFF. This can be repeated as
many times as required to locate the fault.
When done, turn key Off and press %$&.
twice to return to the Ford Function List.
&7>3KEQ'A>7@A;6E ^
D7T#88TX7BD7EEQ\
&7>73E7(:DAFF>7 ]
G>>K(AFGD@#@X
DCL DATA FUNCTIONS (EEC-IV VEHICLES)
The DCL Data (Data Communication Link) functions allows engine data
transmitted from EEC-IV vehicles beginning in 1990 to be viewed. This function
allows viewing of data parameters in real time to pinpoint problems when they
occur.
Select DCL Data from the Ford Function
List and press (17(5.
AD6G@5F;A@ ;EF ^
S#GFBGF'I(7EF \
[ S 3F3
]
SK>3>3@57(7EF
5 – 10 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Ford Historic Diagnostics
A Vehicle Data List header marks the
beginning of the data list. Use the
83'2:1 arrow keys to scroll through the
PIDs.
*7:;5>73F3 ;EF
! '(()'
#
(RAS
W
(R*S
X
When done, press %$&. to return to the Ford Function List.
CYL BALANCE TEST (EEC-IV VEHICLES)
✓
The Cyl Balance Test (Cylinder Balance Test) is only applicable to engines
equipped with EEC-IV Sequential Electronic Fuel Injection (SEFI or SFI) .
The Cyl Balance Test identifies a weak cylinder(s) on EEC-IV vehicles. A weak
cylinder may be caused by low compression, poor valve seating, fouled spark
plugs, damaged fuel injectors, and other cylinder faults. The PCM shuts off the
fuel supply to each cylinder and measures the RPM drop. The PCM then
calculates variations between cylinders thus identifying the weak ones.
! CAUTION
Exhaust gases are harmful or lethal. Always operate vehicle
in a well-ventilated area.
! CAUTION
The Cyl Balance Test is done with the engine running. Do
not over-rev engine. Observe all safety precautions.
Select Cyl Balance Test from the Ford
Function List and press (17(5.
! CAUTION
AD6G@5F;A@ ;EF ^
S#GFBGF'I(7EF \
S 3F3
]
[ SK>3>3@57(7EF
Keep hands and tools away from fan and engine during
test.
Follow the instructions on the tool screen that prompt the user to:
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Start Engine — Let Idle.
7) If Vehicle Has A Manual Trans., Release Clutch.
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 5 – 11
5
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
After pressing (17(5 to continue, the scan tool prompts the PCM for the
Cylinder ID. The PCM has 15 seconds to respond. If no ID was received, the tool
prompts the user to try again.
Once the ID is received, a Read KOER Self-Test begin. Follow all user prompts:
❒ Work Steering Wheel
❒ Pump Brake Pedal & Cycle OD (overdrive) Cancel Switch only if
pushbutton is available.
✓
Observe Screen for Prompt to Perform the next action.
❒ Quickly Press And Release Throttle. One Time Only!
If no DTC is present, continue with the
paragraph following the note below. If any
DTC(s) are present, the Cyl Balance Test
stops and the tool displays the screen to
the right.
ADD75F>>3G>FE
&7DG@(7EF
*;7I3G>FA67E
-' "# _
Select YES to review the DTC(s), then turn engine off. Record them and make
repairs before repeating the Cyl Balance Test.
5
In the next step, Do Not touch any vehicle or tool keys while the test is running.
Allow engine to idle. Engine speed may drop or become uneven — this is normal.
With no DTCs present, the tool prompts
the user to depress the Throttle Halfway
and release within the next 1.5 minutes.
Press (17(5 to continue. Do not move
the throttle.
&G@@;@9(7EFX
A@`F!AH7(:DAFF>7
(7EF)@67D!;@X
(;?7&7?3;@;@9 _
If the throttle was moved, the tool displays an error message indicating that the
test failed due to throttle movement. It prompts the user to retest the vehicle or
return to the Ford Function List.
✓
Noise from the Throttle Position Sensor may cause the test to abort even
though the throttle was not moved.
If the engine operates properly, the screen
to the right displays. Press (17(5 to
continue.
'F397A?B>7F76X
A67K>;@67D
3>3@57(7EF$3EE76X
$D7EE"(&(AA@F
5 – 12 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Ford Historic Diagnostics
If a problem exists with one or more
cylinders, the tool displays a list of failed
cylinder(s). Press (17(5 to continue.
'F397A?B>7F76X
3;>76K>;@67DE
$D7EE"(&(AA@F_
Refer to the applicable vehicle service manual for cylinder numbering sequence.
Cylinder failure may be caused by faulty injectors, sparks plugs, or wiring.
Turn the ignition key Off and press (17(5 to continue — the tool prompts the user
to retest (up to three times). If required, rerun the test to double check the results,
or to check for weaker or dead cylinders.
When done, press %$&. to return to the Ford Function List.
IVSC-SPEED CTRL (EEC-IV VEHICLES)
The IVSC-Speed Ctrl (Integrated Vehicle Speed Control) is Ford’s computerized
cruise control system on EEC-IV vehicles. It is controlled by the PCM and contains
a dedicated network of sensors, switches, and actuators. Both KOEO and KOER
Codes exist for this test. The tool provides the ability to diagnose problems by
reading DTCs.
5
Select IVSC-Speed Ctrl from the Ford
Function List and press (17(5.
AD6G@5F;A@ ;EF ^
SK>3>3@57(7EF \
[ S*'W'B776FD> ]
SS'(&(7EF!A67 _
The sub-menu Select IVSC Test is
displayed.
'7>75F*'(7EF^
[ S&736##A67E
S&736#&A67E
_
Reading IVSC KOEO Codes
Select Read KOEO Codes from the sub-menu and press (17(5. Follow
instructions on scan tool screen. These instructions will prompt the user to:
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Turn Key On-Engine Off. Do Not Start Engine.
! CAUTION
Avoid Cooling Fan! It May Turn On During Test.
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 5 – 13
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
✓
During testing, it is VERY IMPORTANT that each required step be
performed when prompted by the scan tool. Failure to perform these steps
may set DTC(s) in the PCM.
During this test, the tool prompts the user to perform the following steps:
❒ Press speed control ON button.
❒ Press speed control OFF, RESUME, COAST, & ACCEL buttons.
❒ Tap brake and clutch pedals.
Once the codes have been read by the
scan tool, turn the ignition key off. Press
(17(5 to view the KOEO failures.
*'##A67&736
(GD@9@7K#88X
$D7EE"(&(AA@F_
Use the 83'2:1 arrow keys to scroll
through the KOEO Code listing. Be sure to
write down any codes for reference.
5
*'##A67 '*3;>GD7'B776
A@FDA>*35GG?
;D5G;F3;>GD7
_
Reading IVSC KOER Codes
Select Read KOER Codes from the sub-menu and press (17(5. To retrieve
codes, follow the instructions on the tool screen as follows:
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Start Engine — Let Idle.
During testing, the tool will prompt the user to press the vehicle’s Speed Control
ON Button.
! WARNING
Exhaust gases are harmful or lethal. Always operate vehicle
in a well-ventilated area.
! CAUTION
The Read KOER test is done with the engine running. Do
not over-rev engine. Observe all safety precautions.
✓
During testing, it is VERY IMPORTANT that each required step be
performed when prompted by the scan tool. Failure to perform these steps
may set DTCs in the PCM. Be sure to observe the tool display for indications
to perform these steps.
5 – 14 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Ford Historic Diagnostics
✓
Do not touch the throttle pedal during testing. The user will be reminded of
this by the scan tool.
Once the codes have been read by the scan tool, it will instruct the user to turn
the ignition key off:
Use the 83'2:1 arrow keys to scroll
through the KOER Codes. Be sure to
write down any codes for reference.
When done, press )81& to return to the
Ford Function List.
*'#&A67
AI&$!75D73E7
@EG88;5;7@F&$! ]
75D73E7X
_
STAR TEST MODE
The STAR Test Mode can be used to retrieve DTCs from the PCM or other STAR
(Self-Test Automatic Readout) compatible controllers installed in the vehicle.
STAR Test Mode functions largely the same way and serves the same purpose
as running KOEO and KOER tests. It is generally used as a last resort to check
for DTCs in systems which may not be covered by KOEO and KOER testing
(i.e. - Computer Ride Control suspension systems).
