Multiport Fuel Injection System Service manual

13A-1

GROUP 13A

MULTIPORT FUEL

INJECTION (MFI)

CONTENTS

GENERAL INFORMATION . . . . . . . .

13A-2

GENERAL SPECIFICATION(S). . . . .

13A-5

SERVICE SPECIFICATION(S) . . . . .

13A-6

SEALANT AND ADHESIVE. . . . . . . .

13A-6

SPECIAL TOOL . . . . . . . . . . . . . . . . .

13A-7

MULTIPORT FUEL INJECTION (MFI)

DIAGNOSIS . . . . . . . . . . . . . . . . . . . .

13A-9

TROUBLESHOOTING STRATEGY . . . . . . 13A-9

DIAGNOSTIC FUNCTION . . . . . . . . . . . . . 13A-9

FAIL-SAFE FUNCTION REFERENCE

TABLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13A-40

DIAGNOSTIC TROUBLE CODE CHART . . 13A-44

SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 13A-48

DIAGNOSTIC TROUBLE CODE

PROCEDURES. . . . . . . . . . . . . . . . . . . . . . 13A-51

SYMPTOM PROCEDURES . . . . . . . . . . . . 13A-737

DATA LIST REFERENCE TABLE . . . . . . . 13A-852

GENERAL SCAN TOOL (GST) MODE 01

REFERENCE TABLE . . . . . . . . . . . . . . . . . 13A-866

ACTUATOR TEST REFERENCE TABLE. . 13A-871

CHECK AT THE ENGINE CONTROL MODULE

(ECM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13A-872

INSPECTION PROCEDURE USING AN

OSCILLOSCOPE . . . . . . . . . . . . . . . . . . . . 13A-881

ON-VEHICLE SERVICE. . . . . . . . . . .

13A-891

COMPONENT LOCATION . . . . . . . . . . . . . 13A-891

THROTTLE BODY (THROTTLE VALVE AREA)

CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . 13A-897

FUEL PRESSURE TEST . . . . . . . . . . . . . . 13A-897

FUEL PUMP CONNECTOR DISCONNECTION

(HOW TO REDUCE PRESSURIZED FUEL

PRESSURE) . . . . . . . . . . . . . . . . . . . . . . . . 13A-901

FUEL PUMP OPERATION CHECK . . . . . . 13A-901

MULTIPORT FUEL INJECTION (MFI) RELAY

CONTINUITY CHECK . . . . . . . . . . . . . . . . . 13A-903

FUEL PUMP RELAY CONTINUITY

CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13A-903

INJECTOR RELAY CONTINUITY CHECK . 13A-905

THROTTLE ACTUATOR CONTROL MOTOR

RELAY CONTINUITY CHECK . . . . . . . . . . 13A-905

FUEL PUMP CIRCUIT RESISTOR CHECK 13A-906

INTAKE AIR TEMPERATURE SENSOR

CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13A-906

ENGINE COOLANT TEMPERATURE

SENSOR CHECK . . . . . . . . . . . . . . . . . . . . 13A-907

HEATED OXYGEN SENSOR CHECK . . . . 13A-908

INJECTOR CHECK . . . . . . . . . . . . . . . . . . . 13A-910

THROTTLE ACTUATOR CONTROL MOTOR

CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13A-911

ENGINE OIL CONTROL VALVE CHECK . . 13A-912

EVAPORATIVE EMISSION VENTILATION

SOLENOID CHECK . . . . . . . . . . . . . . . . . . 13A-913

EVAPORATIVE EMISSION PURGE

SOLENOID CHECK . . . . . . . . . . . . . . . . . . 13A-913

INJECTOR . . . . . . . . . . . . . . . . . . . . .

13A-914

REMOVAL AND INSTALLATION . . . . . . . . 13A-914

THROTTLE BODY ASSEMBLY . . . . .

13A-918


ENGINE CONTROL RESISTOR. . . . .

13A-919


ENGINE CONTROL MODULE

(ECM) . . . . . . . . . . . . . . . . . . . . . . . . .

13A-920


13A-2 MULTIPORT FUEL INJECTION (MFI)

GENERAL INFORMATION


.

The Multiport Fuel Injection System consists of sensors which detect the engine conditions, the ENGINE

CONTROL MODULE (ECM) which controls the system based on signals from these sensors, and actuators which operate under the control of the ECM.

The ECM carries out activities such as fuel injection control, idle air control, and ignition timing control.

In addition, the ECM is equipped with several diagnostic test modes which simplify troubleshooting when a problem develops.

M1131000103669

.

IDLE AIR CONTROL

The idle speed is kept at the optimum speed by controlling the amount of air that passes through the throttle valve in accordance with changes in idling conditions and engine load during idling.

The ECM drives the throttle actuator control motor to keep the engine running at the pre-set idle target speed in accordance with the engine coolant temperature and A/C and other electrical load. In addition, when the air conditioning switch is turned off and on while the engine is idling, the throttle actuator control motor adjusts the throttle valve pass-through air amount according to the engine load conditions to avoid fluctuations in the engine speed.

.

FUEL INJECTION CONTROL

The injector drive times and injection timing are controlled so that the optimum air/fuel mixture is supplied to the engine to correspond to the continually-changing engine operation conditions.

A single injector is mounted at the intake port of each cylinder. Fuel is sent under pressure from the fuel tank to the fuel injectors by the fuel pump, with the pressure being regulated by the fuel pressure regulator. The regulated fuel is distributed to each of the injectors.

Fuel injection is normally carried out once for each cylinder for every two rotations of the crankshaft.

The firing order is 1-3-4-2. Each cylinder has a dedicated fuel injector. This is called multiport.

The ECM provides a richer air/fuel mixture by carrying out "open-loop" control when the engine is cold or operating under high load conditions in order to maintain engine performance.In addition, when the engine is under normal operating temperature after warming-up, the ECM controls the air/fuel mixture by using the heated oxygen sensor signal to carry out

"closed-loop" control. The closed-loop control achieves the theoretical air/fuel mixture ratio where the catalytic converter can obtain the maximum cleaning performance.

.

DIAGNOSTIC TEST MODE

• When a fault is detected in one of the sensors or actuators related to emission control, the Malfunction Indicator Lamp (SERVICE ENGINE

SOON or Check Engine Lamp) illuminates to warn the driver.

• When a fault is detected in one of the sensors or actuators, a diagnostic trouble code corresponding to the fault is stored in the ECM.

• The RAM data inside the ECM that is related to the sensors and actuators can be read with the scan tool. In addition, the actuators can be controlled by scan tool MB991958 (M.U.T.-III sub assembly) under certain circumstances.

.

THROTTLE VALVE OPENING CONTROL

This system electrically controls the opening of the throttle valve. The ECM detects the amount of travel of the accelerator pedal via the accelerator pedal position sensor, and controls the actuation of the throttle actuator control motor, which is mounted on the throttle body, in order to attain the target throttle valve opening that has been predetermined in accordance with driving conditions.

.

.

IGNITION TIMING CONTROL

The ignition power transistor located in the ignition primary circuit turns ON and OFF to control the primary current flow to the ignition coil. This controls the ignition timing to provide the optimum ignition timing with respect to the engine operating conditions. The ignition timing is determined by the ECM from engine speed, intake air volume, engine coolant temperature, and atmospheric pressure.

TSB Revision



OTHER CONTROL FUNCTIONS

Fuel Pump Control

• Turns the fuel pump relay ON so that current is supplied to the fuel pump while the engine is cranking or running.

• In accordance with the driving conditions, switches the actuation condition of the fuel pump.

A/C Compressor Clutch Relay Control

• Turns the compressor clutch of the A/C ON and

OFF.

Engine Oil Control Valve Control

• The ECM carries out the duty control of the engine oil control valve according to the operation condition. This varies the phase angle of the camshaft to optimize the valve timing.

13A-3

Intake Charge Pressure Control

• Control the intake charge pressure by controlling the duty of the turbocharger wastegate solenoid.

Generator Output Current Control

• Prevent generator output current from increasing suddenly and idle speed from dropping at times such as when the headlights are turned on.

Evaporative Emission Purge Control

• (Refer to GROUP 17, Emission Control − Evaporative Emission Control System

− General Information P.17-74 .)

TSB Revision



MULTIPORT FUEL INJECTION (MFI) SYSTEM DIAGRAM

Sense

1 Mass airflow sensor

2 Intake air temperature sensor 1

3 Throttle position sensor (main)

4 Throttle position sensor (sub)

5 Manifold absolute pressure sensor

6 Intake air temperature sensor 2

7 Engine coolant temperature sensor

8 Intake camshaft position sensor

9 Exhaust camshaft position sensor

10 Crankshaft position sensor

11 Knock sensor

12 Heated oxygen sensor (front)

13 Heated oxygen sensor (rear)

14 Fuel tank differential pressure sensor

15 Fuel tank temperature sensor

Accelerator pedal position sensor (main)

Accelerator pedal position sensor (sub)

Engine oil pressure switch

Power steering pressure switch

Generator FR terminal

Generator L terminal

Clutch pedal position switch <M/T>

Ignition switch-IG

Ignition switch-ST

Power supply

CAN communication (input signal)

Decide

ECM

(with barometric pressure sensor)

Act

1 Intake engine oil control valve

2 Exhaust engine oil control valve

3 Throttle actuator control motor

4 Injector

5 Evaporative emission purge solenoid

6 Evaporative emission ventilation

solenoid

7 Turbocharger wastegate solenoid 1

8 Turbocharger wastegate solenoid 2

Ignition coil, ignition power transistor

Multiport fuel injection (MFI) relay

Fuel pump relay 1

Fuel pump relay 2

Starter relay

Throttle actuator control motor relay

Generator G terminal

Heated oxygen sensor heater

A/C compressor relay

CAN communication (output signal)

3 Throttle position sensor (main)

4 Throttle position sensor (sub)

3 Throttle actuator control motor

5 Evaporative emission

purge solenoid

Bypass valve

1 Mass airflow sensor

2 Intake air

temperature

sensor 1

Check valve

Fuel pressure regulator

To fuel tank

1 Intake engine

oil control valve

2

Exhaust engine oil control valve

5 Manifold

absolute

pressure

sensor

6 Intake air

temperrature

sensor 2

8

Intake camshaft position sensor

4 Injector

14 Fuel tank

differential

puressure

sensor

Air inlet

7 Turbocharger

wastegate solenoid 1

Turbocharger wastegate actuator

Evaporative emission canister

7 Engine coolant

temperature sensor

11 Knock sensor

Fuel pump

6 Evaporative

emission

ventilation

solenoid

10 Crankshaft position sensor

9 Exhaust camshaft position sensor

Fuel tank

Fuel level sensor

15 Fuel tank

temperature

sensor

8 Turbocharger

wastegate solenoid 2

12 Heated oxygen sensor (front)

13 Heated oxygen sensor (rear)

AK703839

AB

NOTE: For the vacuum routing, refer to GROUP 17, Emission Control

−

Vacuum Hoses

−

Vacuum Hose Routing P.17-70 .

TSB Revision

ITEMS

Throttle body

Engine control module (ECM)

Sensors

Actuators

Fuel pressure regulator


GENERAL SPECIFICATIONS

GENERAL SPECIFICATIONS

13A-5

Throttle bore mm (in.)

Throttle position sensor

Throttle actuator control motor

Identification model No.

Mass airflow sensor

Barometric pressure sensor

SPECIFICATIONS

60 (2.36)

Hall element type

DC motor type, having brushes

E6T72671 <M/T>

E6T72672 <TC-SST>

Heat sensitizing type

Semi conductor type

Thermistor type

Thermistor type

Thermistor type

Intake air temperature sensor 1


Engine coolant temperature sensor

Heated oxygen sensor

Accelerator pedal position sensor

Camshaft position sensor

Crankshaft position sensor

Knock sensor

Power steering pressure switch

Manifold absolute pressure sensor

Clutch pedal position switch <M/T>

Multiport fuel injection (MFI) relay

Fuel pump relay

Throttle actuator control motor relay

Injector type and number

Zirconia type

Hall element type

Magneto resistance element type

Magneto resistance element type

Piezoelectric type

Contact switch type

Semiconductor type

Contact switch type

Contact switch type

Contact switch type

Contact switch type

Electromagnetic type, 4

Injector identification mark

Engine oil control valve

JME600G

Duty cycle type solenoid valve

Evaporative emission purge solenoid Duty cycle type solenoid valve

Turbocharger wastegate solenoid Duty cycle type solenoid valve

Regulator pressure kPa (psi) 329 (48)

M1131000201240

TSB Revision


SERVICE SPECIFICATIONS

SERVICE SPECIFICATIONS

M1131000302154

ITEMS

Fuel pressure kPa (psi) Vacuum hose disconnected

STANDARD VALUE

310 − 345 (45 − 50) at curb idle

Intake air temperature sensor 1 resistance k

Intake air temperature sensor 2 resistance k

Ω

Ω

Engine coolant temperature sensor resistance k

Ω

Heated oxygen sensor output voltage V

Heated oxygen sensor heater resistance

Injector coil resistance

Ω

Ω Front

Throttle actuator control motor coil resistance

Fuel pump circuit resistor resistance

Ω

Intake engine oil control valve coil resistance

Ω

Exhaust engine oil control valve coil resistance

Vacuum hose connected Approximately 260 (38) at curb idle

−20° C (−4° F)

0 ° C (32° F)

20

° C (68° F)

40

° C (104° F)

60

° C (140° F)

80 ° C (176° F)

13

− 17

5.4

2.3

1.0

− 6.6

− 3.0

− 1.5

0.56

0.31

− 0.76

− 0.43

13

− 18

−20° C (−4° F)

0

° C (32° F)

20 ° C (68° F)

40

° C (104° F)

60

° C (140° F)

80

° C (176° F)

5.1

− 6.9

2.0 − 3.0

0.9

− 1.5

0.40

− 0.78

0.23

− 0.42

14 − 17

−20° C (−4° F)

0

° C (32° F)

20

° C (68° F)

40 ° C (104° F)

60 ° C (140° F)

80

° C (176° F)

Rear

Ω

Ω

5.1

2.1

− 6.5

− 2.7

0.9 − 1.3

0.48 − 0.68

0.26

− 0.36

0.6

− 1.0

4.5

− 8.0

4.5 − 8.0

10.5

− 13.5 [at 20° C (68° F)]

0.3

− 80 [at 20° C (68° F)]

0.45

− 0.65 [at 20° C (68° F)]

6.9

− 7.9 [at 20° C (68° F)]

6.9

− 7.9 [at 20° C (68° F)]

SEALANT AND ADHESIVE

M1131000501490

ITEM SPECIFIED SEALANT

Engine coolant temperature sensor threaded portion LOCTITE 262, Three bond 1324N or equivalent

TSB Revision

Tool

A

B

C

D

E

MB991824

MB991827

MB991910

DO NOT USE

MB991911

DO NOT USE

MB991914


SPECIAL TOOL

13A-7

SPECIAL TOOL

Application

• Reading diagnostic trouble code

• MFl system inspection

• Measurement of fuel pressure

M1131000602520

Tool number and name Supersession

MB991958

A: MB991824

B: MB991827

C: MB991910

D: MB991911

E: MB991914

F: MB991825

G: MB991826

M.U.T.-III sub assembly

A: Vehicle

Communication Interface

(V.C.I.)

B: M.U.T.-III USB Cable

C: M.U.T.-III Main

Harness A (Vehicles with

CAN communication system)

D: M.U.T.-III Main

Harness B (Vehicles without CAN communication system)

E: M.U.T.-III Main

Harness C (for Daimler

Chrysler models only)

F: M.U.T.-III

Measurement Adapter

G: M.U.T.-III Trigger

Harness

MB991824-KIT

NOTE: G: MB991826

M.U.T.-III Trigger

Harness is not necessary when pushing V.C.I.

ENTER key.

CAUTION

For vehicles with CAN communication, use

M.U.T.-III main harness

A to send simulated vehicle speed. If you connect M.U.T.-III main harness B instead, the

CAN communication does not function correctly.