5
Select STAR Test Mode from the Ford
Function List and press (17(5
AD6G@5F;A@ ;EF^
[ S'(&(7EF!A67 \
SA67 AA=GB
]
S$D;@F3F3
Follow the instructions on the tool screen
to access DTCs from the PCM. Pressing
(17(5 begins test.
'(&!A67X
'(#
(7EF/A>6#@A>6
"(&(A(7EFX
The TEST/HOLD parameter indicates the
state the STI (Self-Test Input). The (17(5
key toggles this state from TEST to HOLD.
'(&!A67
'(# #+
(7EF/A>6#@(7EF
"(&(AA>6X
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 5 – 15
Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
With the STI in the TEST state, the self-test begins. The STO (Self-Test Output)
parameter flashes either a HIGH or LOW. A beep will accompany each LOW flash.
Write down the 2– digit or 3 – digit code for reference.
✓
Disregard the blink which may occur when ignition key is turned ON.
Depending on the vehicle being tested, determines if a three digit or two digit code
used. If required, refer to the vehicle service manual for applicable code structure.
❒ A digit consists of consecutive LOW flashes or beep — count the
number of LOWs for the digit
❒ A short HIGH (short pause) occurs between digits.
❒ A long HIGH (long pause) occurs between codes.
❒ There is no flash for the digit 0 (zero).
After all codes are sent, the series will repeat once and then stop. An example is
shown below.
A Three-Digit DTC (214) will Flash as follows:
5
STO: LOW-LOW
=2XX (Hundreds Place =2)
STO: HIGH
Short Pause
STO: LOW
=21X (Tens Place =1)
STO: HIGH
Short Pause
STO: LOW-LOW-LOW-LOW
=214 (Ones Place =4)
Two-Digit DTCs (12, 42) will Flash as follows:
STO: LOW
=1X (Tens Place =1)
STO: HIGH
Short Pause
STO: LOW-LOW
=12 (One’s Place =2)
STO: HIGH
Long Pause (Between DTCs)
STO: LOW-LOW-LOW-LOW
=4X (Tens Place =4)
STO: HIGH
Short Pause
STO: LOW-LOW
=42 (Ones Place =2)
If necessary, refer to an appropriate vehicle service manual for procedure on how
to use STAR Test Mode for specific vehicle under test.
5 – 16 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
3DUW &KU\VOHU+LVWRULF'LDJQRVWLFV
This section covers most non-OBD II (OBD I) compliant
Chrysler vehicles manufactured from 1989 – 1995.
✓
✓
Due to different processor calibrations used, the function list for a particular
vehicle may or may not appear as shown. Based on the vehicle information
entered, the tool automatically detects the computer system installed.
If an Operating Error message displays, make sure the adapter cable is
securely attached, and the ignition key is ON. Cycle the ignition key to OFF for
10 seconds, then ON. This may be required to reset the computer. If required,
select YES to try again. If the problem still exists, refer to “Error Messages”
on page 7-3.
READ CODES
The Read Codes function enables the tool to retrieve and display any specific
emission-related Diagnostic Trouble Codes (DTC) stored in vehicle’s memory.
This function also retrieves DTCs that failed one trip but did not turn on the MIL
light. The function can be performed KOEO or KOER.
Select Read Codes from the Chrysler
Functions list and press (17(5.
:DKE>7DG@5F;A@E
[ S&736A67E
SD3E7A67E
S*;7I3F3
^
]
Perform the following.
1) Set Parking Brake
2) Turn Key On-Engine Off or Running.
3) Put Transmission In Park Or Neutral.
! CAUTION
Keep hands and Tools away from fan and engine during
test.
If no DTCs have been stored in vehicle’s
memory, a System Pass screen displays.
'KEF7?$3EE
"A3G>FE7F75F76X
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6–1
6
Chrysler Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
If not, press the '2:1 arrow to view the
DTCs.
Use the 83'2:1 arrow keys to scroll
through the codes. Write down the codes
for reference or print them later.
)E7S(A*;7IA67X
+D;F7AI@A67E
AD&787D7@57
"/$
*$$GD97'A>7@A;6
;D5G;F
The Chrysler MIL code (3-digit) and SAE code (5-digit) follow on the first line.
"/$
*$$GD97'A>7@A;6
;D5G;F
(&"'/$
3FF7DK
\
;E5A@@75F76
]
R@ 3EFK5>7ES
There may be times where only one or both display. Dashes display if the DTC
type does not exist.
6
"/WWWW
AAEF ;?;F
J577676
"WWW/$
3?E:38F$AE;F;A@
\
5FG3FADW3@=]
;D5G;F!3>8G@5F;A@
When done, press %$&. to return to the Chrysler Functions list.
6–2 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Chrysler Historic Diagnostics
ERASE CODES
The Erase Codes function deletes the DTCs from the vehicle’s computer
memory. Perform this function only after the systems have been checked
completely and DTCs have been documented. This function should be performed
KOEO. Do not START engine.
After servicing the vehicle, erase the stored DTCs, perform a road test, and then
verify no new codes have been stored. If DTCs return, the problem has not been
corrected or other faults are present.
Select Erase Codes and press the
(17(5 key.
:DKE>7DG@5F;A@E
S&736A67E
[ SD3E7A67E
S*;7I3F3
]
Follow the instructions and press
(17(5.
(GD@9@7K#@X
@9;@7!GEF7#88
(AD3E7A67EX
$D7EE"(&(AA@F
A message confirms the codes are
erased. Press (17(5 to return to the
Chrysler Functions menu.
A67ED3E76X
6
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6–3
Chrysler Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
VIEW DATA
The View Data function allows the mechanic to view the vehicle’s parameter
identification data (PIDs) in real time. As the PCM monitors the PIDs, they are sent
to the scan tool. Apart from Read Codes, View Data is the most useful diagnostic
function for isolating the cause of a vehicle operation problem. Viewing data is
also used for observing sensor data and the ON/OFF state of switches, solenoids,
and relays.
Select View Data from the Chrysler
Functions list and press (17(5.
:DKE>7DG@5F;A@E
S&736A67E
SD3E7A67E
[ S*;7I3F3
]
Perform the following.
1) Set Parking Brake
2) Turn Key On-Engine Off or Running.
3) Put Transmission In Park Or Neutral.
Press (17(5 when done.
! CAUTION
6
Keep hands and Tools away from fan and engine during
test.
The Select Data To View menu displays.
Select Display Data to view the PIDs or
Change Display Set to change the
number of lines displayed on the screen.
Selecting fewer lines provides faster
update rates. The default is four lines.
'7>75F3F3(A*;7I^
[ ;EB>3K3F3
:3@97;EB>3K'7F
Press (17(5 to establish a communication link.
Use the 83'2:1 arrow keys to scroll
through the PIDs. A “n/a” or “- - -”
indicates the PID is not used by the
vehicle.
) RG'S
$() RPS
&#R9S
(((!$RAS
@/3
@/3\
X
]
Press %$&. to return to the Select Data To View menu. Press %$&. again to
display theChrysler Functions list.
6–4 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Chrysler Historic Diagnostics
SWITCH TEST
The Switch Test is used to test the operation of switches on various Chrysler
vehicle systems. These systems may include cruise control, A/C, braking, and the
shift lever position.
✓
Because of differences in vehicle designs, the Switch Test may not test the
same switches in every car.
Select Switch Test and press (17(5.
:DKE>7DG@5F;A@E ^
[ S'I;F5:(7EF \
S5FG3FAD(7EF ]
S6>7'B776(7EF
Select a switch to be tested from the list
and press (17(5.
'7>75F'+(A(7EF ^
[ / &
'& -
]
'*# (''"'
To test a switch, press the switch and
check the tool display. If the switch is
available for testing, the tool displays the
current status of the switch.
(7EF;@9'I;F5:
/ )(&
'+('
6
To finish testing switch, press the switch again. The switch status on the bottom
should change if the switch is working.
To test another switch, press the %$&. key to return to the Select SW to Test
screen. To return to the Chrysler Functions list, press the %$&. key.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6–5
Chrysler Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
ACTUATOR TEST
The Actuator Test is used to check the operation of many of the
computer-controlled relays and solenoids. This is also helpful for checking
voltages and output signals. Use a voltmeter to check the output signals at each
relay and solenoid to verify their operation. To do this, take voltage readings at
relays and solenoids before beginning this test. Then activate the test to energize
the relays and solenoids. Check voltages again to determine if they are
functioning properly. Remember to write down readings for reference.