F

MB991825

G

MB991826

MB991958

MB992110

Power plant ECU check harness

−

• Inspection using an oscilloscope

• Inspection of the engine control module

(ECM) terminal voltage check

MB992110

TSB Revision

13A-8

Tool


SPECIAL TOOL

Tool number and name Supersession

MB991709

Test harness

MB991709-01

Application

Inspection using an oscilloscope

MB991658

MB991658

Test harness

MB992049

Tool not available

MB992049-01

• Inspection using an oscilloscope

• Inspection of throttle position sensor

• Inspection of heated oxygen sensor

• Inspection of engine oil control valve

Measurement of fuel pressure

MB992049

MB992001 Hose adaptor Measurement of fuel pressure

MB992001

MB991981

Fuel pressure gauge set

Tool not available

MB991981

MB992076 Injector test set



MB992076

MB992042

Engine coolant temperature sensor wrench

MB992042

MB992106

O-ring installer

−

−

Removal and installation of the engine coolant temperature sensor

Installation of O-ring on injector injection nozzle side

TSB Revision

.


MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

13A-9


TROUBLESHOOTING STRATEGY

M1131150002188

NOTE: If a DTC is erased, its "freeze frame" data will also be erased and system readiness test status will be reset. Store the "freeze frame" data before erasing the DTC.

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure to have exhausted most of the possible ways to find an MFI fault.

1. Gather as much information as possible about the complaint from the customer.

2. Verify that the condition described by the customer exists.

3. Check the vehicle for any MFI Diagnostic Trouble

Code (DTC).

6. If there is a DTC, store the number of the code, then erase the code from the memory using the scan tool.

7. Reconfirm the malfunction symptom and carry out a test drive with the drive cycle pattern.

8. If DTC is set again, carry out an inspection with appropriate diagnostic trouble code procedures.

9. If DTC is not set again, the malfunction is intermittent. For information on how to cope with intermittent malfunctions, refer to GROUP 00,

How to Use Troubleshooting/Inspection Service

Points

− How to Cope with Intermittent

Malfunctions P.00-15 .

4. If you cannot verify the condition and there are no

DTCs, the malfunction is intermittent. For information on how to cope with intermittent malfunctions, refer to GROUP 00, How to Use

Troubleshooting/Inspection Service Points − How to Cope with Intermittent Malfunctions P.00-15 .

5. If you can verify the condition but there are no

DTCs, or the system cannot communicate with the scan tool, refer to the trouble symptom classification table.

10.After repairs are completed, conduct a road test duplicating the complaint set conditions to confirm the malfunction has been corrected.

NOTE: If the engine control module (ECM) is replaced, Immobilizer Encrypted Code Registration should be carried out, refer to GROUP 42B, ID Code

Registration Necessity Judgment Table <Vehicles with KOS> P.42B-12 or GROUP 42C, ID Codes

Registration Judgment Table <Vehicles with WCM>

P.42C-9 .

DIAGNOSTIC FUNCTION

Malfunction indicator lamp

(SERVICE

ENGINE

SOON or check engine lamp)

AK704069AC

M1131155502586

.

MALFUNCTION INDICATOR LAMP (SERVICE

ENGINE SOON OR CHECK ENGINE LAMP)

Among the on-board diagnostic items, Malfunction Indicator

Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates to notify the driver of an emission control malfunction.

However, when an irregular signal returns to normal and the engine control module judges that it has returned to normal, the

Malfunction Indicator Lamp (SERVICE ENGINE SOON or

Check Engine Lamp) will switch off.

Immediately after the ignition switch is turned on, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check

Engine Lamp) is lit for 20 seconds to indicate that the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check

Engine Lamp) operates normally.

NOTE: When the Transmission Control Module (TCM) detects malfunctions related to the TC-SST, the Malfunction indicator

Lamp (SERVICE ENGINE SOON or Check Engine Lamp) is also illuminated.

TSB Revision



P0138

P0139

P0140

P0171

P0172

P0181

P0182

P0183

P0123*

P0125*

P0128

P0131

P0132

P0133

P0134*

P0137

P0108

P0111*

P0112*

P0113*

P0116*

P0117*

P0118*

P0122*

P0096*

P0097*

P0098*

P0101*

P0102*

P0103*

P0106

P0107

Items Indicated by the Malfunction Indicator Lamp

(SERVICE ENGINE SOON or Check Engine Lamp)

DTC

P0011

P0014

P0016

P0017

P0031

P0032

P0037

P0038

P0069

ITEM

Intake variable valve timing system target error

Exhaust variable valve timing system target error

Crankshaft/camshaft (intake) position sensor phase problem

Crankshaft/camshaft (exhaust) position sensor phase problem

Heated oxygen sensor (front) heater circuit low

Heated oxygen sensor (front) heater circuit high

Heated oxygen sensor (rear) heater circuit low

Heated oxygen sensor (rear) heater circuit high

Abnormal correlation between manifold absolute pressure sensor and barometric pressure sensor

Intake air temperature circuit range/performance problem (sensor 2)

Intake air temperature circuit low input (sensor 2)

Intake air temperature circuit high input (sensor 2)

Mass airflow circuit range/performance problem

Mass airflow circuit low input

Mass airflow circuit high input

Manifold absolute pressure circuit range/performance problem

Manifold absolute pressure circuit low input

Manifold absolute pressure circuit high input




Engine coolant temperature circuit range/performance problem

Engine coolant temperature circuit low input

Engine coolant temperature circuit high input

Throttle position sensor (main) circuit low input

Throttle position sensor (main) circuit high input

Insufficient coolant temperature for closed loop fuel control

Coolant thermostat (coolant temperature below thermostat regulating temperature)

Heated oxygen sensor (front) circuit low voltage

Heated oxygen sensor (front) circuit high voltage

Heated oxygen sensor (front) circuit slow response

Heated oxygen sensor (front) circuit no activity detected

Heated oxygen sensor (rear) circuit low voltage

Heated oxygen sensor (rear) circuit high voltage

Heated oxygen sensor (rear) circuit slow response

Heated oxygen sensor (rear) circuit no activity detected

System too lean

System too rich

Fuel tank temperature sensor circuit range/performance

Fuel tank temperature sensor circuit low input

Fuel tank temperature sensor circuit high input

TSB Revision

P0442

P0443

P0446

P0450

P0451

P0452

P0453

P0455

P0304

P0327

P0328

P0335*

P0340*

P0365*

P0420

P0441

DTC

P0201

P0202

P0203

P0204

P0222*

P0223*

P0234

P0243

P0247

P0300

P0301

P0302

P0303

P0456

P0461

P0462

P0463

P0500*

P0506

P0507

P0551

P0554

P0603*

P0606*

P0630*

P0638*

P0642*

P0657*



ITEM

Injector circuit − cylinder 1

Injector circuit

− cylinder 2

Injector circuit

− cylinder 3

Injector circuit

− cylinder 4

Throttle position sensor (sub) circuit low input

Throttle position sensor (sub) circuit high input

Turbocharger wastegate system malfunction

Turbocharger wastegate solenoid 1 circuit

Turbocharger wastegate solenoid 2 circuit

Random/multiple cylinder misfire detected

Cylinder 1 misfire detected




Knock sensor circuit low

Knock sensor circuit high

Crankshaft position sensor circuit

Intake camshaft position sensor circuit

Exhaust camshaft position sensor circuit

Warm up catalyst efficiency below threshold

Evaporative emission control system incorrect purge flow

Evaporative emission control system leak detected (small leak)

Evaporative emission purge solenoid circuit

Evaporative emission ventilation solenoid circuit

Fuel tank differential pressure sensor malfunction

Fuel tank differential pressure circuit range/performance problem

Fuel tank differential pressure circuit low input

Fuel tank differential pressure circuit high input

Evaporative emission control system leak detected (gross leak)

Evaporative emission control system leak detected (very small leak)

Fuel level sensor (main) circuit range/performance

Fuel level sensor circuit low input

Fuel level sensor circuit high input

Vehicle speed signal malfunction

Idle control system RPM lower than expected

Idle control system RPM higher than expected

Power steering pressure switch circuit range/performance

Power steering pressure switch circuit intermittent

EEPROM malfunction

Engine control module main processor malfunction

Vehicle Identification Number (VIN) malfunction

Throttle actuator control motor circuit range/performance

Throttle position sensor power supply

Throttle actuator control motor relay circuit malfunction

TSB Revision

13A-11



P2127*

P2128*

P2135*

P2138*

P2195

P2228*

P2229*

P2252

P1590*

P1603*

P1676*

P2066

P2100*

P2101*

P2122*

P2123*

DTC

P1021

P1025

P1233*

P1234*

P1235*

P1236*

P1237*

P1238*

P1239*

P1241*

P1320

P1506

P1507

P2253

U0101*

U0121*

U0141*

U1180*

ITEM

Intake engine oil control valve circuit

Exhaust engine oil control valve circuit

Throttle position sensor (main) plausibility

Throttle position sensor (sub) plausibility

Mass airflow sensor plausibility

A/D converter

Accelerator pedal position sensor plausibility

Mass airflow sensor plausibility (torque monitor)

Engine RPM plausibility

Torque monitor

Ignition timing retard insufficient

Idle control system RPM lower than expected at low temperature

Idle control system RPM higher than expected at low temperature

TCM to ECM communication error in torque reduction request <TC-SST>

Battery backup circuit malfunction

Variant coding

Fuel level sensor (sub) circuit range/performance

Throttle actuator control motor circuit (open)

Throttle actuator control motor magneto malfunction

Accelerator pedal position sensor (main) circuit low input

Accelerator pedal position sensor (main) circuit high input

Accelerator pedal position sensor (sub) circuit low input

Accelerator pedal position sensor (sub) circuit high input

Throttle position sensor (main and sub) range/performance problem

Accelerator pedal position sensor (main and sub) range/performance problem

Heated oxygen sensor (front) inactive

Barometric pressure circuit low input

Barometric pressure circuit high input

Heated oxygen sensor offset circuit low voltage

Heated oxygen sensor offset circuit high voltage

TC-SST-ECU time-out <TC-SST>

ASC-ECU time-out

ETACS-ECU time-out

Combination meter time-out

NOTE: If the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates because of a malfunction of the engine control module (ECM), communication between the scan tool

MB991958 (M.U.T.-III sub assembly) and the ECM is impossible. In this case, the diagnostic trouble code cannot be read.

NOTE: After the ECM has detected a malfunction, the Malfunction Indicator Lamp (SERVICE ENGINE

SOON or Check Engine Lamp) illuminates when the engine is next turned on and the same malfunction is re-detected. However, for items marked with a "*" in the DTC NO. column, the Malfunction Indicator Lamp

(SERVICE ENGINE SOON or Check Engine Lamp) illuminates only on the first detection of the malfunction.

NOTE: After the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates, it will be switched off under the following conditions.

TSB Revision



13A-13

• When the ECM monitored the powertrain malfunction three times* and met set condition requirements, it detected no malfunction. *: In this case, "one time" indicates from engine start to next engine start.

• For misfiring or a fuel trim malfunction, when driving conditions (engine speed, engine coolant temperature, etc.) are similar to those when the malfunction was first recorded.

• The illuminated MIL for the vehicle identification number related faults is extinguished when the vehicle identification number is detected.

NOTE: Sensor 1 of the heated oxygen sensor indicates the sensor mounted at a position closest to the engine, and sensor 2 of the heated oxygen sensor indicates the sensor mounted at the position second closest to the engine.

TSB Revision

13A-14

Data link connector

MB991910

MB991824

MB991827



HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

CAUTION

To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

1. Ensure that the ignition switch is at the "LOCK" (OFF) position.

2. Start up the personal computer.

3. Connect special tool MB991827 to special tool MB991824 and the personal computer.

4. Connect special tool MB991910 to special tool MB991824.

5. Connect special tool MB991910 to the data link connector.

6. Turn the power switch of special tool MB991824 to the "ON" position.

NOTE: When the special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color.

7. Start the M.U.T.-III system on the personal computer.

NOTE: Disconnecting the scan tool MB991958 is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position.

AC608435 AB

TSB Revision

Data link connector

MB991910

MB991824



13A-15

HOW TO READ AND ERASE DIAGNOSTIC

TROUBLE CODES.



• MB991824: V.C.I.



CAUTION


1. Connect scan tool MB991958 to the data link connector.

2. Turn the ignition switch to the "ON" position.

3. Select "System select."

4. Choose "from 2006 MY" under "MODEL YEAR".

5. Check that "Vehicle Information" contents are correct.

6. Choose "MFI".

7. Select "Diagnostic Trouble Code"

8. If a DTC is set, it is shown.

9. Choose "Erase DTCs" to erase the DTC.

MB991827

AC608435 AB

TSB Revision

13A-16

Data link connector



HOW TO READ DATA LIST



• MB991824: V.C.I.



CAUTION







6. Choose "MFI".

7. Select "Data List."

8. Choose an appropriate item and select the "OK" button.

MB991910

MB991824

MB991827

AC608435 AB

HOW TO PERFORM ACTUATOR TEST



• MB991824: V.C.I.



TSB Revision

Data link connector



13A-17

CAUTION







6. Choose "MFI".

7. Select "Actuator Test."

8. Choose an appropriate item and select the "OK" button.

MB991910

MB991824

MB991827

AC608435 AB

HOW TO DIAGNOSE THE CAN BUS LINES



• MB991824: V.C.I.



TSB Revision

13A-18

Data link connector

MB991910

MB991824

MB991827



AC608435 AB

CAUTION




3. Select "CAN bus diagnosis" from the start-up screen.

4. When the vehicle information is displayed, confirm that it matches the vehicle whose CAN bus lines will be diagnosed.

• If they matches, go to step 8.

• If not, go to step 5.

5. Select the "view vehicle information" button.

6. Enter the vehicle information and select the "OK" button.

7. When the vehicle information is displayed, confirm again that it matches the vehicle whose CAN bus lines will be diagnosed.

• If they matches, go to step 8.

• If not, go to step 5.

8. Select the "OK" button.

9. When the optional equipment screen is displayed, choose the one which the vehicle is fitted with, and then select the

"OK" button.

PROVISIONAL DTCs [OBD-II Test Mode - Results

(Mode 7)]

The general scan tool will display the Provisional DTCs reported by ECM if the ECM detects some malfunction for "Misfire", "Fuel System" and "Comprehensive" monitoring during a

SINGLE Driving Cycle. The intended use of this data is to assist the technician after a vehicle repair, and after clearing diagnostic information, by reporting test result after a SINGLE

Driving Cycle. Note that the test results reported by this mode do not necessarily indicate a faulty component/system. If test results indicate a failure after ADDITIONAL (consecutive) driving, then the Malfunction Indicator Lamp (SERVICE ENGINE

SOON or Check Engine Lamp) will be illuminated and a DTC will set.

TSB Revision



13A-19

MODE 6 REFERENCE TABLE

The engine control module (ECM) monitors the condition of emission control system.

By selecting MODE 6 using scan tool, Test Result and Limit Value (minimum) *1 or (maximum) *2 about the main items of emission control system which ECM monitors can be confirmed. The value at the last monitoring is output by ECM as a test result.

ON-BOARD

DIAGNOSTIC

MONITOR ID

01

02

21

39

STANDARDIZED /

MANUFACTURER

DEFIND TEST ID

81

08

82

05

88

83

85

MONITORING ITEM

Oxygen Sensor Monitor

Bank 1

− Sensor 1

Rich/Lean Switching frequency


Bank 1

− Sensor 2

Maximum Sensor Voltage for Test Cycle


Bank 1 − Sensor 2

Output Voltage change


Bank 1

− Sensor 2

Rich To Lean Sensor Switch

Time


Bank 1 − Sensor 2

Output Voltage drop slope

Catalyst Monitor Bank 1

Frequency ratio between

Front- and Rear-Oxygen

Sensors

EVAP Monitor (Cap off)

Pressure drop during de-pressurizing

SIMPLE TECHNICAL DESCRIPTION

ECM monitors the deteriorated condition of the heated oxygen sensor (front) by checking the rich/lean switching frequency of the heated oxygen sensor (front).

ECM checks the output voltage of the heated oxygen sensor (rear) in order to monitor whether the heated oxygen sensor (rear) outputs the rich signal.

ECM checks the output voltage of the heated oxygen sensor (rear) in order to monitor whether the heated oxygen sensor (rear) output is stuck.

ECM checks the rich to lean switching time of the heated oxygen sensor (rear) in order to monitor the response of the heated oxygen sensor (rear).

ECM checks the output voltage drop slope of the heated oxygen sensor (rear) in order to monitor the response of the heated oxygen sensor (rear).

ECM monitors the deterioration of catalyst by the output frequency ratio between heated oxygen sensor (front) and heated oxygen sensor (rear).

ECM monitors the leak of fuel evaporation gas by checking whether the pressure can be reduced (the amount of pressure reduction) using the fuel tank differential pressure sensor after sealing the fuel tank and the fuel line.

CONVERSION

COEFFICIENT IN USING

GENERAL SCAN TOOL

× 1 count

× 0.122 mV

× 0.122 mV

× 1 msec

× 1 msec

× 0.0039

× 0.0117 kPa

TSB Revision



ON-BOARD

DIAGNOSTIC

MONITOR ID

3B

3C

A1

A2

STANDARDIZED /

MANUFACTURER

DEFIND TEST ID

85

85

0B

0C

0B

0C

MONITORING ITEM

EVAP Monitor (0.040")

Pressure rise during airtight condition

EVAP Monitor (0.020")

Pressure rise during airtight condition

Mis-Fire General Data

EWMA Misfire Counts For

Last 10 Driving Cycles

Mis-Fire General Data

Misfire Counts For

Last/Current Driving Cycle

Mis-Fire Cylinder 1 Data




Misfire Counts For



After ECM vacuumizes the fuel tank and the fuel line and then the specified time is passed, ECM monitors the leak of fuel evaporation gas through the fuel tank differential pressure sensor to check the reduction of vacuum in the fuel tank.

After ECM vacuumizes the fuel tank and the fuel line and then the specified time is passed, ECM monitors the leak of fuel evaporation gas through the fuel tank differential pressure sensor to check the reduction of vacuum in the fuel tank.

ECM monitors angular acceleration of crankshaft and detect misfire. EWMA

(Exponential Weighted

Moving Average) misfire counts for last 10 driving cycles.

ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycle.





CONVERSION



× 0.0117 kPa

× 0.0117 kPa

× 1 count

× 1 count

× 1 count

× 1 count

TSB Revision



13A-21

ON-BOARD

DIAGNOSTIC

MONITOR ID

A3

A4

A5

STANDARDIZED /

MANUFACTURER

DEFIND TEST ID

0B

0C

0B

0C

0B

0C

MONITORING ITEM





Misfire Counts For




Last 10 Driving Cycles.


Misfire Counts For






Misfire Counts For















CONVERSION



× 1 count

× 1 count

× 1 count

× 1 count

× 1 count

× 1 count

NOTE: *1: Minimum value: The test fails if test value is less than this value.

NOTE: *2: Maximum value: The test fails if test value is greater than this value.

NOTE: When not finishing the monitor of the driving cycle for the request of On-Board Monitoring Test

Request, the ECM outputs the stored latest monitor test result.

NOTE: When the monitored test results are erased by the battery disconnection and so on, the ECM outputs the values in hexadecimal of "0000" or "FFFF", otherwise it outputs abnormal values and so on. In case of this, the ECU outputs are handled as invalid-values. When the first monitor (Readiness Status) is completed after this, the ECM outputs the valid-values.

NOTE: "Test Limit Type & Component ID byte" output from the ECM is given in hexadecimal of "00" or "80".

"00" means the maximum value and "80" means the minimum value.

TSB Revision

13A-22

Data link connector

MB991910

MB991824

MB991827



AC608435 AB

DIAGNOSTIC BY DIAGNOSTIC TEST MODE II

(INCREASED SENSITIVITY)


• MB991958: Scan tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.



CAUTION


NOTE: When mode II is selected with MB991958, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check

Engine Lamp) will light when the engine control module (ECM) first detects the trouble (Note that this is only for emission-related trouble). At the same time, the relevant diagnostic trouble codes will be registered. In respect to the comprehensive component electrical faults (opens/shorts), the time for the diagnostic trouble code to be registered after the fault occurrence is four seconds

→

one second. Therefore, the confirmation of the trouble symptom and the confirmation after completing repairs can be reduced. To return to the normal mode I after mode II has been selected once, the ignition switch must be turned "OFF" once or mode I must be reselected with the scan tool MB991958. The diagnostic trouble code, system readiness test status and freeze frame data, etc., will be erased when mode I is returned to, so record these before returning to mode I.



3. Change the diagnostic test mode of the engine control module to DIAGNOSTIC TEST MODE II (INCREASED

SENSITIVITY).

4. Road test the vehicle.

5. Read the diagnostic trouble code and repair the malfunctioning part.

6. Turn the ignition switch to the "LOCK" (OFF) position.

7. Disconnect scan tool MB991958 from the data link connector.

TSB Revision



ON-BOARD DIAGNOSTICS

The engine control module (ECM) monitors the input/output signals (some signals all the time and others under specified conditions) of the ECM. When a malfunction continues for a specified time or longer after the irregular signal is initially monitored, the

ECM judges that a malfunction has occurred. After the ECM first detects a malfunction, a diagnostic trouble code is recorded when the engine is restarted and the same malfunction is re-detected. However, for items marked with a "*", a diagnostic trouble code is recorded on the first detection of the malfunction.

There are 134 diagnostic items. The diagnostic results can be read out with a scan tool. Since memorization of the diagnostic trouble codes is backed up directly by the battery, the diagnostic results are memorized even if the ignition key is turned off. The diagnostic trouble codes will, however, be erased when the battery terminal or the ECM connector is disconnected. In addition, the diagnostic trouble code can also be erased by turning the ignition switch to ON and sending the diagnostic trouble code erase signal from scan tool MB991958 to the

ECM.

13A-23

NOTE: If the sensor connector is disconnected with the ignition switch turned on, the diagnostic trouble code is memorized. In this case, send the diagnostic trouble code erase signal to the ECM in order to erase the diagnostic memory. The 134 diagnostic items are all indicated sequentially from the smallest code number. The ECM records the engine operating condition when the diagnostic trouble code is set.

This data is called "Freeze-frame" data. This data can be read by using the scan tool, and can then be used in simulation tests for troubleshooting. Data items are as follows:

NOTE: If the ECM detects multiple malfunctions, the

ECM stores the "Freeze-frame" data for only the first item that was detected. However, if the ECM detects a misfire or a fuel system malfunction, the ECM stores the data by giving priority to the misfire or fuel system malfunction, regardless of the order in which the malfunction was detected.

NOTE: As for Diagnostic trouble code P1603,

"Freeze-frame" data is not memorized.

Freeze Frame Data for M.U.T.-III

ITEM NO. M.U.T.-III SCAN TOOL

DISPLAY

1

2

4

Odometer

Ignition cycle (Warm up cycle)

DATA ITEM

Odometer

Ignition cycle (Warm up cycle)

Accumulated minute Accumulated minute*

UNIT or STATE

km

− min

NOTE: *: The total time, in which the failure determination is carried out while the ignition switch is in the ON position.

Freeze Frame Data for M.U.T.-III


DISPLAY

AA Airflow sensor

AB

BB

TP sensor (main)


BC

BD

BE

BF

Relative TP sensor

TP sensor (sub)

APP sensor (main)

APP sensor (sub)

DATA ITEM

Mass airflow sensor

Throttle position sensor (main)


UNIT or STATE

g/s

% kPa or in.Hg

Relative throttle position sensor

Throttle position sensor (sub)

%

%

Accelerator pedal position sensor (main) %

Accelerator pedal position sensor (sub) %

TSB Revision




DISPLAY

C0 Fuel system status

(bank 1)

DATA ITEM

Fuel system status

UNIT or STATE

• Open loop

• Closed loop

• Open loop-drive condition

• Open loop-DTC set

• Closed loop-O2 (rear) failed

N/A C1*

C2

C3

C4

C5*

C6

C7*

CC

CD

Fuel system status

(bank 2)

Calculated load value

ECT sensor

Short term fuel trim

(bank 1)


(bank 3)

Long term fuel trim

(bank 1)

Long term fuel trim

(bank 3)

MAP sensor


Fuel system status (bank 2)

Calculated load value



Short term fuel trim (bank 3)

Long term fuel trim

Long term fuel trim (bank 3)



%

° C or ° F

%

****

%

**** kPa or in.Hg

r/min

CE

CF

D0

D1

D6

D7

D8

D9

DA

DB

Vehicle speed

Spark advance

Intake air temperature sensor

Time since engine running

Vehicle speed

Spark advance


Time since engine running

EVAP. emission purge

SOL. duty

Fuel level gauge

Evaporative emission purge solenoid duty

Fuel level gauge

Power supply voltage Power supply voltage

Absolute load value Absolute load value

Target equivalence ratio Target equivalence ratio


Intake air temperature sensor km/h or mph deg

° C or ° F sec

%

%

V

%

° F

DC Throttle actuator Throttle actuator control motor %

NOTE: *Data items are displayed on M.U.T.-III display, but the in-line 4 engine is not applicable and its data is displayed as "N/A" or "****".

TSB Revision



13A-25

Freeze Frame Data for General Scan Tool

COMMON EXAMPLE of

GENERAL SCAN

TOOL DISPLAY

PRAMETER

IDENTIFICATION

(PID)

DESCRIPTION

DTCFRZF

FUELSYS 1

LOAD_PCT

02

03

04

UNIT or STATE

DTC that caused required freeze frame data storage Pxxxx, Uxxxx

See M.U.T.-III Item No. C0


ECT

SHRTFT 1

LONGFT 1

MAP

05

06

07

0B




See M.U.T.-III Item No. CC

RPM

VSS

SPARKADV

IAT

MAF

TP

RUNTM

EVAP_PCT

0C

0D

0E

0F

10

11

1F

2E

See M.U.T.-III Item No. CD

See M.U.T.-III Item No. CE

See M.U.T.-III Item No. CF

See M.U.T.-III Item No. D0

See M.U.T.-III Item No. AA

See M.U.T.-III Item No. AB



FLI

BARO

VPWR

LOAD_ABS

EQ_RAT

TP_R

AAT

44

45

46

2F

33

42

43


See M.U.T.-III Item No. BB



See M.U.T.-III Item No. DA

See M.U.T.-III Item No. BC

Ambient air temperature

° C (° F)

TP_B

APP_D

APP_E

TAC_PCT

47

49

4A

4C

See M.U.T.-III Item No. BD

See M.U.T.-III Item No. BE

See M.U.T.-III Item No. BF

Command Throttle Actuator Control %

OBD- II DRIVE CYCLE

All kinds of diagnostic trouble codes (DTCs) can be monitored by carrying out a short drive according to the following 23 drive cycle patterns. In other words, doing such a drive regenerates any kind of trouble which involves illuminating the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) and verifies the repair procedure has been eliminated [the trouble the Malfunction Indicator Lamp (SERVICE

ENGINE SOON or Check Engine Lamp) is no longer illuminated].

CAUTION

Two technicians should always be in the vehicle when carrying out a test.

NOTE: Check that the diagnosis trouble code (DTC) is not output before driving the OBD-II drive cycle. Erase the DTC if it has been output.

NOTE: Drive cycle patterns are not established for Vehicle speed signal monitor (DTC P0500), Power steering pressure switch monitor (P0551), and Fuel level sensor monitor (DTC P0461, P2066). Please reference the M.U.T. data list to judge whether these monitor items are normal.

TSB Revision



DRIVE CYCLE PATTERN LIST

MONITOR ITEM

Heated oxygen sensor (front) monitor <Readiness test item>

Heated oxygen sensor heater monitor <Readiness test item>

Catalytic converter monitor <Readiness test item>

Evaporative emission system leak monitor (small leak and gross leak) <Readiness test item>

Evaporative purge system monitor

Fuel tank pressure sensor monitor

Evaporative emission system leak monitor (very small leak)

<Readiness test item>

Airflow sensor monitor

Manifold absolute pressure (MAP) sensor monitor

Intake air temperature sensor monitor

Engine coolant temperature sensor monitor

Thermostat monitor

Heated oxygen sensor (rear) monitor <Readiness test item>

Air fuel ratio feedback monitor

Heated oxygen sensor (rear) monitor

Fuel tank temperature sensor monitor

Misfire monitor


Power steering pressure switch monitor

Throttle position sensor plausibility monitor

Mass airflow sensor plausibility monitor

Torque monitor

Wastegate system monitor

Idle speed control system monitor

Idle speed control system monitor

Ignition timing retard control (cold start strategy) monitor

Variable valve timing system (MIVEC) monitor

Fuel trim monitor

Heated oxygen sensor monitor

DIAGNOSTIC TROUBLE

CODE (DTC)

P0133

P0031, P0032, P0037,

P0038

P0420

P0442, P0455

P0441

P0450

P0456

P0101

P0106, P0107

P0096, P0111

P0116, P0125

P0128

P0139

PATTERN

1

2

3

4

5

6

7

8

9

10

P0134

P0140

P0181

P0300, P0301, P0302,

P0303, P0304

P0451

P0554

P1233, P1234

P1235, P1238

P1241

P0234

P0506, P0507

P1506, P1507

15

16

P1320

P0011, P0014, P0016, P0017 20

P0171, P0172

P0131, P0137, P2195

21

22

17

18

19

11

12

13

14

TSB Revision

.

MONITOR ITEM

Airflow sensor monitor

Heated oxygen sensor monitor

Injector monitor

Knock sensor monitor

Fuel level sensor monitor



Intake air temperature sensor monitor

Manifold absolute pressure (MAP) sensor monitor

Engine coolant temperature sensor monitor

Fuel tank temperature sensor monitor

Turbocharger wastgate solenoid monitor

Crankshaft position sensor monitor

Evaporative emission purge solenoid monitor

Evaporative emission ventilation solenoid monitor


Engine oil control valve monitor

Engine RPM plausibility monitor

Barometric pressure sensor monitor

13A-27

DIAGNOSTIC TROUBLE

CODE (DTC)

PATTERN

P0097, P0098, P0112, P0113 23

P0102, P0103

P0108

P0117, P0118

P0132, P0138, P2252,

P2253

P0182, P0183

P0201, P0202, P0203,

P0204

P0243, P0247

P0327, P0328

P0335

P0443

P0446

P0452, P0453

P0462, P0463

P1021, P1025

P1239

P2228, P2229

TSB Revision

13A-28

PATTERN 1

Drive cycle pattern

ENGINE SPEED

1,500 - 3,500 r/min



(2)

DURING THE MONITOR

(3)

.

Inspection conditions

Test procedure

IGNITION

SWITCH:

"LOCK" (OFF)

(1)

2 MINUTES

TIME

AK402430 AJ

• Engine coolant temperature: More than 82° C (180° F)

• Barometric pressure: More than 76 kPa (22.5 inHg)

• Condition of TC-SST: Shift lever "D" range

1. Start the engine with all the accessories switched OFF.

2. Drive the vehicle for 4 minutes at the following conditions. (During the monitor)

NOTE: When the system is normal, the monitor is completed earlier.

• Vehicle speed: More than 30 km/h (19 mph)

• Engine speed: More than 1,500 r/min, less than 3,500 r/min

• Engine load: More than 20 %, less than 60 %

• Without rapid accelerator pedal movement

3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.

4. Start the engine and do Steps 1 to 3 again.

NOTE: When the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.

5. Confirm that the diagnostic trouble code (DTC) is not output.

.

PATTERN 2

Test procedure


2. Let the engine idle for 10 seconds. (During the monitor)

3. Turn the ignition switch to the "LOCK" (OFF) position.




TSB Revision

PATTERN 3

Drive cycle pattern

Engine speed

3,500 r/min



During the monitor

(2)

(3)

During the monitor

(4)

(5)

13A-29

.


Test procedure

(1)

Ignition switch:

"LOCK" (OFF)

5 Minutes

Time

5 Seconds 3 Minutes

AK402432 AD


• Intake air temperature: More than −10° C (14° F)



1. Start the engine with all accessories switched OFF.


• Engine speed: Less than 3,500 r/min

• Airflow rate: More than 13 g/sec, less than 45 g/sec

• Accelerator pedal: Except full close


3. Release the accelerator pedal for 5 seconds.


• Engine speed: Less than 3,500 r/min

• Airflow rate: More than 13 g/sec, less than 45 g/sec

• Accelerator pedal: Except full close







TSB Revision

13A-30

PATTERN 4

Drive cycle pattern

Engine speed

1,600 - 4,000 r/min



(2)

During the monitor

(3)

.