✓
Not all vehicles have the same actuators. The tool will not allow the test of
actuators not present on the vehicle.
! CAUTION
Some Actuator Tests may activate the fuel pump. Do not
disconnect any fuel lines or remove fuel injectors unless it
is required by the vehicle service manual. Be sure to
reconnect all lines when testing is complete.
! CAUTION
Gasoline leaking onto hot engine and exhaust parts can
cause fire or other hazardous conditions.
Select Actuator Test and press (17(5.
6
:DKE>7DG@5F;A@E ^
S'I;F5:(7EF \
[ S5FG3FAD(7EF ]
S6>7'B776(7EF
Follow all instructions on the tool screen. It will prompt the user when to turn the
ignition key ON, do not start the engine.
✓
Actuators for the Engine and Transmission are combined into one list when
applicable.
Select an actuator to be tested from the
list and press (17(5.
If the actuator selected is not available for
the vehicle under test, the tool will indicate
so. If the actuator is available, the tool will
energize that actuator
Use a voltmeter to test the actuator for
correct operation. To test another actuator
on the list, press the %$&. key.
$;5=5FG3FAD(7EF ^
[ / &
'# '/& ' ]
''+'# (7EF;@95FG3FAD
/ &
(A'7>75F
;887D7@F5FG3FAD
To return to the Chrysler Functions list, press the %$&. key.
6–6 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Chrysler Historic Diagnostics
IDLE SPEED TEST
The Idle Speed Test is used to test the functionality of the vehicle idle speed
control system. The test allows the user to enter the desired engine speed. The
test vehicle should respond by matching the speed commanded. If the vehicle
matches the demanded engine speed, the idle speed control system is
functioning properly.
Select Idle Speed Test from the Chrysler
Functions list and press (17(5.
The tool instructions may vary depending
on the vehicle information entered.
However, in all cases it will instruct the
user to perform the following:
:DKE>7DG@5F;A@E ^
S'I;F5:(7EF \
S5FG3FAD(7EF ]
[ S6>7'B776(7EF
1) Set the Parking Brake.
2) Turn A/C off.
3) Start engine and let idle.
! WARNING
Keep hands and Tools away from fan and engine during
test.
! WARNING
Carbon monoxide (CO) and other vehicle emissions are
harmful or fatal to personnel. Always operate vehicle in a
well ventilated area.
Use the 83'2:1 arrow keys to change
the Ideal RPM (engine speed). The
vehicle should respond by matching the
Ideal RPM.
6>7'B776(7EF
5FG3>&$!
673>&$!
\](A:3@97&$!
Press the %$&. or %$&. key to end the
test and return to the Chrysler Functions list.
SENSOR TEST
The Sensor Test is used to view the sensor outputs of some monitored vehicle
systems. The Sensor Test is similar to View Data, as it allows the user to read
the current output of various sensors throughout the vehicle.
Select Sensor Test from the Chrysler
Functions list and press (17(5.
:DKE>7DG@5F;A@E ^
S6>7'B776(7EF \
[ S'7@EAD(7EF
&7H;7I3F3
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6–7
6
Chrysler Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Turn ignition key On — Engine can be Off or Running. Press (17(5 and the scan
tool will build a list of sensors and display them.
One sensor will be displayed per screen.
Use the 83'2:1 arrow keys to scroll
through the supported sensors. The tool
displays the status of the sensor.
*;7I;@9'7@EAD
$() RPS
X]
Press the %$&. key to end the test and return to the Chrysler Functions list.
REVIEW DATA
The Review Data function allows you to review the information stored in the Scan
Tool’s memory. The scan tool does not require power from the vehicle to perform
this function. Internal battery power can be used.
Select Review Data from the Chrysler
Functions list and press (17(5.
6
In the Review Data screen press (17(5
to display the data.
:DKE>7DG@5F;A@E ^
S6>7'B776(7EF \
S'7@EAD(7EF
[ &7H;7I3F3
&7H;7I3F3
[ SA67E
Use the 83'2:1 arrow keys to scroll through the DTCs.
If data does not exist, a message informs
you to run the Read Codes function first.
"A 3F3 'FAD76 @
(AA>X )E7 &
#'78AD7
&7H;7I;@9X
Press %$&. twice to return to the Chrysler Functions list.
6–8 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
3DUW +HOS7URXEOHVKRRWLQJ
HOW TO USE ON-LINE HELP
The software contains On-Line Help for
specific tool screens, functions, and error
messages. When the icon (^) appears in
the upper right-hand corner of the display,
On-Line Help is available.
#B7D3F;@9DDADX ^
:75=A@@75F;A@EM
(DK93;@
-7E"A
To enter On-Line Help, press the +(/3
key. For the screen above, the help
message would look like this
&# #+"
X"(#"-#"
X##)$(#* ]
('(#""(#&#
The text in On-Line Help screens are in
CAPITAL LETTERS. This is an indication
that you are viewing On-Line Help
screens and not screens associated with
a function of the Function List.
X('(#""(#&(#
#!$)(&+&"# \
X#!$)(&$#+&/
&#)"&)('#
Some messages are longer than one screen. Use the 83'2:1 arrow keys to
scroll through the screens.
To exit On-Line Help and return to the original screen, press the %$&. key.
TOOL DOES NOT POWER UP
✓
Review the “Safety Precautions” before troubleshooting.
If the tool will not power up, communicate with your vehicle’s PCM, pass Tool
Self-Tests, or functions incorrectly in any other way, then try these
Troubleshooting Tips below before consulting Actron.
Though the tool requires at least 6.5V to power up, the vehicle’s control modules
require a minimum of 8.0V to power up and operate.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7–1
7
Help & Troubleshooting • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
PIN 4 (GND)
PIN 2 (BAT+)
PIN 6 (GND)
LH DLC
PIN 16 (BAT+)
J1962 (OBD II) DLC
scan tool does not power
up.
Is
battery fully
charged?
Measure Voltage
between Pins 16 and 4.
NO
Charge battery.
NO
Repair Ground
circuit. Refer to a
service manual.
YES
Measure resistance
between Pin 4 and
frame ground.
Above 10V?
NO
YES
Contact Customer
Service Center.
less than
5 ohms?
YES
Open exists in power
circuit. Check for a blown fuse
or an open wire. Refer to a
service manual.
7
Check the following:
• Using Non-OBD II Adapter Cables
❒ The cigarette lighter adapter is hooked up. Make sure the cigarette lighter
end is firmly held in the cigarette lighter socket.
❒ Verify that the vehicle’s cigarette lighter fuse is OK. Some vehicles must
have the key on for the cigarette lighter socket to be on.
• Using J1962 (OBD II) or Chrysler LH Adapter Cable
❒ Make sure the tool’s DLC is connected correctly to the vehicle’s DLC. Verify
the pins are clean and fully seated in the DLC.
❒ At least 8.0V must be present between the power and ground pins to power
the computer module(s) and communicate.
❒ Use the following flowchart to troubleshoot the problem.
7–2 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Help & Troubleshooting
ERROR MESSAGES
• Vehicle Communication Fault
If the tool exhibits a problem when
communicating with the vehicle, a
message displays. The vehicle’s control
module(s) enters into an unrecoverable
state. Press (17(5 and the tool resets.
*7:;5>7A??3G>FX ^
(GD@7K#88AD
'75V(:7@$D7EE
"(&(A&7E7F(AA>
• Operating Error or Erroneous Data
An Operating Error or Erroneous Data
occurs if the vehicle’s computer(s) stops
communicating with the tool. When this
happens, the tool prompts you to select
YES to try again of NO to return to the
Function List, or +(/3 to display Help
messages and then press the (17(5 key.
#B7D3F;@9 DDAD ^
:75= A@@75F;A@EM
(DK 93;@
-' "#
Check the following if an error message displays:
❒ Verify ignition key is ON — not in the
ACCESSORIES position.
❒ Make sure the tool’s adapter cable is securely
connected to the vehicle’s DLC.
❒ Examine the DLC closely and check for cracked
❒
❒
❒
❒
❒
❒
or recessed pins, or for any substance that
could prevent a good electrical connection.