Test procedure

Ignition switch:

"LOCK" (OFF)

(1)

16 Minutes

Time

AK402430 AI

• Engine coolant temperature at engine start: Less than 36° C (96° F)

• Intake air temperature at engine start: Less than 36° C (96° F)

• Fuel amount at engine start: More than 15 %, less than 40 %


• Intake air temperature: More than 5° C (41° F)


• Fuel temperature: Less than 36° C (96° F)




• Engine speed: More than 1,600 r/min, less than 4,000 r/min

• Vehicle speed: More than 30 km/h (18.7 mph)



NOTE: Keep running as long as possible with the power steering pressure switch in the OFF position.






TSB Revision

.



13A-31

PATTERN 5


Test procedure

• Engine coolant temperature at engine start: Less than 36° C (96° F)

• Intake air temperature at engine start: Less than 36° C (96° F)

• Fuel amount at engine start: More than 40 %, less than 85 %


• Intake air temperature: More than 5° C (41° F)


• Fuel temperature: Less than 32° C (90° F)


2. Let the engine idle for 16 minutes. (During the monitor)


3. Turn the ignition switch to "LOCK" (OFF) position.




.

PATTERN 6

Drive cycle pattern


Test procedure

Engine speed

During the monitor

(3)

During the monitor

(4)

2,000 r/min

(2)

Idling

(1)

Ignition switch:

"LOCK" (OFF)

30 Seconds

2 Seconds

Time

AK402442 AC

• Engine coolant temperature at engine start: More than 0° C (32° F)



2. Let the engine idle for 30 seconds. (During the monitor)

3. Accelerate the vehicle for 2 seconds at the following conditions. (During the monitor)

• Engine speed: More than 2,000 r/min

• Engine load: More than 20 %

• Throttle position sensor output voltage: More than 3.5 volts




TSB Revision

13A-32

PATTERN 7

Drive cycle pattern

Vehicle speed

50 km/h

(31 mph)



(2) (2)


Test procedure

Idling

Ignition switch:

"LOCK" (OFF)

(1)

1 Minute

(3)

30 Seconds

1 Minute

(3)

(5)

Time

30 Seconds

AK402435 AC




2. Drive the vehicle at more than 50 km/h (31 mph) for 1 minute.

3. Stop the vehicle in a safe place and let the engine idle for 30 seconds.

4. Repeat Steps 2 and 3 again.



.

PATTERN 8

Drive cycle pattern

Vehicle speed

50 km/h

(32 mph)

(2)

During the monitor

(3)

.


Test procedure

Ignition switch:

"LOCK" (OFF)

(1)

6 Minutes

Time

AK402441 AM

• Engine coolant temperature at engine start: More than 7° C (47° F)

• Intake air temperature: Less than 60° C (140° F)




2. Drive the vehicle for 6 minutes at the following condition. (During the monitor)


• Except fuel cut



TSB Revision

PATTERN 9

Drive cycle pattern

Vehicle speed



50 km/h

(31 mph)

(2)

During the monitor

(3)

13A-33

.


Test procedure

Ignition switch:

"LOCK" (OFF)

(1)

44 minutes

Time

AK402441 AN

• Engine coolant temperature at engine start: More than 10° C (50° F), less than 60° C

(168

° F)

• Intake air temperature at engine start: More than 10° C (14° F)

• Dropping of intake air temperature since engine start: Less than 5° C (9° F)





• Except fuel cut

NOTE: The system is normal if engine coolant temperature will rise more than 82

°

C

(180

°

F) within 44 minutes.




TSB Revision

13A-34

PATTERN 10

Drive cycle pattern

Vehicle speed

50 km/h

(32 mph)



(2)

During the monitor

(3)


Test procedure

Ignition switch:

"LOCK" (OFF)

(1)

6 Minutes

(4)

Time

AK604701 AB




2. Drive the vehicle at 50 km/h (31 mph) for 6 minutes.

3. Release the accelerator pedal for 10 seconds then stop the vehicle in a safe place.

(During the monitor)




.

PATTERN 11

Drive cycle pattern


Test procedure

Engine speed

During the monitor

(3)

1,800 r/min

(4)

(2)

Idling

Ignition switch:

"LOCK" (OFF)

(1)

3 Minutes

30 Seconds

Time

AK402436 AC




2. Let the engine idle for 3 minutes.

3. Drive the vehicle for 30 seconds at the following conditions. (During the monitor)



• Throttle position sensor output: Less than 3.0 volts

• Except fuel cut



TSB Revision

.

Drive cycle pattern

Vehicle speed

50 km/h

(31 mph)



PATTERN 12

(2)

(3)

(4)

(5)

(4)

(5)

(4)

(5)

13A-35

.


Test procedure

Idling

Ignition switch:

"LOCK" (OFF)

(1)

(7)

Time

5 Minutes

5 Seconds

5 Seconds

AK402437 AC




2. Drive the vehicle at 50 km/h (31 mph) for 5 minutes.

3. Release the accelerator pedal for 5 seconds then stop the safe place.

4. Increase the speed of the vehicle to 50 km/h (31 mph) under the following conditions, and then drive the vehicle for 30 seconds.



5. Release the accelerator pedal for 5 seconds then stop the safe place.

6. Repeat Steps 4 and 5 for 2 times.




.

PATTERN 13


Test procedure

• Engine coolant temperature at engine start: More than −10° C (14° F), less than 33° C

(91

° F)

• Difference between engine coolant temperature and intake air temperature at engine start: Less than 5

° C (9° F)



2. Drive the vehicle at more than 30 km/h (19 mph) until engine coolant temperature rises more than 60

° C (140° F). (During the monitor)




TSB Revision

13A-36

PATTERN 14

Drive cycle pattern

Engine speed

500 - 3,000 r/min



(2)

During the monitor

(3)


Test procedure

Ignition switch:

"LOCK" (OFF)

(1)

3 Minutes

Time

AK402440 AE

• Engine coolant temperature: More than −10° C (14° F)






• Engine speed: More than 500 r/min, less than 3,000 r/min


• Without rapid accelerator pedal change

• Except fuel cut




.

TSB Revision

PATTERN 15

Drive cycle pattern

Vehicle speed

50 km/h

(31 mph)

Idling

Ignition switch:

"LOCK" (OFF)



(1)

(2)

(3)

1st monitor

(2)

(3)

2nd monitor

(2)

(2)

(3)

9th monitor

(2)

(3)

10th monitor

(5)

20 seconds 20 seconds

13A-37

Time

AK402438 AC

Inspection condition

Test procedure

Condition of TC-SST: Shift lever "D" range


2. Accelerate until the vehicle speed is more than 50 km/h (31 mph).



3. Stop the vehicle in a safe place and let the engine idle for 20 seconds. (During the monitor)

4. Repeat Steps 2 and 3 for 10 times.




.

PATTERN 16

Drive cycle pattern

Vehicle speed

50 km/h

(31 mph)

(2)

During the monitor

(3)


Test procedure

Ignition switch:

"LOCK" (OFF)

(1)

30 seconds

Time

AK402441 AP




2. Drive the vehicle at more than 50 km/h (31 mph) for 30 seconds. (During the monitor)




TSB Revision



.

.

PATTERN 17


Test procedure

Condition of TC-SST: Shift lever "D" range


2. Drive the vehicle with the accelerator pedal fully depressed for 5 seconds. (During the monitor)

3. Stop at safe place and turn the ignition switch to "LOCK" (OFF) position.



.

PATTERN 18


Test procedure





2. Accelerate until the vehicle speed is more than 1.5 km/h (1 mph).

3. Stop the vehicle in a safe place and let the engine idle for 1 minute. (During the monitor)




.

PATTERN 19


Test procedure

• Engine coolant temperature: More than 7° C (45° F), less than 36° C (97° F)




2. Let the engine idle for 1 minute. (During the monitor)




.

PATTERN 20


Test procedure

• Engine coolant temperature: More than 77° C (171° F), less than 87° C (189° F)



2. Drive the engine at 1,200

− 1,500 r/min for 30 seconds. (During the monitor)




TSB Revision



PATTERN 21

Inspection condition

Test procedure

Engine coolant temperature: More than 82

° C (180° F)






.

PATTERN 22


Test procedure


• Engine coolant temperature sensor: More than 7° C (45° F)






.

PATTERN 23


Test procedure

13A-39

• Fuel temperature sensor: Less than 36° C (96° F) <Fuel tank pressure sensor monitor>

• Fuel amount at engine start: Less than 85 % <Fuel tank pressure sensor monitor>


2. Let the engine idle at the engine speed less than 1,000 r/min for 15 seconds. (During the monitor)



SYSTEM READINESS TEST STATUS

.

PURPOSE

The Readiness function (also referred to as I/M

Readiness or I/M Flags) indicates if a full diagnostic check has been "Completed" (is "Ready") for each non-continuous monitor. Enhanced I/M State Emission Programs will use the Readiness status (Codes) to see if the vehicle is ready for OBD-II testing.

"Incomplete" (Not Ready) codes will be one of the triggers for I/M failure.

.

OVERVIEW

The ECM monitors the following main diagnosis items and records whether the evaluation was completed or is incomplete. The Readiness Codes are established for the I/M programs, thereby confirming that the vehicles have not been tampered with by erasing the diagnostic trouble code(s) (DTCs) before

I/M testing. The Readiness Codes and DTCs can be reset by disconnecting the battery or by erasing the codes with a scan tool MB991958 (M.U.T.-III sub assembly). For this reason, all the Readiness Codes must be displayed "Complete" before I/M testing.

When the monitors run and complete, the scan tool

MB991958 (M.U.T.-III sub assembly) will display the

Readiness Codes as "Complete" (General Scan

Tools display as "Ready"). When the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. For DTCs requiring two drive cycles to detect a fault, the second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle. If the fault is still there after the second drive cycle, a DTC will be set.

• Catalyst: P0420

• Evaporative system: P0442, P0455, P0456

• Heated oxygen sensor: P0133, P0139

• Heated oxygen sensor heater: P0031, P0032,

P0037, P0038

TSB Revision

13A-40

After all the Readiness Codes are displayed as

"Complete", the technician is assured that any DTCs related to the monitor will be displayed if the system has a problem. That is why some State's I/M probefore they check for DTCs.



NOTE: After a repair is made for a DTC, the technician should drive the OBD-II Drive Cycle checking that the scan tool MB991958 (M.U.T.-III Sub Assembly) displays all the Readiness Codes as "Complete".

grams require the Readiness Code as "Complete"

FAIL-SAFE FUNCTION REFERENCE TABLE

M1131153000857

The control is carried out, which keeps the safety driving by the preset controllogic when the diagnosis code is output. The diagnosis code having the fail-safe function is as follows.

DTC

P0096

P0097

P0098

P0111

P0112

P0113

P0116

P0117

P0118

P0122

P0123

P0125

P0222

P0223

P0234

DIAGNOSTIC ITEM FAIL-SAFE AND BACKUP FUNCTION


Intake air temperature circuit low input

(sensor 2)

Intake air temperature circuit high input

(sensor 2)


Control as if the intake air temperature in the intake manifold is 25 ° C.

Control as if the intake air temperature in the intake manifold is 25

° C.

Control as if the intake air temperature in the intake manifold is 25

° C.

Control as if the intake air temperature is

25

° C.

Intake air temperature circuit low input

(sensor 1)

Intake air temperature circuit high input

(sensor 1)


25 ° C.


25

° C.

Engine coolant temperature circuit range/performance problem

Control as if the engine coolant temperature is 80

° C.

Engine coolant temperature circuit low input Control as if the engine coolant temperature is 80

° C.

Engine coolant temperature circuit high input Control as if the engine coolant temperature is 80 ° C.

Throttle position sensor (main) circuit low input

• Throttle opening degree is restricted.

• Throttle opening degree position is in default position if throttle position sensor

(sub) fails.

Throttle position sensor (main) circuit high input



(sub) fails.

Insufficient coolant temperature for closed loop fuel control

Control as if the engine coolant temperature is 80

° C.

Throttle position sensor (sub) circuit low input



(main) fails.

Throttle position sensor (sub) circuit high input



(main) fails.

Turbocharger wastegate system malfunction Fuel is cut in abnormal engine overboost condition.

TSB Revision

P0365

P0513

P0606

P0622

P0638

P0642

P0657

P1021

P1025

P1231

P1232

P1233

DTC

P0300

P0301

P0302

P0303

P0304

P0327

P0328

P0340

P1234 malfunction



DIAGNOSTIC ITEM

Random/multiple cylinder misfire detected





Knock sensor circuit low

Knock sensor circuit high

Intake camshaft position sensor circuit

Exhaust camshaft position sensor circuit

Immobilizer malfunction

Engine control module main processor malfunction

Generator FR terminal circuit malfunction

Throttle actuator control motor circuit range/performance

Throttle position sensor power supply

Throttle actuator control motor relay circuit

Intake engine oil control valve circuit

Exhaust engine oil control valve circuit

Active stability control plausibility

Fail safe system

Throttle position sensor (main) plausibility

Throttle position sensor (sub) plausibility

13A-41

FAIL-SAFE AND BACKUP FUNCTION

The supply of fuel to the misfiring cylinder can possibly be cut.





Fix the ignition timing with an allowance against knock.

Fix the ignition timing with an allowance against knock.

• Engine runs in learned pattern until engine stops.

• Does not control variable valve timing

(V.V.T.).

Does not control variable valve timing

(V.V.T.).

Engine start is prohibited.

Throttle opening degree position is in default position.

Prohibits generator output suppression control against current consumers.

(Operates as a normal generator.)




V.V.T.phase angle (intake) becomes most retarded angle.

V.V.T.phase angle (exhaust) becomes most advanced angle.

Torque requested by active stability control

(ASC) is ignored.

Microcomputer is reset.



(sub) fails.



(main) fails.

TSB Revision

P1236

P1237

P1238

P1239

P1240

P1241

P1242

P1243

P1244

P1245

P1247

P1590

P1603

P2100

P2101

P2122

13A-42

DTC

P1235

P2123

P2127

P2128

P2135



DIAGNOSTIC ITEM

Mass airflow sensor plausibility

Fail safe control monitor


Fuel control is carried out using throttle opening degree and engine speed in accordance with preset map.

A/D converter Throttle opening degree position is in default position.

Accelerator pedal position sensor plausibility Throttle opening degree position is in default position.

Mass airflow sensor plausibility (torque monitor)

Engine RPM plausibility



Ignition angle

Torque monitor

Ignition retard is not carried out.




Inquiry/response error

RAM test for all area

Cycle RAM test (engine)

TC-SST plausibility <TC-SST>

TCM to ECM communication error in torque reduction request <TC-SST>



Torque requested by TC-SST-ECU is ignored.

Engine output is restricted.

Battery backup circuit malfunction All diagnosis codes are stored once failure judgment is completed.

Throttle actuator control motor circuit (open) Throttle opening degree position is in default position.

Throttle actuator control motor magneto malfunction

Accelerator pedal position sensor (main) circuit low input




• Throttle opening degree position is in default position if accelerator pedal position sensor (sub) fails.



Accelerator pedal position sensor (sub) circuit low input




• Throttle opening degree position is in default position if accelerator pedal position sensor (main) fails.


• Throttle opening degree position is in default position if accelerator pedal position sensor (main) fails.


TSB Revision

DTC

P2138

P2228

P2229

P2253

P2263

U0167



13A-43

DIAGNOSTIC ITEM

Accelerator pedal position sensor (main and sub) range/performance problem


Barometric pressure circuit high input




Control as if the barometric pressure is 101 kPa.

Control as if the barometric pressure is 101 kPa.

Does not control air-fuel ratio closed loop.


Intake charge system malfunction

Immobilizer communication error

Fuel is cut in engine overboost condition.

Engine start is prohibited.

TSB Revision



DIAGNOSTIC TROUBLE CODE CHART

M1131151003399

CAUTION

During diagnosis, a DTC code associated with other system may be set when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for DTC(s). If DTC(s) are set, erase them all.

DTC DIAGNOSTIC ITEM REFERENCE

PAGE

P0011 Intake variable valve timing system target error

P.13A-51

P0012 Camshaft position - timing over-retarded

P.13A-54

P0014 Exhaust variable valve timing system target error

P.13A-55

P0016 Crankshaft/camshaft (intake) position sensor phase problem

P.13A-58

P0017 Crankshaft/camshaft (exhaust) position sensor phase problem

P.13A-62

P0031 Heated oxygen sensor (front) heater circuit low

P.13A-66

P0032 Heated oxygen sensor (front) heater circuit high

P.13A-73

P0037 Heated oxygen sensor (rear) heater circuit low

P.13A-77

P0038 Heated oxygen sensor (rear) heater circuit high

P.13A-84

P0069 Abnormal correlation between manifold absolute pressure sensor and barometric pressure sensor

P0096

*


P0097

*


P0098

*


P0101* Mass airflow circuit range/performance problem

P.13A-88

P.13A-92

P.13A-98

P.13A-101

P.13A-107

P0102* Mass airflow circuit low input

P.13A-113

P0103* Mass airflow circuit high input

P.13A-120

P0106 Manifold absolute pressure circuit range/performance problem

P.13A-125

P0107 Manifold absolute pressure circuit low input

P.13A-134

P0108 Manifold absolute pressure circuit high input

P.13A-142

P0111* Intake air temperature circuit range/performance problem (sensor 1)

P.13A-147

P0112* Intake air temperature circuit low input (sensor 1)

P.13A-153

P0113* Intake air temperature circuit high input (sensor 1)

P.13A-157

P0116* Engine coolant temperature circuit range/performance problem

P0137 Heated oxygen sensor (rear) circuit low voltage

P.13A-163

P0117* Engine coolant temperature circuit low input

P.13A-169

P0118* Engine coolant temperature circuit high input

P0134* Heated oxygen sensor (front) circuit no activity detected

P.13A-174

P0122* Throttle position sensor (main) circuit low input

P0131 Heated oxygen sensor (front) circuit low voltage

P.13A-181

P0123* Throttle position sensor (main) circuit high input

P.13A-185

P0125* Insufficient coolant temperature for closed loop fuel control

P.13A-192

P0128 Coolant thermostat (coolant temperature below thermostat regulating temperature)

P.13A-200

P.13A-203

P0132 Heated oxygen sensor (front) circuit high voltage

P.13A-211

P0133 Heated oxygen sensor (front) circuit slow response

P.13A-215

P.13A-220

P.13A-226

P0138 Heated oxygen sensor (rear) circuit high voltage

P.13A-234

TSB Revision



DTC DIAGNOSTIC ITEM

P0139 Heated oxygen sensor (rear) circuit slow response

P0140 Heated oxygen sensor (rear) circuit no activity detected

P0171 System too lean

P0172 System too rich

P0181 Fuel tank temperature sensor circuit range/performance

P0182 Fuel tank temperature sensor circuit low input

P0183 Fuel tank temperature sensor circuit high input

P0201 Injector circuit-cylinder 1




P0222* Throttle position sensor (sub) circuit low input

P0223* Throttle position sensor (sub) circuit high input

P0234 Turbocharger wastegate system malfunction

P0243 Turbocharger wastegate solenoid 1 circuit

P0247 Turbocharger wastegate solenoid 2 circuit

P0300 Random/multiple cylinder misfire detected

P0301 Cylinder 1 misfire detected




P0327 Knock sensor circuit low

P0328 Knock sensor circuit high

P0335* Crankshaft position sensor circuit

P0340* Intake camshaft position sensor circuit

P0365* Exhaust camshaft position sensor circuit

P0420 Warm up catalyst efficiency below threshold

P0441 Evaporative emission control system incorrect purge flow

P0442 Evaporative emission control system leak detected (small leak)

P0443 Evaporative emission purge solenoid circuit

P0446 Evaporative emission ventilation solenoid circuit

P0450 Fuel tank differential pressure sensor malfunction

P0451 Fuel tank differential pressure circuit range/performance problem

P0452 Fuel tank differential pressure circuit low input

P0453 Fuel tank differential pressure circuit high input

P0455 Evaporative emission control system leak detected (gross leak)

P0456 Evaporative emission control system leak detected (very small leak)

P0461 Fuel level sensor (main) circuit range/performance

P0462 Fuel level sensor circuit low input

P0463 Fuel level sensor circuit high input

P0500* Vehicle speed signal malfunction

TSB Revision

13A-45

REFERENCE

PAGE

P.13A-238

P.13A-242

P.13A-246

P.13A-252

P.13A-258

P.13A-265

P.13A-270

P.13A-277

P.13A-287

P.13A-297

P.13A-307

P.13A-317

P.13A-323

P.13A-328

P.13A-330

P.13A-337

P.13A-343

P.13A-348

P.13A-351

P.13A-354

P.13A-357

P.13A-361

P.13A-364

P.13A-367

P.13A-377

P.13A-385

P.13A-394

P.13A-396

P.13A-400

P.13A-412

P.13A-419

P.13A-426

P.13A-435

P.13A-444

P.13A-455

P.13A-512

P.13A-523

P.13A-534

P.13A-537

P.13A-540

P.13A-542



DTC DIAGNOSTIC ITEM

P0506 Idle control system RPM lower than expected

P0507 Idle control system RPM higher than expected

P0513 Immobilizer malfunction

P0551 Power steering pressure switch circuit range/performance

P0554 Power steering pressure switch circuit intermittent

P0603* EEPROM malfunction

P0606* Engine control module main processor malfunction

P0622 Generator FR terminal circuit malfunction

P0630* Vehicle Identification Number (VIN) malfunction

P0638* Throttle actuator control motor circuit range/performance

P0642* Throttle position sensor power supply

P0657* Throttle actuator control motor relay circuit malfunction

P0830 Clutch pedal position switch circuit range/performance

P1021 Intake engine oil control valve circuit

P1025 Exhaust engine oil control valve circuit

P1231 Active stability control plausibility

P1232 Fail safe system

P1233* Throttle position sensor (main) plausibility

P1234* Throttle position sensor (sub) plausibility

P1235* Mass airflow sensor plausibility

P1236* A/D converter

P1237* Accelerator pedal position sensor plausibility

P1238* Mass airflow sensor plausibility (torque monitor)

P1239* Engine RPM plausibility

P1240 Ignition angle

P1241* Torque monitor

P1242 Fail safe control monitor

P1243 Inquiry/response error

P1244 RAM test for all area

P1245 Cycle RAM test (engine)

P1247 TC-SST plausibility <TC-SST>

P1320 Ignition timing retard insufficient

P1506 Idle control system RPM lower than expected at low temperature

P1507 Idle control system RPM higher than expected at low temperature

P1590* TCM to ECM communication error in torque reduction request <TC-SST>

P1603* Battery backup circuit malfunction

P1676* Variant coding

P2066 Fuel level sensor (sub) circuit range/performance

P2100* Throttle actuator control motor circuit (open)

P2101* Throttle actuator control motor magneto malfunction

P2122* Accelerator pedal position sensor (main) circuit low input

TSB Revision

REFERENCE

PAGE

P.13A-545

P.13A-548

P.13A-551

P.13A-553

P.13A-560

P.13A-564

P.13A-566

P.13A-568

P.13A-573

P.13A-575

P.13A-579

P.13A-581

P.13A-589

P.13A-594

P.13A-601

P.13A-607

P.13A-609

P.13A-610

P.13A-614

P.13A-617

P.13A-620

P.13A-621

P.13A-624

P.13A-628

P.13A-630

P.13A-631

P.13A-635

P.13A-637

P.13A-638

P.13A-639

P.13A-640

P.13A-641

P.13A-644

P.13A-647

P.13A-650

P.13A-653

P.13A-657

P.13A-659

P.13A-663

P.13A-668

P.13A-672



13A-47

DTC

P2123*

DIAGNOSTIC ITEM


REFERENCE

PAGE

P.13A-677

P2127* Accelerator pedal position sensor (sub) circuit low input

P2128*

P2135*



P.13A-682

P.13A-687

P.13A-691

P2138* Accelerator pedal position sensor (main and sub) range/performance problem

P.13A-697

P2195

P2228*

Heated Oxygen Sensor (front) Inactive


P.13A-704

P.13A-707

P2229* Barometric pressure circuit high input

P.13A-709

P2252 Heated oxygen sensor offset circuit low voltage

P2253

P2263


Intake charge system malfunction

P.13A-711

P.13A-713

P.13A-715

U0001 Bus off

U0101* TC-SST-ECU time-out <TC-SST>

U0121* ASC-ECU time-out

P.13A-718

P.13A-719

P.13A-723

U0141* ETACS-ECU time-out

P.13A-727

U0167

U1180*

Immobilizer communication error

Combination meter time-out

P.13A-731

P.13A-733

NOTE: Do not replace the engine control module (ECM) until a through terminal check reveals there are no short/open circuits.

NOTE: Check that the ECM ground circuit is normal before checking for the cause of the problem.

NOTE: After the ECM detects a malfunction, a diagnostic trouble code is recorded the next time the engine is started and the same malfunction is re-detected. However, for items marked with a "*", the diagnostic trouble code is recorded on the first detection of the malfunction.

NOTE: Sensor 1 of the heated oxygen sensor indicates the sensor mounted at a position closest to the engine, and sensor 2 of the heated oxygen sensor indicates the sensor mounted at the position second closest to the engine.

TSB Revision



SYMPTOM CHART

M1131151502711

CAUTION

During diagnosis, a DTC associated with other systems may be set when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for DTC(s). If DTC(s) are set, erase them all.

CAUTION

Disconnecting the battery cables or removing the combination meter will erase the learned value of the fuel gauge. To recover the learned value, input a vehicle speed (by actually driving the vehicle or inputting a simulated vehicle speed), and stop the vehicle. This will complete the learning process.

NOTE: Check that the ECM ground circuit is normal before checking for the cause of the problem.

NOTE: When the racing (3,000 to 5,000 r/min or more) continues on the vehicle stopped with no load during the specified time or more, the increase in the engine speed might be limited. This comes from the engine protection and control functions and is not a malfunction.

.

TROUBLE SYMPTOMS INSPECTION

PROCEDURE

REFERENCE PAGE

Communication with ECM only is not possible 1

P.13A-737

Communication with scan tool is impossible

Malfunction

Indicator Lamp

(SERVICE

ENGINE SOON or

Check Engine

Lamp) and related parts

The Malfunction Indicator Lamp (SERVICE

ENGINE SOON or Check Engine Lamp) does not illuminate right after the ignition switch is turned to the "ON" position

The Malfunction Indicator Lamp (SERVICE

ENGINE SOON or Check Engine Lamp) remains illuminated and never goes out

2

3

P.13A-741

P.13A-742

Starting Cranks, won't start 4

P.13A-744

Starts up and dies 5

P.13A-751

Hard starting 6

P.13A-755

Idling stability

(improper idling)

Unstable idle (rough idle, hunting)

Idle speed is high (improper idle speed)

7

8

P.13A-760

P.13A-764

Idle speed is low (improper idle speed) 9

P.13A-765

Idling stability

(engine stalls)

When the engine is cold, it stalls at idle (die out) 10

When the engine is hot, it stalls at idle (die out) 11

P.13A-766

P.13A-769

The engine stalls when accelerating (pass out) 12

P.13A-772

The engine stalls when decelerating 13

P.13A-774

Driving Hesitation, sag, Stumble, Poor acceleration or

Surge

Acceleration shock

14

15

P.13A-776

P.13A-779

Knocking 16

P.13A-781

Too high CO and HC concentration when idling 17

P.13A-782

TSB Revision

TROUBLE SYMPTOMS

IM240 test failure



Transient, mass emission tailpipe test failure

Purge flow test of the evaporative emission canister failure

Pressure test of the evaporative system failure

Generator output voltage is low (approximately 12.3 volts)

Power supply system and ignition switch-IG system

Fuel pump system

Ignition switch-ST system and starter relay system <M/T>

Ignition switch-ST system and starter relay system <TC-SST>

Ignition circuit system

A/C system

Engine oil pressure switch system

13A-49

INSPECTION

PROCEDURE

18

19

REFERENCE PAGE

P.13A-785

P.13A-789

20

21

22

23

24

25

26

27

28

P.13A-789

P.13A-791

P.13A-794

P.13A-805

P.13A-818

P.13A-830

P.13A-842

P.13A-847

P.13A-849

.

PROBLEM SYMPTOMS TABLE (FOR YOUR INFORMATION)

ITEMS

At starting Won't start

SYMPTOM

The starter cranks the engine, but there is no combustion within the cylinders, and the engine won't start.

The engine starts, but then engine soon stalls.

Starts up and dies

Hard starting

Idling stability Hunting

Rough idle

Engine starts after cranking a while.

Engine speed doesn't remain constant; changes at idle.

Usually, a judgement can be based upon the movement of the tachometer pointer, and the vibration transmitted to the steering wheel, shift lever, body, etc.

The engine doesn't idle at the correct speed.

Incorrect idle speed

Engine stall (die out)

Engine stall (pass out)

The engine stalls when the foot is taken from the accelerator pedal, regardless of whether the vehicle is moving or not.

The engine stalls when the accelerator pedal is depressed.

TSB Revision

13A-50

ITEMS

At driving

At stopped



SYMPTOM

Hesitation Sag "Hesitation" is the delay in response of the vehicle speed

(engine speed). This occurs when the accelerator is depressed in order to accelerate from the speed at which the vehicle is now traveling, or a temporary drop in vehicle speed

(engine speed) during such acceleration.

Serious hesitation is called

"sag".

Vehicle speed

Initial accelerator pedal depression

Hesitation

Normal

Sag

Time

AKX01361 AC

Poor acceleration Poor acceleration is inability to obtain an acceleration corresponding to the degree of throttle opening, even though acceleration is smooth. Also the inability to reach maximum speed.

Stumble Engine speed increase is delayed when the accelerator pedal is initially depressed for acceleration.

Vehicle speed

Initial

Normal accelerator pedal depression

Shock

Surge

Knocking

Run on

("Dieseling")

Idling

Time

Stumble

AKX01362 AD

The feeling of a comparatively large impact or vibration when the engine is accelerated or decelerated.

This is slight acceleration and deceleration feel usually felt during steady, light throttle cruise. Most notable under light loads.

A sharp sound during driving, which sounds like a hammer striking the cylinder walls. It makes poor driveability.

The condition in which the engine continues to run after the ignition switch is turned to the "LOCK" (OFF) position. Also called "dieseling".

TSB Revision



DIAGNOSTIC TROUBLE CODE PROCEDURES

13A-51

.

.

.

.

DTC P0011: Intake Variable Valve Timing System Target Error

TECHNICAL DESCRIPTION

• The ECM checks the variable valve timing system for malfunction.

DESCRIPTIONS OF MONITOR METHODS

The phase angle of the intake camshaft is higher than the specified value.

MONITOR EXECUTION

Continuous

.

MONITOR EXECUTION CONDITIONS

(Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be normal)

• Camshaft position sensor

• Crankshaft position sensor

• Engine coolant temperature sensor

• Throttle position sensor

• Engine oil control valve

TSB Revision

13A-52

DTC SET CONDITIONS

Logic Flow Chart



Start

No

Monitoring conditions

Yes

|Cam angle-target|

> 5˚CA

Yes

Continuous failure for 5secs

Yes

Malfunction

No

No

Good

End

Cam angle: Intake valve open timing (intake side)

Exhaust valve close timing (exhaust side)

Check Conditions

• More than 20 seconds have passed since the engine starting sequence was completed.

• Engine speed is 1,188 r/min or more.

• Engine coolant temperature is higher than 76° C

(169

° F).

Judgment Criterion

• The phase angle of the intake camshaft is 5 degrees or more for 5 seconds.

.


• None

AK704222

.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function

− OBD-II Drive Cycle −

Pattern 20

P.13A-9

.

.

TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)

• Intake engine oil control valve failed.

• Oil passage of variable valve timing control system clogged.

• Intake variable valve timing sprocket operation mechanism stuck.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824



DIAGNOSIS

Required Special Tools


• MB991824: V.C.I.



13A-53

STEP 1. Using scan tool MB991958, read the diagnostic trouble code (DTC).

CAUTION


(1) Connect scan tool MB991958 to the data link connector.

(2) Turn the ignition switch to the "ON" position.

(3) Set scan tool MB991958, read the DTC.

(4) Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is the diagnostic trouble code other than P0011 set?

YES : Refer to, Diagnostic Trouble Code Chart P.13A-44 .

NO : Go to Step 2.