Verify that the vehicle you are testing is an OBD II-compliant vehicle. Just
because it has the OBD II J1962 DLC does not mean the vehicle is OBD II
compliant. Inspect the vehicle’s VECI decal for a statement of OBD II
compliance.
Test for continuity between the DLC wiring and the computer. In an extreme
case, there may be a broken wire.
With the KOEO, check for blown fuses. The computer and DLC usually use
separate fuses. If the fuse for the computer is blown, data cannot be
transmitted. The fuses may be located on the fuse block in the passenger
compartment.
Make sure the computer has a good ground. If the computer case is
grounded, then clean the connection and apply a conductive (dielectric)
grease to the mating surfaces.
With the KOEO, verify the battery voltage is at least 10.0V; the minimum
voltage to power the computer.
As a last resort, the computer may be defective. Refer to the vehicle
service manual to diagnose the computer.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7–3
7
Help & Troubleshooting • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
BATTERY REPLACEMENT
The tool requires a 9V (type 6LR61) alkaline battery to operate independent of
vehicle and AC power. When the batteries need to be replaced, the low-battery
icon () displays.
❒ Rechargeable batteries do not last as long alkaline types and are not
recommended.
❒ Non-rechargeable Lithium (Li) batteries can be used. Though Lithium types
last longer than the alkaline types, they are more expensive.
Follow these steps to replace the batteries:
1) Place the tool with the display
facing down on a non-abrasive
surface.
2) Remove the battery cover
screw.
3) Slide the battery cover off.
4) Remove discharged batteries
and properly discard.
5) Install new battery.
6) Slide battery cover on.
7) Install screw — do not
overtighten.
Screw
9V Battery
Cover
TOOL SELF-TESTS
7
If you experience problems when performing the Tool Self-Tests, contact
technical support at 1-800-228-7667 (8:00 – 6:00 EST Monday – Friday) or send
an email to tech_support@actron.com
Tool Self-Tests check the display, keypad, internal memory, and RS-232
interface.
After powering up the tool, the Main Menu
displays four choices. Select Tool
Self-Test with the 83'2:1 arrow keys
and press (17(5.
!3;@ !7@G
*7:;5>7 ;39@AE;E
(AA> '7FGB
[ (AA> '7>8W(7EF
^
]
From the Tool Self-Test menu, choose from Display Test, Keyboard Test, or
Memory Test.
7–4 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Help & Troubleshooting
• Display Test
The Display Test is used to check the
LCD. The test fills every pixel of the LCD
display with a solid black character. Select
Display Test and press (17(5.
(AA> '7>8W(7EF
[ S;EB>3K (7EF
S7K4A3D6 (7EF
S!7?ADK (7EF
^
]
Press (17(5 again to start the test. Look for pixels that are not black. In other
words, look for missing spots in the solid black characters. When done, press the
%$&. key.
"(& (A (7EFX AA=
AD !;EE;@9 'BAFE
@ ;EB>3KX $D7EE
+:7@ A@7
• Keyboard Test
The Keyboard Test is used to verify the keys are functioning properly.
Select Keyboard Test from the Tool Self-Test menu to display the Keyboard
Test screen.
When you press a .(<, the key name or
scroll direction should appear on the
display.
$GE: GFFA@ (A (7EF
7K @6 ;EB>3K "3?7
7K
+:7@ A@7
For example, if you press the (17(5 key,
then Key: ENTER displays on the third
line of the screen. If the name does not
display, then the key is not working.
$GE: GFFA@ (A (7EF
7K @6 ;EB>3K "3?7
7K "(&
+:7@ A@7
The only exception is the %$&. key. When the %$&. key is pressed, the Tool
Self-Test menu returns.
If the Tool Self-Test menu does not return, then the %$&. key is not working.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7–5
7
Help & Troubleshooting • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• Memory Test
If the tool has trouble playing back recorded data, displaying trouble code
definitions, or doing any other function that uses internal memory, then it is a good
idea to run the Memory Test.
From the Tool Self-Test menu, select Memory Test and press (17(5.
A MEMORY TEST message displays and
the screen fills with dots as the internal
memory is tested.
✓
!7?ADK (7EF X X X X X X
X X X X X X X X X X
The Memory Test may take several
minutes to complete.
If no problems were detected, then a
MEMORY TEST PASSED! message
displays on the screen. If a problem was
detected, then a MEMORY TEST FAILED!
message and the software identification
(SW ID) display on the screen.
!7?ADK (7EF 3;>76
'+ $D7EE "(& (A A@F
Press the (17(5 key to return to the Tool Self-Test menu.
• Program Mode
The Program Mode is accessed from the Main Menu. This mode is used for
updating the tool software. Instructions are provided with the new software.
TECHNICAL SUPPORT
7
• Toll-Free Number: 1-800-228-7667
• e-mail: tech_support@actron.com
• visit website: www.actron.com
7–6 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
$SSHQGL[$ 'DWD/LQN&RQQHFWRUV
GM Cars, Light Trucks & Vans–
F E D C B A
G H J K L M
$/'/&RQQHFWRU
2%',,-&RQQHFWRU
94-95 GM Cars (Used only ALDL prior to 1994)
Make/Model
Engine
2.3L DOHC PFI
Achieva
Aurora
Beretta/Corsica
Camaro, Firebird,
Trans Am
Caprice / Impala
Cavalier
Century
Concours
Corvette
Cutlass Ciera
Cutlass Supreme
DeVille/Concours
2.3L SOHC PFI
3.1L SFI
4.0L SFI
2.2L TBI
2.3L DOHC
3.1L PFI
3.4L PFI OHV
3.8L SFI
5.7L PFI
5.7L TBI, MFI
4.3L V-8 MFI
2.2L TBI, SFI
2.3L DOHC
3.1L SFI
2.2L
3.1L
4.6L OHC
4.9L SFI
5.7L OHC (ZR-1)
5.7L PFI, SFI
2.2L PFI
3.1L SFI
3.1L MFI, SFI
3.4L OHC SFI
4.6L OHC
4.9L PFI
3.8L SFI
VIN
A, D
D
3
M
C
4
A
M
S
K
RPO
LG0,LD2
LD2
L40
L82
L47
LN2
LG0
L82
L32
L36
P
LT1
P
W
4
D
T
4
M
Y, 9
B
J
P
4
M
M
X
Y, 9
B
L, K
LT1
L99
LN2
LD2
LH0
LN2
L82
LD8, L37
L26
LT5
LT1
LN2
L82
L82
LQ1
LD8, L37
L26
L27, L36
Year
94
95
94
94-95
95
94-95
94
94-95
94-95
95
94
95
94, 95
94-95
94, 95
95
95
95
94-95
94-95
94
94-95
94-95
94-95
94-95
94-95
94-95
94-95
94-95
94-95
DLC Adapter
ALDL
OBD II
ALDL
ALDL
OBD II
ALDL
ALDL
ALDL
ALDL
16-Pin
ALDL
ALDL/OBD II
ALDL, OBD II
ALDL
ALDL, OBD II
OBD II
ALDL
ALDL
ALDL
ALDL
ALDL
OBD II
OBD II
ALDL
ALDL
ALDL
ALDL
ALDL
ALDL
OBD II
Eighty-Eight,
Ninety-Eight, Park
3.8L SFI SC
1
L67
95
OBD II
Avenue, Bonneville
Eldorado, Seville
4.6L OHC
Y, 9
LD8, L37
94-95 ALDL
4.6L OHC
Y, 9
LD8, L37
94-95 ALDL
Fleetwood
5.7L TBI, SFI
P
LT1
94-95 ALDL
2.3L PFI DOHC
A, D
LD2
94-95 ALDL
Grand Am
2.3L PFI SOHC
3
L40
94
ALDL
3.1L SFI
M
L82
94-95 ALDL
Note: Data Link connectors (DLC) are located under the dash, near the steering wheel.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A–1
A
Data Link Connectors • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
94-95 GM Cars (Used only ALDL prior to 1994)
Make/Model
GrandPrix
LeSabre
Lumina, Monte
Carlo
Regal
Riviera
Roadmaster
Saturn SC1, SL,
SL1, SW1
Saturn SC2, SL,
SL2, SW2
Engine
2.3L DOHC
3.1L MFI
3.4L PFI OHC
3.8L MFI
3.1L PFI, SFI
3.4L MFI OHC
3.1L MFI
3.8L SFI, MFI
3.8L MFI
3.8L SFI SC
5.7L
VIN
D
M
X
L
M, T
X
M
L
K
1
P
RPO
LD2
L82
LQ1
L27
L82, LH0
LQ1
LH0, L82
L27
L36
L67
LT1
Year
94-95
94-95
94-95
94-95
94-95
94-95
94-95
94-95
95
95
94-95
DLC Adapter
OBD II
ALDL
ALDL
OBD II
ALDL
ALDL
ALDL
ALDL
OBD II
OBD II
ALDL
1.9L SOHC
8
L24
94-95
ALDL
1.9L DOHC
7
LL0
94-95
ALDL
2.3L DOHC
D
LD2
95
ALDL
2.3L SOHC
3
L40
94
ALDL
3.1L
M, T
L82, LH0
94-95 ALDL
3.8L MFI
K
L36
95
OBD II
Sunbird
3.1L PFI
T
LH0
94
ALDL
2.0L TBI OHV
H
LE4
94
ALDL
Sunfire
2.2L MFI
4
LN2
95
OBD II
2.3L PFI DOHC
D
LD2
95
OBD II
Note: Data Link connectors (DLC) are located under the dash, near the steering wheel.