MB991827

AC608435 AB

STEP 2. Check intake engine oil control valve itself.

• Check intake engine oil control valve itself (Refer to Engine

Oil Control Valve Check P.13A-912 ).

Q: Is the check result normal?

YES : Go to Step 3.

NO : Replace intake engine oil control valve. Then go to

Step 6.

STEP 3. Check oil passage of intake variable valve timing control system for being clogged.



NO : Repair it. Then go to Step 6.

STEP 4. Check intake variable valve timing sprocket operation mechanism for being stuck.




TSB Revision



STEP 5. Check the trouble symptoms.

(1) Carry out test drive with the drive cycle pattern. Refer to

Diagnostic Function

− OBD-II Drive Cycle − Pattern 20

P.13A-9 .

(2) Check the diagnostic trouble code (DTC).

Q: Is DTC P0011 set?

YES : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, ID Code

Registration Necessity Judgment Table <Vehicles with KOS> P.42B-12 or GROUP 42C, ID Codes

Registration Judgment Table <Vehicles with WCM>

P.42C-9 . Then go to Step 6.

NO : It can be assumed that this malfunction is intermittent.

Refer to GROUP 00, How to Use

Troubleshooting/Inspection Service Points

− How to

Cope with Intermittent Malfunctions P.00-15 .

STEP 6. Test the OBD-II drive cycle.

(1) Carry out a test drive with the drive cycle pattern. Refer to

Diagnostic Function


P.13A-9 .



YES : Retry the troubleshooting.

NO : The inspection is complete.

.

.

DTC P0012: Camshaft Position

− Timing Over-Retarded


• If the vehicle equipped with 4B11-T/C engine continues the rough driving like competitive running (the running that constantly repeats the cycle of the full opened position of the accelerator pedal and the full closed position of the accelerator pedal.), the amount of carbon mixed into the engine oil tends to increase. This can possibly cause the timing chain to gradually elongate. To prevent this, the function or logic monitoring the amount of elongation of the timing chain is integrated into the ECM. The details are shown in timing chain maintenance (Refer to GROUP 00,

Precautions Before Service

− Timing Chain Maintenance P.00-33 ).

.


Check Condition

• Ignition switch is "ON" position.


• The learning value for the current phase angle of

V.V.T. at the intake (retard angle) side and the exhaust (advanced angle) side is different from the initial phase angle of V.V.T. by more than the specified value.


• None

.

TROUBLESHOOTING HINTS (The most likely causes for this code to be set are: )

• Timing chain elongated.

TSB Revision



DIAGNOSIS

13A-55

STEP 1. Timing Chain Elongation Visual Check

Refer to GROUP 11A, On-vehicle Service

− Timing Chain Elongation Visual Check P.11A-17 .

Q: Are there any abnormalities?

YES : Initialize the learning value for the elongation of the timing chain. Refer to GROUP 00, Precautions Before

Service

− Timing Chain Maintenance

P.00-33 .

NO : Replace the timing chain and the oil pump chain.

Then initialize the learning value for the elongation of the timing chain. Refer to GROUP 00, Precautions

Before Service

− Timing Chain Maintenance

P.00-33 .

.

.

.

.

DTC P0014: Exhaust Variable Valve Timing System Target Error




The phase angle of the exhaust camshaft is higher than the specified value.


Continuous

.




• Not applicable







TSB Revision

13A-56





Start

No


Yes

|Cam angle-target|

> 5˚CA

Yes


Yes

Malfunction

No

No

Good

End





• Engine speed is 1,188 r/min or more.


(169

° F).


• The phase angle of the exhaust camshaft is 5 degrees or more for 5 seconds.

.


• None

AK704222

.




Pattern 20

P.13A-9

.

.


• Exhaust engine oil control valve failed.

• Oil passage of variable valve timing control system clogged.

• Exhaust variable valve timing sprocket operation mechanism stuck.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824



DIAGNOSIS



• MB991824: V.C.I.



13A-57


CAUTION









MB991827

AC608435 AB

STEP 2. Check exhaust engine oil control valve itself.

• Check exhaust engine oil control valve itself (Refer to

Engine Oil Control Valve Check P.13A-912 ).



NO : Replace exhaust engine oil control valve. Then go to

Step 6.

STEP 3. Check oil passage of exhaust variable valve timing control system for being clogged.




STEP 4. Check exhaust variable valve timing sprocket operation mechanism for being stuck.




TSB Revision





Diagnostic Function


P.13A-9 .










− How to




Diagnostic Function


P.13A-9 .





.

.

.

.

DTC P0016: Crankshaft/camshaft (intake) Position Sensor Phase Problem




The open timing of the intake valve is faster or slower than the specified value.


Continuous

.




• Not applicable







TSB Revision





Start

13A-59

No


Yes

Engine oil control valve solenoid OFF

Yes

Cam angle

<

θ MIN

Yes


Yes

Malfunction

No

No

No

Yes

Cam angle

>

θ MAX

No

Good

End



θ MAX : Maximum threshold value

θ MIN : Minimum threshold value

.


• Engine speed is between 594 r/min and 1,500 r/min.

• Engine coolant temperature is between 20° C

(68

° F) and 88° C (190° F).

• Intake engine oil control valve is "OFF".

• 1 second has elapsed after the above mentions have been met.


• The open timing of the intake valve is faster than

−25 degrees (ATDC) for 10 seconds.

or

• The open timing of the intake valve is slower than

5 degrees (ATDC) for 10 seconds.

TSB Revision

AK604370


• None

.




Pattern 20

P.13A-9

.

.


• Timing chain in out of place.

• Loose timing chain.

• Intake variable valve timing sprocket tooth coming off.

• ECM failed.

13A-60

Crankshaft position sensor connector

1 2 3

Oscilloscope



DIAGNOSIS


• MB991709: Test Harness

• MB992110: Power Plant ECU Check Harness

STEP 1. Using the oscilloscope, measure output wave pattern at crankshaft position sensor and intake camshaft position sensor.

(1) Disconnect the crankshaft position sensor connector B-13 and connect the test harness special tool (MB991709) between the separated connectors.

(2) Connect the oscilloscope probe to the crankshaft position sensor side connector terminal No. 3.

(3) Disconnect the intake camshaft position sensor connector

B-07, and connect test harness special tool (MB991709) between the separated connectors.

MB991709

AK704086 AB

Oscilloscope

Intake camshaft position sensor connector

1 2 3

(4) Connect the oscilloscope probe to the intake camshaft position sensor side connector terminal No. 3.

NOTE: When measuring with the ECM side connector, disconnect all ECM connectors. Connect the check harness special tool (MB992110) between the separated connectors. Then connect the oscilloscope probe to the check harness connector terminal No. 8 (crankshaft position sensor) and terminal No. 14 (intake camshaft position sensor).

(5) Start the engine and run at idle.

MB991709

AK604465 AD

5

0

5

0

Normal waveform

(Volt)

2 engine revolutions

Crankshaft position sensor output wave pattern

Intake camshaft position sensor output ware pattern

AK704223 AB

(6) Check the waveform.

• The waveform should show a pattern similar to the illustration.


Q: Is the waveform normal?



TSB Revision



13A-61



Diagnostic Function


P.13A-9 .








Refer to GROUP 00, How to Use Troubleshooting/

Inspection Service Points

− How to Cope with

Intermittent Malfunctions P.00-15 .

STEP 3. Check timing mark on the timing chain.

Q: Is timing chain in out of place?

YES : Repair it. Then go to Step 4.

NO : Check the following items, and repair or replace the defective items. a. Check the timing chain loose.

b. Check the intake variable valve timing sprocket tooth coming off.

Then go to Step 4.



Diagnostic Function


P.13A-9 .





TSB Revision



.

.

.

.

DTC P0017: Crankshaft/camshaft (exhaust) Position Sensor Phase Problem




The close timing of the exhaust valve is faster or slower than the specified value.


Continuous

.




• Not applicable







TSB Revision





Start

13A-63

No


Yes

Engine oil control valve solenoid OFF

Yes

Cam angle

<

θ MIN

Yes


Yes

Malfunction

No

No

No

Yes

Cam angle

>

θ MAX

No

Good

End



θ MAX : Maximum threshold value

θ MIN : Minimum threshold value

.


• Engine speed is between 594 r/min and 1,500 r/min.

• Engine coolant temperature is between 20° C

(68

° F) and 88° C (190° F).

• Exhaust engine oil control valve is "OFF".

• 1 second has elapsed after the above mentions have been met.


• The close timing of the exhaust valve is faster than

−15 degrees (ATDC) for 10 seconds.

or

• The close timing of the exhaust valve is slower than 15 degrees (ATDC) for 10 seconds.

TSB Revision

AK604370


• None

.


Refer to Diagnostic Function − OBD-II Drive Cycle −

Pattern 20

P.13A-9

.

.


• Timing chain in out of place.

• Loose timing chain.

• Exhaust variable valve timing sprocket tooth coming off.

• ECM failed.

13A-64

Crankshaft position sensor connector

1 2 3

Oscilloscope



DIAGNOSIS




STEP 1. Using the oscilloscope, measure output wave pattern at crankshaft position sensor and exhaust camshaft position sensor.

(1) Disconnect the crankshaft position sensor connector B-13 and connect the test harness special tool (MB991709) between the separated connectors.

(2) Connect the oscilloscope probe to the crankshaft position sensor side connector terminal No. 3.

(3) Disconnect the exhaust camshaft position sensor connector

B-05, and connect test harness special tool (MB991709) between the separated connectors.

MB991709

AK704086 AB

Oscilloscope

Exhaust camshaft position sensor connector

1 2 3

(4) Connect the oscilloscope probe to the exhaust camshaft position sensor side connector terminal No. 3.

NOTE: When measuring with the ECM side connector, disconnect all ECM connectors. Connect the check harness special tool (MB992110) between the separated connectors. Then connect the oscilloscope probe to the check harness connector terminal No. 8 (crankshaft position sensor) and terminal No. 7 (exhaust camshaft position sensor).


MB991709

AK604465 AE

5

0

5

0

Normal waveform

(Volt)

2 engine revolutions

Crankshaft position sensor output wave pattern

Exhaust camshaft position sensor output ware pattern

AK704224 AB

(6) Check the waveform.

• The waveform should show a pattern similar to the illustration.


Q: Is the waveform normal?



TSB Revision



13A-65



Diagnostic Function


P.13A-9 .








Refer to GROUP 00, How to Use Troubleshooting/

Inspection Service Points

− How to Cope with

Intermittent Malfunctions P.00-15 .

STEP 3. Check timing mark on the timing chain.

Q: Is timing chain in out of place?

YES : Repair it. Then go to Step 4.

NO : Check the following items, and repair or replace the defective items. a. Check the timing chain loose.

b. Check the exhaust variable valve timing sprocket tooth coming off.

Then go to Step 4.



Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0031: Heated Oxygen Sensor (front) Heater Circuit Low

HEATED OXYGEN SENSOR (FRONT) HEATER CIRCUIT

FUSIBLE LINK 36

RELAY BOX

(ENGINE COMPARTMENT)

A-34X

2

1 3

4

3

1

4

OFF

ON

MFI

RELAY

2

22

20A

TO ECM

HEATED OXYGEN SENSOR

(FRONT)

C-34

1 2

3 4

1 2 4 3

TO ECM TO ECM

8

A-13

1

10

2 3 4 5 6 7 8

11 12 13 14 15 16 17 18 19 20 21

9

22

34

B-09

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

ENGINE

CONTROL

MODULE

AK704225 AB

TSB Revision

Connector: A-13

A-13



Connector: B-09

B-09 (GR)

ECM

13A-67

Connector: A-34X

AK704229AB

MFI relay

A-34X

AK704226

AB

Connector: C-34

Heated oxygen sensor (front)

AK704227 AB

C-34 (B)

.

CIRCUIT OPERATION

• Power is supplied from the MFI relay (terminal

No. 2) to the heated oxygen sensor (front) heater.

• The ECM (terminal No. 34) controls continuity to the heated oxygen sensor (front) heater by turning the power transistor in the ECM "ON" and

"OFF".

.

.


• The ECM checks whether the heater current is within a specified range when the heater is energized.

• The ECM checks whether the heater voltage is within a specified range when the heater is not energized.

SRS-ECU

AK704228

AB


Heated oxygen sensor heater (front) current or voltage is out of specified range.

.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision

13A-68





Start


Yes

Heater ON

Yes

Current < 0.17A

or

Current > 10.5A

Yes

No

No

No

Voltage < 2.0V

Yes

No

No


Yes

Malfunction

Good

End

.



• While the heated oxygen sensor (front) heater is on.

• Battery positive voltage is between 11 and 16.5 volts.

Judgement Criterion

• The heated oxygen sensor (front) heater current has continued to be lower than 0.17 ampere for 2 seconds.



.

AK604306

• While the heated oxygen sensor (front) heater is off.



• The heated oxygen sensor (front) heater voltage has continued to be lower than 2.0 volts for 2 seconds.

.


• None

.



Pattern 2

P.13A-9

.

TSB Revision



13A-69


• Open or shorted heated oxygen sensor (front) heater circuit, harness damage or connector damage.

• Heated oxygen sensor (front) heater failed.

• ECM failed.

DIAGNOSIS




STEP 1. Check harness connector C-34 at the heated oxygen sensor (front) for damage.

Q: Is the harness connector in good condition?


NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection P.00E-2

. Then go to Step 12.

Heated oxygen sensor component side connector

STEP 2. Check the heated oxygen sensor (front).

(1) Disconnect heated oxygen sensor (front) connector C-34 and connect test harness special tool, MB991658, to the connector on the heated oxygen sensor (front) side.

(2) Measure the resistance between heated oxygen sensor connector terminal No. 1 and terminal No. 2.

Standard value: 4.5

− 8.0 Ω [at 20° C (68° F)]

Q: Is the measured resistance between 4.5 and 8.0

Ω [at

20

° C (68° F)]?


NO : Replace the heated oxygen sensor (front). Then go to

Step 12.

MB991658

AK604492AB

C-34 harness connector: component side

2 1

4 3

STEP 3. Measure the power supply voltage at heated oxygen sensor (front) harness side connector C-34.

(1) Disconnect the connector C-34 and measure at the harness side.


(3) Measure the voltage between terminal No. 1 and ground.

• Voltage should be battery positive voltage.


Q: Is battery positive voltage (approximately 12 volts) present?



AK604172 AH

TSB Revision

13A-70

Body side harness



STEP 4. Check harness connector A-34X at the MFI relay for damage.


YES : Repair harness wire between MFI relay connector

A-34X (terminal No. 2) and heated oxygen sensor

(front) connector C-34 (terminal No. 1) because of open circuit or short circuit to ground. Then go to Step

12.




STEP 5. Measure the power supply voltage at ECM connector B-09 by using power plant ECU check harness special tool MB992110.

(1) Disconnect all ECM connectors. Connect the power plant

ECU check harness special tool MB992110 between the separated connectors.


MB992110

ECM

AK604040 AB







Power plant ECU check harness connector

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AK604173 AB

TSB Revision



13A-71

STEP 6. Check harness connector B-09 at ECM for damage.






STEP 7. Check for open circuit and short circuit to ground between heated oxygen sensor (front) connector C-34

(terminal No. 2) and ECM connector B-09 (terminal No. 34).

NOTE: Check harness after checking intermediate connector

A-13. If intermediate connector is damaged, repair or replace it.

Refer to GROUP 00E, Harness Connector Inspection P.00E-2 .

Then go to Step 12.

Q: Is the harness wire in good condition?




P.42C-9









STEP 9. Check for harness damage between MFI relay connector A-34X (terminal No. 2) and heated oxygen sensor (front) connector C-34 (terminal No. 1).




STEP 10. Check for harness damage between heated oxygen sensor (front) connector C-34 (terminal No. 2) and

ECM connector B-09 (terminal No. 34).



Refer to GROUP 00E, Harness Connector Inspection P.00E-2 .

Then go to Step 12.




TSB Revision





Diagnostic Function


P.13A-9 .