Skylark
94-95 GM Light Trucks & Vans
Make/Model
RPO
Engine
Year
DLC
Z
LB4
4.3L TBI
94-95
ALDL
H
LO3
5.0L TBI
94-95
ALDL
C Series 4x2 &
K series 4x4
K
LO5
5.7L TBI
94-95
ALDL
Conventional Cab
P
L49
6.5L Diesel
94-95
ALDL
L65, L56
6.5L Turbo
diesel
94-95
ALDL
N
L19
7.4L TBI
94-95
ALDL
Z
LB4
4.3L TBI
94-95
ALDL
H
LO3
5.0L TBI
94-95
ALDL
K
LO5
5.7L TBI
94-95
ALDL
P, Y
L49, L57
6.5L Diesel
94-95
ALDL
N
L19
7.4L TBI
94-95
ALDL
W
L35
4.3L CPI
94-95
ALDL
Z
LB4
4.3L TBI
94
ALDL
Pickup, Sierra, Blazer,
Suburban, Yukon & Tahoe
A
Code
G series 4x2
Van (full size)
Chevy van, Sport van, GMC
Vandura and Rally
M series 4x2 &
L series 4x4, Small Van,
Astro, Safari
F
Note: Data Link connectors (DLC) are located under the dash, near the steering wheel.
A – 2• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Data Link Connectors
94-95 GM Light Trucks & Vans
Make/Model
Code
RPO
Engine
Year
DLC
Z
LB4
4.3L TBI
94-95
ALDL
K
LO5
5.7L TBI
94-95
ALDL
Forward Control
Y
L57
6.5L Diesel
94
ALDL
Parcel/Delivery commercial
vans, Motorhomes
F
L65
6.5L Turbo
Diesel
94-95
ALDL
P series 4x2
N
L19
7.4L TBI
94-95
ALDL
4
LN2
2.2L MFI
94-95
OBD II
W
L35
4.3L CPI
94
95
ALDL
OBD II
Blazer, Bravada, Jimmy, Pickup
& Sonoma
Z
LB4
4.3L TBI
94
95
ALDL
OBD II
U & X series 4x2
D
LG6
3.1L TBI
94-95
ALDL
L
L27
3.8L PFI
94-95
ALDL
S series 4x2 &
T series 4x4
Small Conventional Cab,
All Purpose Vehicle,
Lumina APV, Silhouette, Trans
Sport
Note: Data Link connectors (DLC) are located under the dash, near the steering wheel.
A
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A–3
Data Link Connectors • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Ford Cars, Light Trucks & Vans
((&,9&RQQHFWRU
0(&63LQ&RQQHFWRU
0&8&RQQHFWRU
0(&63LQ&RQQHFWRU
2%',,-&RQQHFWRU
Ford and Lincoln/Mercury Cars, Light Trucks & Vans
MODEL
Aspire
Capri / XR2
ENGINES
1.3L
1.6L, 1.6L T
2.3L, 2.3L T, 3.8L,
5.0L, 5.0LHO
3.8L, 4.6L, 5.0L
DLC
MECS 17
MECS 7
EEC IV
YEAR
LOCATION
94-95 Engine compartment, left rear corner
91-94 Engine compartment, right rear corner.
84-86 Engine compartment, left rear corner.
EEC IV
88
4.6L
EEC V
89-94
95
Contour
2.0L, 2.5L
EEC IV
95
Cougar
2.3L, 2.3L T, 3.8L,
5.0L, 5.0LHO
EEC IV
84-85
86-90
Continental
91-95
4.6L
Escort /
1.6L, 1.6L Turbo,
XR3i/Lynx/ EXP/ 1.9L
LN7
A
EEC V
94-95
EEC IV*
84-90
Escort
1.8L
EEC IV
MECS 17
91-95
91-95
Festiva
Grand Marquis,
Crown Victoria,
Colony Park,
Country Squire
1.3L
4.6L, 5.0L
MECS 7
EEC IV*
4.6L
EEC V
90-93
84
85-94
95
Grand Marquis/
Crown Victoria
(Police)
Marquis/LTD
Mark VII
5.8L
MCU
84
85-91
2.3L, 3.8L
5.0L, 5.0L HO
EEC IV
EEC IV*
84-86
84-89
Engine compartment, right corner near
firewall.
Right rear of engine compartment.
Below instrument panel right of steering
wheel.
Engine compartment, left side by shock
tower.
Right inner fender of engine compartment
Engine compartment, in front of left shock
tower.
Engine compartment, in front of right shock
tower.
Below instrument panel to right of steering
wheel.
Right fender apron near firewall and shock
tower.
Engine compartment, left rear corner.
Engine compartment, left rear corner near
firewall.
Engine compartment, left rear corner.
Above right wheel well.
Front Left fender apron above wheelwell.
Below instrument panel to right of steering
wheel.
Above right wheel well.
Front of left fender apron above wheelwell.
Engine compartment, left rear corner.
Engine compartment, right corner near
firewall
90-92 Front of right fender apron.
* Early models are equipped with the EEC III diagnostic system which is not supported by this tool.
A – 4• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Data Link Connectors
Ford and Lincoln/Mercury Cars, Light Trucks & Vans
MODEL
Mark VIII
Mustang
Mystique
Probe
ENGINES
4.6L
DLC
EEC IV
2.3L,2.3L Turbo,
EEC IV
5.0L, 5.0L HO, 5.0L
SHP
3.8L
EEC IV
3.8L
2.0L, 2.5L
EEC V
EEC IV
2.0L
(A/T only in 93)
MECS 17
EEC IV
2.2L, 2.2L Turbo
MECS 7
2.5L
MECS 17
3.0L
EEC IV
Sable
3.0L, 3.8L
EEC IV
Scorpio
Taurus
2.9L
2.5L, 3.0L FF, 3.0L,
3.0L SHO, 3.2L,
3.8L
2.3L HSC,
2.3L HSO, 3.0L
2.3L, 2.3L T, 3.8L,
3.8L SC, 5.0L,
5.0L HO
EEC IV
EEC IV
Tempo / Topaz
Thunderbird
EEC IV
EEC IV
YEAR
LOCATION
93-95 Engine compartment on top of left wheel
well.
84-85 Center of left fender apron.
86-93 Left rear corner of engine compartment on
shock tower.
94-95 Rear of right shock tower.
84-85 Center of left fender apron.
86-93 Left rear corner of engine compartment on
shock tower.
94-95 Below left side of glove compartment.
95
Left side of engine compartment near shock
tower.
93
Left rear of engine compartment near strut
tower.
93-95 Left rear of engine compartment near strut
tower.
89-92 Left rear of engine compartment near strut
tower.
93-95 Left front of engine compartment near
battery.
91-92 Left rear of engine compartment near strut
tower.
86-87 Engine compartment near alternator.
88-95 Right rear corner of engine compartment.
88
Engine compartment, right rear corner.
86-87 Engine compartment near alternator.
88-95 Right rear corner of engine compartment.
84-92
93-94
84-85
86-90
91-95
Town Car
Tracer
4.6L
EEC V
94-95
4.6L
EEC V
95
4.6L, 5.0L
EEC IV*
84
85-90
1.8L
1.8L
MECS 7
Right rear corner of engine compartment.
Left strut tower.
Right inner fender of engine compartment
Engine compartment, in front of left shock
tower.
Engine compartment, in front of right shock
tower.
Below instrument panel to right of steering
wheel.
Below instrument panel right of steering
wheel.
Above right wheel well.
Left fender apron, near or above wheelwell.
Above left wheel well.
94-94
88-89
Engine compartment, left rear corner near
firewall.
MECS 17 91-95 Engine compartment, left rear corner near
firewall.
1.9L
EEC IV
91-95 Engine compartment, left rear corner.
XR4Ti
2.3L Turbo
EEC IV
85-88 Engine compartment, right fender apron
above wheel well.
Aerostar
2.3L, 2.8L, 3.0L,
EEC-IV
86-92 Left front fender below starter relay.
4.0L
93-95 Left rear engine compartment on firewall.
84-87 Right inner fender near starter relay.
Bronco
4.9L*, 5.0L*, 5.8L* EEC-IV
88-95 Left front corner of engine compartment.
*84-85 A/T Only
* Early models are equipped with the EEC III diagnostic system which is not supported by this tool.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A–5
A
Data Link Connectors • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Ford and Lincoln/Mercury Cars, Light Trucks & Vans
MODEL
Bronco II
ENGINES
2.8L, 2.9L
E-Series,
Econoline Van
4.9L, 5.0L, 5.8L,
7.3L D, 7.3L TD
7.5L Calif. >14,000
GVW
7.5L 49 States
5.8L > GVW
Explorer
4.0L
F-Series Pickup 4.9L, 5.0L, 5.8L,
7.3L D,
7.3L TD, 7.5L
5.8L > 8500 GVW
7.0L
7.0L > 14,000 GVW
7.5L W/Fed Emiss
7.5L > 8,500 GVW
49 States
7.5L > 14,000 GVW
Ranger
2.3L
2.3L, 2.8L, 2.9L,
3.0L, 4.0L
2.3L, 3.0L, 4.0L
DLC
EEC-IV
EEC-IV
EEC-IV
YEAR
LOCATION
84-88 Right inner fender near starter relay.
89-90 Right fender panel below engine
compartment fuse block.
84-91 Right front fender near starter relay.
92-95 Left front corner of engine compartment.
96
Left front corner of engine compartment.
EEC-IV
EEC-IV
EEC-IV
EEC-IV
96
96
91-95
84-87
88-95
EEC-IV
EEC-IV
EEC-IV
EEC-IV
EEC-IV
96-98
91-96
97-98
96
97-98
EEC-IV
MCU
EEC-IV
97-98
84
84-85
86-92
EEC-V
Left front corner of engine compartment.
Left front corner of engine compartment.
Right rear of engine compartment.
Right inner fender near starter relay.
Left front fender apron in rear of engine
compartment.
Left rear of engine compartment.
Left rear of engine compartment.
Left rear of engine compartment.
Left rear of engine compartment.
Left rear of engine compartment.
Left rear of engine compartment.
Right front inner fender panel.
Right front inner fender panel.
Right rear fender apron near fuel pump relay.
Left front inner fender by fuse/relay block.
92-94
95
Below instrument panel, right of steering
wheel.
Windstar
3.0L, 3.8L
EEC-V
95
Below instrument panel, right of steering
wheel.
* Early models are equipped with the EEC III diagnostic system which is not supported by this tool.
A
A – 6• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Data Link Connectors
Chrysler Cars, Light Trucks & Vans
/+&RQQHFWRU
6&,&RQQHFWRU
2%',,-&RQQHFWRU
Chrysler Cars, Light Trucks & Vans
Make/Model
Year
Engine
DLC
Acclaim
89-95
ALL
SCI
Aries K, Reliant
89
89-91
ALL
ALL
SCI
SCI
92-93
ALL
SCI
94-95
ALL
SCI
Cherokee
91-95
ALL
Cirrus
95
ALL
Comanche
91-92
ALL
Concorde,
Intrepid, Vision
93-95
ALL
Caravan,
Grand Caravan
Location
Front of left shock/strut tower, near the
SBEC/SMEC module.
At front of left shock/strut tower.
In front of left fender panel below
relays.
In engine compartment near PCM
module.
In engine compartment on left side of
firewall.
In front of left fender apron behind air
cleaner.
Left of steering column under dash on
OBD II
body control module
In front of left fender apron behind air
SCI
cleaner.
SCI
LH
Right of steering column under dash.
Engine compartment, right corner of
firewall
At front of left shock/strut tower.
Front of left shock/strut tower near
SBEC/PCM.
Dakota
91
ALL
SCI
Daytona
89-93
ALL
SCI
Dynasty
89-93
ALL
SCI
90
ALL
SCI
91-93
ALL
SCI
Grand Cherokee,
Grand Wagoneer
93-
ALL
SCI
Horizon, Omni
89-90
ALL
SCI
Lancer
LeBaron Coupe,
Convertible
LeBaron Sedan,
GTS
LHS
Monaco, Premier
Neon
89
ALL
SCI
Front of left side shock tower by relays
& SMEC.
At front of left shock/strut tower.
89-95
ALL
SCI
At front of left shock/strut tower.
89-95
ALL
94-95
91-92
95
ALL
ALL
ALL
Fifth Avenue,
Imperial
In engine compartment near air filter
housing.
On front of left fender panel by
SMEC/SBAC.
Right rear of engine compartment.
Front of left shock/strut tower near
SBEC/PCM.
LH
Right of steering column under dash.
SCI On left fender pane next to SBEC.
OBD II Under left side of dash.
SCI
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A–7
A
Data Link Connectors • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Chrysler Cars, Light Trucks & Vans
Make/Model
Year
89-93
Engine
ALL
DLC
SCI
New Yorker
94-95
ALL
89-95 5.2L, 5.9L
LH
SCI
89-95 3.9L, 5.9L
Diesel
8.0L
94-95
SCI
89-90 5.2L, 5.9L
91-95 5.2L, 5.9L
SCI
SCI
92-95 5.2L CNG
89-95
3.9L
SCI
SCI
89-90
ALL
SCI
91-93
ALL
SCI
95
ALL
OBD II
89-95
ALL
SCI
Spirit
89-95
ALL
SCI
Stealth
94-95
ALL
OBD II
Stratus
95
ALL
OBD II
Summit, Colt
94-95
ALL
OBD II
Pickup D/W, RAM
series
Ram Wagon/Van,
B-Van
Ramcharger
Sebring
Coupe/Avenger
Shadow,
Sundance
Talon
Town & County
A
Voyager, Grand
Voyager
Wrangler
SCI
95
ALL
OBD II
90-91
ALL
SCI
92-93
ALL
SCI
94-95
ALL
SCI
89-91
ALL
SCI
92-93
ALL
SCI
94-95
ALL
SCI
91-95
ALL
SCI
Location
Front of left shock tower near the
SBEC/SMEC module.
Right of steering column under dash.
On left side of firewall near master
cylinder.
In engine compartment on right side of
firewall.
In engine compartment on right side of
firewall.
On left side of firewall below cowl.
On center of firewall next to
SBEC/PCM.
Under center of dash panel.
In engine compartment on right side of
firewall.
On left side corner of firewall below
cowl.
In engine compartment, near master
cylinder.
Under left side of dash, right side of
steering column.
Front of left shock/strut tower near
SBEC/PCM.
Front of left shock/strut tower near
SBEC/PCM.
Under left side of dash, right side of
steering column.
Left of steering column under dash on
body control module
Under left side of dash, right side of
steering column.
Under left side of dash, right side of
steering column.
On front of left fender panel below
relays.
In engine compartment near PCM
module.
In engine compartment on left side of
firewall.
In front of left fender panel below
relays.
In engine compartment near PCM
module.
In engine compartment near PCM
module on left side of firewall.
In front of left fender apron behind air
cleaner near SBEC.