P.42C-9





− How to




Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0032: Heated Oxygen Sensor (front) Heater Circuit High

HEATED OXYGEN SENSOR (FRONT) HEATER CIRCUIT

FUSIBLE LINK 36

13A-73

RELAY BOX


A-34X

2

1 3

4

3

1

4

OFF

ON

MFI

RELAY

2

22

20A

TO ECM


(FRONT)

C-34

1 2

3 4

1 2 4 3

TO ECM TO ECM

8

A-13

1

10

2 3 4 5 6 7 8

11 12 13 14 15 16 17 18 19 20 21

9

22

34

B-09

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

ENGINE

CONTROL

MODULE

AK704225 AB

TSB Revision

13A-74

Connector: A-13

A-13



Connector: B-09

B-09 (GR)

ECM


AK704229AB

MFI relay

A-34X

AK704226

AB

Connector: C-34

Heated oxygen sensor (front)

AK704227 AB

C-34 (B)

SRS-ECU

AK704228

AB

.



No. 2) to the heated oxygen sensor (front) heater.

• The ECM (terminal No. 34) controls continuity to the heated oxygen sensor (front) heater by turning the power transistor in the ECM "ON" and

"OFF".

.



.


Heated oxygen sensor heater (front) current is out of specified range.

.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision





Start

13A-75


Yes

Heater ON

Yes

Current < 0.17A

or

Current > 10.5A

Yes

No

No

No

Voltage < 2.0V

Yes

No

No


Yes

Malfunction

Good

End

AK604306

.



• While the heated oxygen sensor (front) heater is on.



• The heated oxygen sensor (front) heater current has continued to be higher than 10.5 ampere for

2 seconds.

.


• None

.




Pattern 2

P.13A-9

.

.


• Heated oxygen sensor (front) heater failed.

• ECM failed.

TSB Revision

13A-76

MB991658



DIAGNOSIS

Required Special Tool:



STEP 1. Check the heated oxygen sensor (front).

(1) Disconnect heated oxygen sensor (front) connector C-34 and connect test harness special tool, MB991658, to the connector on the heated oxygen sensor (front) side.



− 8.0 Ω [at 20° C (68° F)]


Ω [at

20

° C (68° F)]?


NO : Replace the heated oxygen sensor (front). Then go to

Step 3.

AK604492AB



Diagnostic Function − OBD-II Drive Cycle − Pattern 2

P.13A-9 .










− How to




Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0037: Heated Oxygen Sensor (rear) Heater Circuit Low

13A-77

FUSIBLE LINK 36

HEATED OXYGEN SENSOR (REAR) HEATER CIRCUIT

RELAY BOX


A-34X

2

1 3

4

3

1

4

2

ON

OFF

MFI

RELAY

22

20A


(REAR)

D-35

1 2

3 4

B-09

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

1

2

TO ECM

C-47

1

10

2 3 4 5 6 7 8

11 12 13 14 15 16 17 18 19 20 21

9

22

1

C-43

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 1718 19 20 2122 2324

J/C(4)

10

11

2

TO ECM TO ECM

C-45

1

2

3 4 5 6

4

A-13

1

10

2 3 4 5 6 7 8

11 12 13 14 15 16 17 18 19 20 21

9

22

35

4 3

ENGINE

CONTROL

MODULE

AK704230 AB

TSB Revision

13A-78

Connector: A-13

A-13



Connectors: C-43, C-45 and C-47

C-47

C-45

C-43 (B)

AK704229AB

AK704231 AB


Connector: D-35

MFI relay

Connector: B-09

A-34X

AK704226

AB

ECM

Heated oxygen sensor (rear)

Rear heater duct

D-35 (B)

B-09 (GR)

AK704232 AB

AK704227 AB

.

.



No. 2) to the heated oxygen sensor (rear) heater.

• The ECM (terminal No. 35) controls continuity to the heated oxygen sensor (rear) heater by turning the power transistor in the ECM "ON" and

"OFF".

.



• The ECM checks whether the heater voltage is within a specified range when the heater is not energized.


Heated oxygen sensor (rear) heater current or voltage is out of specified range.

.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision





Start

13A-79


Yes

Heater ON

Yes

Current < 0.17A

or

Current > 10.5A

Yes

No

No

No

Voltage < 2.0V

Yes

No

No


Yes

Malfunction

Good

End

AK604306

.



• While the heated oxygen sensor (rear) heater is on.



• The heated oxygen sensor (rear) heater current has continued to be lower than 0.17 ampere for 2 seconds.




• While the heated oxygen sensor (rear) heater is off.



• The heated oxygen sensor (rear) heater voltage has continued to be lower than 2.0 volts for 2 seconds.

.

• None

TSB Revision



.

.




Pattern 2

P.13A-9

.


• Open or shorted heated oxygen sensor (rear) heater circuit, or harness damage.

• Heated oxygen sensor (rear) heater failed.

• Connector damage.

• ECM failed.

DIAGNOSIS




STEP 1. Check harness connector D-35 at the heated oxygen sensor (rear) for damage.







STEP 2. Check the heated oxygen sensor (rear).

(1) Disconnect heated oxygen sensor (rear) connector D-35 and connect test harness special tool, MB991658, to the connector on the heated oxygen sensor (rear) side.



− 8.0 Ω [at 20° C (68° F)]


Ω [at

20

° C (68° F)]?


NO : Replace the heated oxygen sensor (rear). Then go to

Step 12.

MB991658

AK604492AB

D-35 harness connector: component side

2 1

4 3

STEP 3. Measure the power supply voltage at heated oxygen sensor (rear) harness side connector D-35.

(1) Disconnect the connector D-35 and measure at the harness side.








AK604172 AI

TSB Revision

Body side harness



13A-81

STEP 4. Check harness connector A-34X at the MFI relay for damage.


YES : Check harness connectors C-43 and C-47 at intermediate connectors for damage, and repair or replace as required. Refer to GROUP 00E, Harness

Connector Inspection P.00E-2 . If intermediate connectors are in good condition, repair harness wire between MFI relay connector A-34X (terminal No. 2) and heated oxygen sensor (rear) connector D-35

(terminal No. 1) because of open circuit or short circuit to ground. Then go to Step 12.




STEP 5. Measure the power supply voltage at ECM connector B-09 by using power plant ECU check harness special tool MB992110.




MB992110

ECM

AK604040 AB








16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AK604174 AB

TSB Revision









STEP 7. Check for open circuit and short circuit to ground between heated oxygen sensor (rear) connector D-35


NOTE: Check harness after checking intermediate connectors

A-13 and C-45. If intermediate connectors are damaged, repair or replace them. Refer to GROUP 00E, Harness Connector

Inspection P.00E-2

. Then go to Step 12.





P.42C-9









STEP 9. Check for harness damage between MFI relay connector A-34X (terminal No. 2) and heated oxygen sensor (rear) connector D-35 (terminal No. 1).


C-43 and C-47. If intermediate connectors are damaged, repair or replace them. Refer to GROUP 00E, Harness Connector






TSB Revision



13A-83

STEP 10. Check for harness damage between heated oxygen sensor (rear) connector D-35 (terminal No. 2) and



A-13 and C-45. If intermediate connectors are damaged, repair or replace them. Refer to GROUP 00E, Harness Connector









P.13A-9 .






P.42C-9





− How to




Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0038: Heated Oxygen Sensor (rear) Heater Circuit High

FUSIBLE LINK 36

HEATED OXYGEN SENSOR (REAR) HEATER CIRCUIT

RELAY BOX


A-34X

2

1 3

4

3

1

4

2

ON

OFF

MFI

RELAY

22

20A


(REAR)

D-35

1 2

3 4

B-09

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

1

2

TO ECM

C-47

1

10

2 3 4 5 6 7 8

11 12 13 14 15 16 17 18 19 20 21

9

22

1

C-43

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 1718 19 20 2122 2324

J/C(4)

10

11

2

TO ECM TO ECM

C-45

1

2

3 4 5 6

4

A-13

1

10

2 3 4 5 6 7 8

11 12 13 14 15 16 17 18 19 20 21

9

22

35

4 3

ENGINE

CONTROL

MODULE

AK704230 AB

TSB Revision

Connector: A-13

A-13



Connectors: C-43, C-45 and C-47

C-47

C-45

C-43 (B)

AK704229AB

13A-85

AK704231 AB


Connector: D-35

MFI relay

Connector: B-09

A-34X

AK704226

AB

ECM

Heated oxygen sensor (rear)

Rear heater duct

D-35 (B)

B-09 (GR)

AK704232 AB

AK704227 AB

.



No. 2) to the heated oxygen sensor (rear) heater.

• The ECM (terminal No. 35) controls continuity to the heated oxygen sensor (rear) heater by turning the power transistor in the ECM "ON" and

"OFF".

.



.


Heated oxygen sensor heater (rear) current is out of specified range.

.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision

13A-86





Start


Yes

Heater ON

Yes

Current < 0.17A

or

Current > 10.5A

Yes

No

No

No

Voltage < 2.0V

Yes

No

No


Yes

Malfunction

Good

End

AK604306

.



• While the heated oxygen sensor (rear) heater is on.



• The heated oxygen sensor (rear) heater current has continued to be higher than 10.5 ampere for

2 seconds.

.


• None

.




Pattern 2

P.13A-9

.

.


• Heated oxygen sensor (rear) failed.

• ECM failed.

TSB Revision

MB991658



DIAGNOSIS

Required Special Tool:



13A-87

STEP 1. Check the heated oxygen sensor (rear).

(1) Disconnect heated oxygen sensor (rear) connector D-35 and connect test harness special tool, MB991658, to the connector on the heated oxygen sensor (rear) side.



− 8.0 Ω [at 20° C (68° F)]


Ω [at

20

° C (68° F)]?


NO : Replace the heated oxygen sensor (rear). Then go to

Step 3.

AK604492AB




P.13A-9 .










− How to




Diagnostic Function


P.13A-9 .





TSB Revision



.

.

.

DTC P0069: Abnormal Correlation Between Manifold Absolute Pressure Sensor And Barometric

Pressure Sensor


• The ECM detects abnormality in the sensor by comparing the manifold absolute pressure sensor output with the barometric pressure sensor output.


Continuous


The ECM compares the manifold absolute pressure sensor output with the barometric pressure sensor output while the engine control relay is in

"ON" position after the ignition switch is in

"LOCK" (OFF) position. When the difference exceeds the specified value between them, the

ECM determines whether the manifold absolute pressure sensor / the barometric pressure sensor has malfunction or not.

.




• Not applicable


• Mass airflow sensor


• Intake air temperature sensor

• Barometric pressure sensor


• Manifold absolute pressure sensor

.

TSB Revision





13A-89

Start

No

No


Yes

|Barometric pressuremanifold pressure| > 9kPa

(2.7 in. Hg)

Yes


Yes

Malfunction

No

Good

End

.


• Ignition switch is in "LOCK" (OFF) position.

• After 2 seconds pass from the time when the engine is stopped.


(32 ° F).


• Difference between manifold absolute pressure sensor output and barometric pressure sensor output is more than 9 kPa (2.7 in.Hg) for 2 seconds.

AK704095


• None

.


None.

.


• Manifold absolute pressure sensor failed.

• Barometric pressure sensor failed.

• ECM failed.

TSB Revision

13A-90

Data link connector

MB991910

MB991824



DIAGNOSIS



• MB991824: V.C.I.




CAUTION









MB991827

AC608435 AB

TSB Revision



13A-91

STEP 2. Using scan tool MB991958, check data list item 8:

Manifold Absolute Pressure Sensor.


(2) Set scan tool MB991958 to the data reading mode for item

8, Manifold Absolute Pressure Sensor.

• When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg).

• When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg).

• When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg).


(3) Start the engine.

• When the engine is idling, 16 − 36 kPa (4.7 − 10.6 in.Hg).

• When the engine is suddenly revved, manifold absolute pressure varies.


Q: Is the sensor operating properly?


NO : Refer to, DTC P0106

− Manifold Absolute Pressure

Circuit Range/Performance Problem P.13A-125

, DTC

P0107

− Manifold Absolute Pressure Circuit Low Input

P.13A-134

, DTC P0108 − Manifold Absolute Pressure

Circuit High Input P.13A-142

.



(2) Erase the DTC.


(4) Turn the ignition switch to "LOCK" (OFF) position and then wait 2 seconds.












− How to


TSB Revision





(2) Erase the DTC.


(4) Turn the ignition switch to "LOCK" (OFF) position and then wait 2 seconds.







DTC P0096: Intake Air Temperature Circuit Range/Performance Problem (sensor 2)

INTAKE AIR TEMPERATURE SENSOR 2 CIRCUIT

B-16

(MU802409)

1 2

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

2

16

97

5 V

INTAKE AIR TEMPERATURE

SENSOR 2

1

17

A-13

1

2 3 4 5 6 7 8

10

11 12 13 14 15 16 17 18 19 20 21

9

22

98

ENGINE CONTROL MODULE

AK704399 AB

TSB Revision

Connector: B-10

B-10 (GR)



ECM

Connector: B-16

B-16 (B)

13A-93


AK704235 AB

AK704400 AB

.


• Approximately 5 volts are applied to the intake air temperature sensor 2 output terminal (terminal

No. 1) from the ECM (terminal No. 98) via the resistor in the ECM. The ground terminal (terminal No. 2) is grounded with ECM (terminal No.

97).

• The intake air temperature sensor 2 is a negative temperature coefficient type of resistor. When the intake air temperature rises, the resistance decreases.

• The intake air temperature sensor 2 output voltage increases when the resistance increases and decreases when the resistance decreases.

.


• The intake air temperature sensor 2 converts the intake air temperature to a voltage.

• The ECM checks whether this voltage is within a specified range.

.


Intake air temperature sensor 2 output voltage does not change when specified go/stop operations are repeated.

.


Continuous

.

.




• Not applicable



TSB Revision

13A-94





Start


Yes

Intake air temp.

changes

No

No

Yes

No

Go/stop operation for specified times

Yes

Malfunction Good

End

AK604314

.

.



(169

° F).

• Repeat 2 or more times: drive

*1

, stop

*2

.

Drive

*1

: vehicle speed higher than 50 km/h (31 mph) lasting a total of 60 seconds or more.

Stop

*2

: vehicle speed lower than 1.5 km/h (1.0 mph) lasting 30 seconds or more.


• Changes in the intake air temperature is lower than 1 ° C (1.8° F).


• Control as if the intake air temperature in the intake manifold is 25

° C.

.




Pattern 7

P.13A-9

.

.


• Intake air temperature sensor 2 failed.

• Harness damage or connector damage.

• ECM failed.

TSB Revision

Intake air temperature sensor 2 connector

1 2



DIAGNOSIS

13A-95

STEP 1. Check the intake air temperature sensor 2.

(1) Disconnect the intake air temperature sensor 2 connector

B-16.

(2) Measure the resistance between intake air temperature sensor 2 side connector terminal No. 1 and No. 2.

AK704080 AB


AK403661 AE

(3) Measure resistance while heating the sensor using a hair drier.

Standard value:

13

− 18 kΩ [at −20° C (−4° F)]

5.1

− 6.9 kΩ [at 0° C (32° F)]

2.0

− 3.0 kΩ [at 20° C (68° F)]

0.9

− 1.5 kΩ [at 40° C (104° F)]

0.40

− 0.78 kΩ [at 60° C (140° F)]

0.23

− 0.42 kΩ [at 80° C (176° F)]

Q: Is the measured resistance at the standard value?


NO : Replace the intake air temperature sensor 2. Then go

to Step 8.

STEP 2. Check harness connector B-16 at the intake air temperature sensor 2 for damage.






TSB Revision

13A-96

B-16 harness connector: component side

2 1



STEP 3. Check the continuity at intake air temperature sensor 2 harness side connector B-16.

(1) Disconnect the connector B-16 and measure at the harness side.

(2) Check for the continuity between terminal No. 2 and ground.

• Continuity (2 ohms or less)

Q: Does continuity exist?



AK704401 AB







STEP 5. Check for harness damage between intake air temperature sensor 2 connector B-16 (terminal No. 2) and




Repair to GROUP 00E, Harness Connector Inspection

P.00E-2














TSB Revision



13A-97

STEP 7. Check for harness damage between intake air temperature sensor 2 connector B-16 (terminal No. 1) and





P.00E-2










Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0097: Intake Air Temperature Circuit Low Input (sensor 2)


B-16

(MU802409)

1 2

2

16


SENSOR 2

1

17

A-13

1

2 3 4 5 6 7 8

10

11 12 13 14 15 16 17 18 19 20 21

9

22

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

97 98


5 V

AK704399 AB

Connector: B-10

ECM

Connector: B-16

B-16 (B)


B-10 (GR)

AK704235 AB

.