A – 8• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Data Link Connectors
Data Link Connector Notes
A
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A–9
Data Link Connectors • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Data Link Connector Notes
A
A – 10• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
$SSHQGL[% *ORVVDU\
A/C:
Air Conditioner
A/D:
Analog to Digital
A/F:
Air/Fuel ratio. The proportion of air and
fuel delivered to the cylinder for
combustion. For example, an A/F ratio of
14:1 denotes 14 times as much air as fuel
in the mixture. A typical ideal A/F ratio is
14.7:1.
ABS:
Anti-lock Brake System
AC Clutch Relay:
The PCM uses this relay to energize the
A/C clutch, turning the A/C system on or
off.
AC Pressure Sensor:
Measures air conditioning refrigerant
pressure and sends a voltage signal to
the PCM.
AC Pressure Switch:
A mechanical switch connected to the
A/C refrigerant line. The switch is
activated (sending a signal to the PCM)
when the A/C refrigerant pressure
becomes too low.
Actuator:
Actuators such as relays, solenoids, and
motors allow the PCM to control the
operation of vehicle systems.
Air Injection Reaction (AIR) System:
An emission control system operated by
the PCM. During cold starts, an air pump
injects outside air into the exhaust
manifold to help burn hot exhaust gases.
This reduces pollution and speeds
warm-up of oxygen sensors and catalytic
converters. After the engine is warm, the
air will either be “dumped” back to the
atmosphere (or into the air cleaner
assembly) or sent to the catalytic
converter.
Bank 1:
The standard way of referring to the bank
of cylinders containing cylinder #1. In-line
engines have only one bank of cylinders.
Most commonly used to identify the
location of oxygen sensors. SeeO2S,
Sensor 1, Sensor 2.
Bank 2:
The standard way of referring to the bank
of cylinders opposite cylinder #1. Found
on V-6, V-8, V-10, etc. and horizontally
opposed engines. Most commonly used
to identify the location of oxygen sensors.
SeeO2S, Sensor1,Sensor 2.
BARO:
Barometric Pressure Sensor. See MAP
Sensor.
BBV:
Brake Boost Vacuum (Sensor)
BCM:
Body Control Module
Boost Control Solenoid:
A solenoid that is energized by the PCM,
in order to control supercharger boost
pressure.
Brake Switch Signal:
An input signal to the PCM indicating that
the brake pedal is being pressed. This
signal is typically used to disengage
Cruise Control systems and Torque
Converter Clutch (TCC) solenoids. See
also TCC.
CAM:
Camshaft Position Sensor. Sends a
frequency signal to the PCM in order to
synchronize fuel injector and spark plug
firing.
CAN:
Controller Area Network
CARB:
California Air Resources Board.
Governing body for emissions control in
California.
APP:
Acceleration Pedal Position (Sensor)
CKP REF:
Crankshaft Position Reference.
ASR:
Acceleration Slip Regulation
CKP:
Crankshaft Position. See CPS.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••• B–1
B
Glossary • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Closed Loop (CL):
A feedback system that uses the O2
Sensor(s) to monitor the results of
combustion. Based on the signal(s) from
the O2 sensor(s), the PCM modifies the
air/fuel mixture to maintain optimum
performance with lowest emissions. In
closed loop mode, the PCM can “fine
tune” control of a system to achieve an
exact result.
CMP:
Camshaft Position Sensor
CO:
Carbon Monoxide
Continuous Memory Codes:
See Pending Codes.
CPS:
Crankshaft Position Sensor. Sends a
frequency signal to the PCM. It is used to
reference fuel injector operation and
synchronize spark plug firing on
distributorless ignition systems (DIS).
DI/DIS:
Direct Ignition/Distributorless Ignition
System. A system that produces the
ignition spark without the use of a
distributor.
DPFE:
Differential Pressure Feedback – Exhaust
Gas Recirculation Sensor
DTC:
Diagnostic Trouble Code. An
alphanumeric identifier for a fault
condition identified by the On Board
Diagnostic System.
Duty Cycle:
A term applied to signals that switch
between “on” and “off”. Duty cycle is the
percentage of time the signal is “on”. For
example, if the signal is “on” only one
fourth of the time, then the duty cycle is
25%. The PCM uses duty cycle type
signals to maintain precise control of an
actuator.
CTS:
Coolant Temperature Sensor. A
resistance sensor that sends a voltage
signal to the PCM indicating the
temperature of the coolant. This signal
tells the PCM whether the engine is “cold”
or “warm”.
EBCM:
Electronic Brake Control Module
CVRTD:
Continuous Variable Real Time Damping
ECT:
Engine Coolant Temperature sensor. See
CTS.
D/R:
Drive/Reverse
Data Link Connector (DLC):
Connector providing access and/or
control of the vehicle information,
operating conditions, and diagnostic
information. Vehicles with OBD II use a
16-pin connector located in the
passenger compartment.
Data Stream:
The actual data communications sent
from the vehicle’s PCM to the data
connector.
DEPS:
Digital Engine Position Sensor.
B Detonation:
See Knock.
EBTCM:
Electronic Brake/Traction Control Module
ECM
Engine Control Module or Electronic
Control Module
EEPROM:
Electrically Erasable Programmable Read
Only Memory
EFE:
Early Fuel Evaporation
EFI:
Electronic Fuel Injection. Any system
where a computer controls fuel delivery to
the engine by using fuel injectors.
EGR:
Exhaust Gas Recirculation. The PCM
uses the EGR system to recirculate
exhaust gases back into the intake
manifold to reduce emissions. EGR
Recirculation is used only during warm
engine cruise conditions. EGR flow at
other times can cause stalling or no
starts.
B–2 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Glossary
EOP:
Engine Oil Pressure (Switch)
EOT
Engine Oil Temperature (Sensor)
EPA:
Environmental Protection Agency.
ESC:
Electronic Spark Control. An ignition
system function that warns the PCM
when “knock” is detected. The PCM will
then retard spark timing to eliminate the
knocking condition.
EST:
Electronic Spark Timing. An ignition
system that allows the PCM to control
spark advance timing. The PCM
determines optimum spark timing from
sensor information — engine speed,
throttle position, coolant temperature,
engine load, vehicle speed, Park/Neutral
switch position, and knock sensor
condition.
EVAP:
Evaporative Emissions System.
FC:
Fan Control
Freeze Frame:
A block of memory containing the vehicle
operating conditions for a specific time.
Ground (GND):
An electrical conductor used as a
common return for an electric circuit(s)
and with a relative zero potential
(voltage).
Hall Effect Sensor:
Any of a type of sensor utilizing a
permanent magnet and a transistorized
Hall Effect switch. Hall Effect type
sensors may be used to measure speed
and position of the crankshaft or camshaft
— for spark timing and fuel injector
control.
HO2S:
Heated Oxygen Sensor. See O2S.
HVAC:
Heating, Ventilation & Air Conditioning
(System)
I/M:
Inspection and Maintenance. An emission
control program.
IAC:
Idle Air Control. A device mounted on the
throttle body which adjusts the amount of
air bypassing a closed throttle so that the
PCM can control idle speed.
IAT:
Intake Air Temperature (Sensor)
ICM:
Ignition Control Module.
IMRC:
Intake Manifold Runner Control
IPC:
Instrument Panel Cluster
ISC:
Idle Speed Control. A small electric motor
mounted on the throttle body and
controlled by the PCM. The PCM can
control idle speed by commanding the
ISC to adjust its position.
ISO:
International Organization of
Standardization.
KAM:
Keep Alive Memory
Knock Sensor (KS):
Used to detect engine detonation or
“knock.” The sensor contains a
piezoelectric element and is threaded into
the engine block. Special construction
makes the element sensitive only to
engine vibrations associated with
detonation.
Knock:
Uncontrolled ignition of the air/fuel
mixture in the cylinder. Also referred to as
detonation or ping. Knock indicates
extreme cylinder pressures or “hotspots”
which are causing the air/fuel mixture to
detonate prematurely.
KOEO:
Key On — Engine Off.
KOER:
Key On — Engine Running.
LCD:
Liquid Crystal Display.
LT:
Long Term fuel trim.
B
M/T:
Manual transmission or manual transaxle.
••••••••••••••••••••••••••••••••••••••••••••••••••••••••
B–3
Glossary • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
MAF:
Mass Air Flow Sensor. Measures the
amount and density of air entering the
engine and sends a frequency or voltage
signal to the PCM. The PCM uses this
signal in its fuel delivery calculations.
MAP:
Manifold Absolute Pressure Sensor.
Measures intake manifold vacuum or
pressure and sends a frequency or
voltage signal (depending on sensor type)
to the PCM. This gives the PCM
information on engine load for control of
fuel delivery, spark advance, and EGR
flow.
MAT:
Manifold Air Temperature sensor. A
resistance sensor in the intake manifold
that sends a voltage signal to the PCM
indicating the temperature of the
incoming air. The PCM uses this signal
for fuel delivery calculations.
MIL:
Malfunction Indicator Lamp. The MIL is
most commonly known as the “Check
Engine” or “Service Engine Soon” light. A
required on-board indicator to alert the
driver of an emission-related malfunction.
Monitor:
A test performed by the on-board
computer to verify proper operation of
emission related systems or components.
MPFI or MFI:
Multi-Port Fuel Injection. MPFI is a fuel
injection system using one (or more)
injector(s) for each cylinder. The injectors
are mounted in the intake manifold, and
fired in groups rather than individually.
NOx:
Oxides of Nitrogen. A pollutant. The EGR
system injects exhaust gases into the
intake manifold to reduce these gases at
the tailpipe.
O2S:
Oxygen Sensor. Generates a voltage of
0.6 to 1.1 volts when the exhaust gas is
rich (low oxygen content). The voltage
changes to 0.4 volts or less when the
B exhaust gas is lean (high oxygen
content). This sensor only operates after
it reaches a temperature of approximately
349×C (660×F). O2 sensors are usually
found both upstream and downstream of
the catalytic converter. The PCM uses
these sensors to fine tune the air-fuel
ratio and to monitor the efficiency of the
catalytic converter. See Bank 1, Bank 2,
Sensor 1, Sensor 2.
OBD II:
On-Board Diagnostics, Second
Generation. OBD II is a U.S.
Government-mandated standard
requiring all cars and light trucks to have
a common data connector, connector
location, communication protocol, DTCs
and code definitions. OBD II first
appeared on vehicles in late 1994, and is
required to be present on all cars sold in
the US after January 1, 1996.
ODM:
Output Device Monitor.
Open Loop (OL):
A control system mode that does not
monitor the output to verify if the desired
results were achieved. A fuel delivery
system will usually operate in open loop
mode during cold engine warm-up
because the oxygen sensors are not yet
ready to send a signal. Without the
oxygen sensor signal, the computer
cannot check the actual results of
combustion.
PCM:
Powertrain Control Module. The “brains”
of the engine control system housed in a
metal box with a number of sensors and
actuators connected via a wiring harness.
Its job is to control fuel delivery, idle
speed, spark advance timing, and
emission systems. The PCM receives
information from sensors, then energizes
various actuators to control the engine.
The PCM is also known as the ECM
(Engine Control Module).
Pending Codes:
Also referred to as Continuous Memory
codes and Maturing Diagnostic Trouble
codes. These codes are set when
intermittent faults occur while driving. If
the fault does not occur after a certain
number of drive cycles, the code is
erased from memory.
PID:
Parameter Identification. Identifies an
address in memory which contains
vehicle operating information.
B–4 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Glossary
PNP:
Park/Neutral Position. This is a switch
that tells the PCM when the gear shift
lever is in the Park or Neutral position.
When in Park or Neutral, the PCM will
operate the engine in an “idle” mode.
PROM:
Programmable Read-Only Memory. The
PROM contains programming information
the PCM needs to operate a specific
vehicle model/engine combination.
PSPS:
Power Steering Pressure Switch
Purge Solenoid:
Controls the flow of fuel vapors from the
carbon canister to the intake manifold.
The canister collects vapors evaporating
from the fuel tank, preventing them from
escaping to the atmosphere and causing
pollution. During warm engine cruise
conditions, the PCM energizes the Purge
Solenoid so the trapped vapors are drawn
into the engine and burned.
PWM:
Pulse Width Modulated
PZM:
Platform Zone Module
QDM:
Quad Driver Module
RAM:
Random Access Memory
Relay:
An electromechanical device in which
connections in one circuit are switched
Scan Tool:
A device that interfaces with and
communicates information on a data link.
SDM:
Sensing and Diagnostic Module
Sensor 1:
A standard term used to identify the
location of oxygen sensors. Sensor 1 is
located upstream of the catalytic
converter. See O2S, Bank 1, Bank 2.
Sensor 2:
A standard term used to identify the
location of oxygen sensors. Sensor 2 is
located downstream of the catalytic
converter. See O2S, Bank 1, Bank 2.
Sensor:
Any device that reports information to the
PCM. The job of the sensor is to convert
a parameter such as engine temperature
into an electrical signal that the PCM can
understand.
SFI or SEFI:
Sequential Fuel Injection or Sequential
Electronic Fuel Injection. A fuel injection
system that uses one or more injectors
for each cylinder. The injectors are
mounted in the intake manifold and are
fired individually.
Solenoid:
A device consisting of an electrical coil
which when energized, produces a
magnetic field in a plunger, which is
pulled to a central position. A solenoid
may be used as an actuator in a valve or
switch.
Reluctance Sensor:
A type of sensor typically used to
measure crankshaft or camshaft Speed
and/or position, driveshaft speed, and
wheel speed
ST:
Short Term fuel trim.
ROM:
Read-Only Memory. Permanent
programming information stored inside
the PCM, containing the information the
PCM needs to operate a specific vehicle
model/engine combination.
TAC:
Throttle Actuator Control
RPM:
Revolutions Per Minute
SAE:
Society of Automotive Engineers.
STS:
Service Throttle Soon
TBI:
Throttle Body Injection. A fuel injection
system having one or more injectors
mounted in a centrally located throttle
body, as opposed to positioning the
injectors close to an intake valve port. TBI
is also called Central Fuel Injection (CFI)
in some vehicles.
TCC:
Torque Converter Clutch
••••••••••••••••••••••••••••••••••••••••••••••••••••••••
B–5
B
Glossary • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
TCM:
Transmission Control Module
TCS:
Traction Control System
TDC:
Top Dead Center. When a piston is at its
uppermost position in the cylinder.
TFP:
Transmission Fluid Pressure
TFT:
Transmission Fluid Temperature (Sensor)
Throttle Body:
A device which performs the same
function as a carburetor in a fuel injection
system. On a throttle body injection (TBI)
system, the throttle body is both the air
door and the location of the fuel injectors.
On port fuel injection systems (PFI, MPFI,
SFI, etc.), the throttle body is simply an
air door. Fuel is not added until the
injectors at each intake port are activated.
In each case, the throttle body is attached
to the accelerator pedal.
dashboard on the driver’s side, visible
from outside the car. The VIN includes
information about the car, including where
it was built, body and engine codes,
options, and a sequential build number.
VSS:
Vehicle Speed Sensor. Sends a
frequency signal to the PCM. The
frequency increases as the vehicle moves
faster to give the PCM vehicle speed
information used to determine shift points,
engine load, and cruise control functions.
VTD:
Vehicle Theft Deterrent
WOT:
Wide-Open Throttle. The vehicle operating
condition brought about when the throttle is
completely (or nearly) open. The PCM will
typically deliver extra fuel to the engine and
de-energize the A/C compressor at this time for
acceleration purposes. The PCM uses a switch
or the Throttle Position Sensor to identify the
WOT condition.
TPS:
Throttle Position Sensor.
Potentiometer-type sensor connected to
the throttle shaft. Its voltage signal output
increases as the throttle is opened. The
PCM uses this signal to control many
systems such as idle speed, spark
advance, fuel delivery, etc.
TTS:
Transmission Temperature Sensor. A
resistance sensor mounted in the
transmission housing in contact with the
transmission fluid. It sends a voltage
signal to the PCM indicating the
temperature of the transmission.
VECI:
Vehicle Emission Control Information. A
decal located in the engine compartment
containing information about the emission
control systems found on the vehicle. The
VECI is the authoritative source for
determining whether a vehicle is OBD
II-compliant.
VIN:
B Vehicle Identification Number. This is the
factory-assigned vehicle serial number.
This number is stamped on a number of
locations throughout the vehicle, but the
most prominent location is on top of the
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Glossary Notes
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©2004 ACTRON MANUFACTURING CO.
All rights reserved.
0002-004-2421
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