97).


AK704400 AB


.

.




TSB Revision

.

.


Intake air temperature sensor 2 output voltage is out of specified range.


Continuous



13A-99




• Not applicable


• Not applicable

.



Start

No


Yes

No

Output voltage < 0.2V

Yes

Yes

No

Output voltage > 4.6V

No


Yes

Malfunction Good

End

.

Check Condition

• 2 seconds or more have passed since the engine starting sequence was completed.

AK604315

.


• Intake air temperature sensor 2 output voltage has continued to be 0.2 volt or lower [corresponding to an intake air temperature of 115

° C (239° F) or higher] for 2 seconds.

TSB Revision





° C.

.




Pattern 23

P.13A-9

.

.



• Shorted intake air temperature sensor 2 circuit, or connector damage.

• ECM failed.

DIAGNOSIS


1 2









B-16.


• There should be continuity. (0.23 − 18 kΩ)

Q: Is the measured resistance between 0.23 and 18 k

Ω?



to Step 5..

AK704080 AB

STEP 3. Check for short circuit to ground between intake air temperature sensor 2 connector B-16 (terminal No. 1) and ECM connector B-10 (terminal No. 98).




P.00E-2





TSB Revision



13A-101












Diagnostic Function


P.13A-9 .





DTC P0098: Intake Air Temperature Circuit High Input (sensor 2)


B-16

(MU802409)

1 2

2

16


SENSOR 2

1

17

A-13

1

10

2 3 4 5 6 7 8

11 12 13 14 15 16 17 18 19 20 21

9

22

97 98

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118


5 V

AK704399 AB

TSB Revision

13A-102

Connector: B-10

B-10 (GR)



ECM

Connector: B-16

B-16 (B)


AK704235 AB

AK704400 AB

.




97).



.




.



.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision





Start

13A-103

No


Yes

No


Yes

Yes

No


No


Yes

Malfunction Good

End

AK604315

.

Check Condition


.




Pattern 23

P.13A-9

.


• Intake air temperature sensor 2 output voltage has continued to be 4.6 volts or higher [corresponding to an intake air temperature of

−40° C

(

−40° F) or lower] for 2 seconds.

.



• Open intake air temperature sensor 2 circuit, or connector damage.

• ECM failed.

.



° C.

DIAGNOSIS



TSB Revision

13A-104


1 2


2 1











B-16.




Ω?



to Step 9.

AK704080 AB

STEP 3. Measure the sensor supply voltage at intake air temperature sensor 2 harness side connector B-16.




• Voltage should be between 4.5 and 4.9 volts.


Q: Is the measured voltage between 4.5 and 4.9 volts?



AK704402 AB







TSB Revision

Body side harness

MB992110


82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

106

118

105 104 103 102 101 100

99 98 97 96 95

117 116 115 114 113 112 111 110 109 108 107



13A-105

STEP 5. Measure the sensor supply voltage at ECM connector B-10 by using power plant ECU check harness special tool MB992110.




B-16.


ECM

AK604171 AB





YES : Check harness connector A-13 at intermediate connector for damage, and repair or replace as required. Refer to GROUP 00E, Harness Connector

Inspection P.00E-2 . If intermediate connector is in good condition, repair harness wire between intake air temperature sensor 2 connector B-16 (terminal No. 1) and ECM connector B-10 (terminal No. 98) because of open circuit. Then go to Step 9.

NO : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, ID Code





2 1

AK704403 AB

AK704401 AB

STEP 6. Check the continuity at intake air temperature sensor 2 harness side connector B-16.










TSB Revision









STEP 8. Check for open circuit between intake air temperature sensor 2 connector B-16 (terminal No. 2) and





P.00E-2










Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0101: Mass Airflow Circuit Range/Performance Problem

MASS AIRFLOW SENSOR CIRCUIT

FUSIBLE LINK 36

13A-107

RELAY BOX


A-34X

2

1 3

4

3

1

4

ON

OFF

MFI

RELAY

2

22

20A

A-07

(MU805110)

1 2 3 4

TO ECM

2

3

HEAT

SENSITIZING

RESISTANCE

4

MASS AIRFLOW SENSOR

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

87 88

ENGINE

CONTROL

MODULE

AK704233 AB

TSB Revision

13A-108

Connector: A-07



Connector: B-10

Mass airflow sensor

B-10 (GR)

A-07 (GR)


AK704234 AB

MFI relay

ECM

AK704235 AB

A-34X

AK704226 AB

.


• The mass airflow sensor power is supplied from the MFI relay (terminal No. 2), and the ground is provided on the ECM (terminal No. 88).

• A voltage that is according to the mass airflow rate is sent to the ECM (terminal No. 87) from the mass airflow sensor output terminal (terminal No.

3).

.

.


• While the engine is running, the mass airflow sensor outputs electric current which corresponds to the mass airflow rate.

• The ECM converts the electric current into the voltage and checks whether the voltage is within a specified range while the engine is running.


Compare load value with mass airflow sensor output voltage.

.


Continuous

.

.




• Not applicable



TSB Revision



DTC SET CONDITIONS <Range/Performance problem

− high>


13A-109

Start

No


Yes

Output voltage

>= 3.5V

Yes


Yes

Malfunction

No

No

Good

End


• Throttle position sensor output voltage is 1.0 volt or lower.

• Mass airflow sensor output voltage is 4.9 volts

(corresponding to an air flow rate of 387 g/sec) or lower.

.

AK604308


• Mass airflow sensor output voltage has continued to be 3.5 volts (corresponding to an air flow rate of 119 g/sec) or higher for 2 seconds.

TSB Revision




− low >


Start

No


Yes

Output voltage

<= 1.8V

Yes


Yes

Malfunction

End

No

No

Good

.


• Engine speed is 1,500 r/min or higher.

• Throttle position sensor output voltage is 1.5 volts or higher.

• Mass airflow sensor output voltage is 0.2 volt

(corresponding to an air flow rate of 0 g/sec) or higher.


• Mass airflow sensor output voltage has continued to be 1.8 volts (corresponding to an air flow rate of 10 g/sec) or lower for 2 seconds.

AK604309


• None

.




Pattern 6

P.13A-9

.

.


• Mass airflow sensor failed.

• Mass airflow sensor circuit harness damage, or connector damage.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824

MB991827



DIAGNOSIS

13A-111



• MB991824: V.C.I.



AC608435 AB


Mass Airflow Sensor.

CAUTION





10, Mass Airflow Sensor.

(4) Warm up the engine to normal operating temperature: 80

° C to 95

° C (176° F to 203° F).

• The standard value during idling should be between

1,300 and 1,650 millivolts.

• When the engine is revved, the mass airflow rate should increase according to the increase in engine speed.



YES : It can be assumed that this malfunction is intermittent.



− How to



STEP 2. Check harness connector A-07 at mass airflow sensor and harness connector A-34X at MFI relay for damage.






STEP 3. Check for harness damage between MFI relay connector A-34X (terminal No. 2) and mass airflow sensor connector A-07 (terminal No. 2).




TSB Revision

13A-112

A-07 harness connector: component side

4 3 2 1



AK704236 AB







STEP 5. Check the continuity at mass airflow sensor harness side connector A-07.

(1) Disconnect the connector A-07 and measure at the harness side.





NO : Repair harness wire between mass airflow sensor connector A-07 (terminal No. 4) and ECM connector

B-10 (terminal No. 88) because of harness damage.

Then go to Step 8.

STEP 6. Check for harness damage between mass airflow sensor connector A-07 (terminal No. 3) and ECM connector

B-10 (terminal No. 87).




STEP 7. Replace the mass airflow sensor.

(1) Replace the mass airflow sensor.


Diagnostic Function


P.13A-9 .










Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0102: Mass Airflow Circuit Low Input


FUSIBLE LINK 36

13A-113

RELAY BOX


A-34X

2

1 3

4

3

1

4

ON

OFF

MFI

RELAY

2

22

20A

A-07

(MU805110)

1 2 3 4

TO ECM

2

3

HEAT

SENSITIZING

RESISTANCE

4

MASS AIRFLOW SENSOR

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

87 88

ENGINE

CONTROL

MODULE

AK704233 AB

TSB Revision

13A-114

Connector: A-07



Connector: B-10

Mass airflow sensor

B-10 (GR)

A-07 (GR)


AK704234 AB

MFI relay

ECM

AK704235 AB

A-34X

AK704226 AB

.




3).

.

.


• While the engine is running, the mass airflow sensor outputs voltage which corresponds to the mass airflow rate.

• The ECM checks whether the voltage output by the mass airflow sensor while the engine is running is within a specified range.


Mass airflow sensor output voltage is out of specified range.

.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision





Start

13A-115


Yes

Output voltage

< 0.2V

Yes

No

No

Yes

Output voltage

> 4.9V

No

No


Yes

Malfunction Good

End

AK604310

Check Condition

• 3 seconds or more have passed since the ignition switch was turned to "ON" position.


• Mass airflow sensor output voltage has continued to be lower than 0.2 volt (corresponding to an air flow rate of 0 g/sec) for 2 seconds.

.


• None

.




Pattern 23

P.13A-9

.

.



• Open or shorted mass airflow sensor circuit, or connector damage.

• ECM failed.

TSB Revision

13A-116

Data link connector

MB991910

MB991824

MB991827


4 3 2 1



DIAGNOSIS



• MB991824: V.C.I.




AC608435 AB



CAUTION







° C to 95 ° C (176° F to 203° F).









− How to



AK704237 AB

STEP 2. Check harness connector A-07 at mass airflow sensor for damage.






STEP 3. Measure the power supply voltage at mass airflow sensor harness side connector A-07.









TSB Revision



13A-117

STEP 4. Check harness connector A-34X at MFI relay for damage.


YES : Repair harness wire between MFI relay connector

A-34X (terminal No. 2) and mass airflow sensor connector A-07 (terminal No. 2) because of open circuit or short circuit to ground. Then go to Step 10.










TSB Revision

13A-118

Body side harness



STEP 6. Measure the sensor output voltage at ECM connector B-10 by using power plant ECU check harness special tool MB992110.




MB992110

ECM

AK604171 AB


• When the engine is revved, voltage should be increase in response to revving.

Q: Is the measured voltage normal?




82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

106

118

105 104 103 102 101 100

99 98 97 96 95

117 116 115 114 113 112 111 110 109 108 107

AK604176 AB

STEP 7. Check for open circuit and short circuit to ground between mass airflow sensor connector A-07 (terminal No.

3) and ECM connector B-10 (terminal No. 87).




TSB Revision



13A-119

STEP 8. Replace the mass airflow sensor.

(1) Replace the mass airflow sensor.


Diagnostic Function


P.13A-9 .






P.42C-9









° C to 95

° C (176° F to 203° F).









− How to





P.42C-9





P.13A-9 .





TSB Revision



DTC P0103: Mass Airflow Circuit High Input


FUSIBLE LINK 36

RELAY BOX


A-34X

2

1 3

4

3

1

4

ON

OFF

MFI

RELAY

2

22

20A

A-07

(MU805110)

1 2 3 4

TO ECM

2

3

HEAT

SENSITIZING

RESISTANCE

4

MASS AIRFLOW SENSOR

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

87 88

ENGINE

CONTROL

MODULE

AK704233 AB

TSB Revision



Connector: B-10 Connector: A-07

Mass airflow sensor

B-10 (GR)

A-07 (GR)


AK704234 AB

MFI relay

ECM

13A-121

AK704235 AB

A-34X

AK704226 AB

.




3).

.

.


• While the engine is running, the mass airflow sensor outputs voltage which corresponds to the mass airflow rate.

• The ECM checks whether the voltage output by the mass airflow sensor while the engine is running is within a specified range.


Mass airflow sensor output voltage is out of specified range.

.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision

13A-122





Start


Yes

Output voltage

< 0.2V

Yes

No

No

Yes

Output voltage

> 4.9V

No

No


Yes

Malfunction Good

End

AK604310

Check Condition

• 3 seconds or more have passed since the ignition switch was turned to "ON" position.


• Mass airflow sensor output voltage has continued to be higher than 4.9 volts (corresponding to an air flow rate of 387 g/sec) for 2 seconds.

.


• None

.




Pattern 23

P.13A-9

.

.



• Open mass airflow sensor circuit, or connector damage.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824

MB991827


4 3 2 1



DIAGNOSIS

13A-123



• MB991824: V.C.I.



AC608435 AB



CAUTION







° C to 95

° C (176° F to 203° F).









− How to



STEP 2. Check harness connector A-07 at mass airflow sensor for damage.






STEP 3. Check the continuity at mass airflow sensor harness side connector A-07.







AK704236 AB

TSB Revision









STEP 5. Check for open circuit between mass airflow sensor connector A-07 (terminal No. 4) and ECM connector











° C to 95 ° C (176° F to 203° F).









− How to








YES : Replace the mass airflow sensor. Then go to Step 8.




TSB Revision



13A-125



Diagnostic Function


P.13A-9 .





DTC P0106: Manifold Absolute Pressure Circuit Range/Performance Problem

B-18

(MU802723)

1 2 3

MANIFOLD ABSOLUTE PRESSURE SENSOR CIRCUIT

MANIFOLD ABSOLUTE

PRESSURE SENSOR

3 1 2

44

45

46

ENGINE

CONTROL

MODULE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

AK604115 AC

TSB Revision

13A-126

Connector: B-09



ECM

Connector: B-18


B-09 (GR)

B-18 (B)

AK704227 AB

.


• A 5-volt voltage is supplied to the manifold absolute pressure sensor power terminal (terminal No.

3) from the ECM (terminal No. 44). The ground terminal (terminal No. 2) is grounded with ECM

(terminal No. 46).

• A voltage that is proportional to the intake manifold pressure is sent to the ECM (terminal No. 45) from the manifold absolute pressure sensor output terminal (terminal No. 1).

.

.


• The manifold absolute pressure sensor outputs a voltage which corresponds to the intake manifold pressure.


AK704238 AB


Compare load value with manifold absolute pressure sensor output voltage.

.


Continuous

.

.




• Not applicable







TSB Revision




− high input>


13A-127

Start

No

No


Yes

Pressure > 89kPa (26.3in.Hg)

Yes


Yes

Malfunction

No

Good

End

AK604311


• 8 minutes or more have passed since the engine starting sequence was completed, when the engine coolant temperature at engine start is 0 ° C

(32

° F) or lower.

• Engine speed is 1,500 r/min or lower.

• Throttle position sensor output voltage is 0.8 volt or lower.

.


• Manifold absolute pressure sensor output voltage has continued to be 1.3 volts [corresponding to a manifold absolute pressure of 89 kPa (26.3 in.Hg)] or higher for 2 seconds.

TSB Revision




− low input>


Start

No

No


Yes

Pressure < 45kPa (13.3in.Hg)

Yes


Yes

Malfunction

No

Good

End

AK604312

.


• 8 minutes or more have passed since the engine starting sequence was completed, when the engine coolant temperature at engine start is 0 ° C

(32

° F) or lower.

• Engine speed is 1,500 r/min or higher.

• Throttle position sensor output voltage is 3.5 volts or higher.


• Manifold absolute pressure sensor output voltage has continued to be 0.7 volt [corresponding to a manifold absolute pressure of 46 kPa (13.6 in.Hg)] or lower for 2 seconds.


• None

.



Pattern 6

P.13A-9

.

.



• Harness damage.

• Connector damage.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824

MB991827



DIAGNOSIS

13A-129



• MB991824: V.C.I.




AC608435 AB



CAUTION


















− How to



TSB Revision

13A-130

B-18 harness connector: harness side

1 2 3


1 2 3



AK203034 AM

STEP 2. Measure the sensor output voltage at manifold absolute pressure sensor connector B-18 by backprobing.

(1) Do not disconnect the connector B-18.


(3) Measure the voltage between terminal No. 1 and ground by backprobing.

• When altitude is 0 m (0 foot), voltage should be between

1.2 and 1.8 volts.

• When altitude is 600 m (1,969 feet), voltage should be between 1.1 and 1.7 volts.

• When altitude is 1,200 m (3,937 feet), voltage should be between 1.0 and 1.6 volts.






STEP 3. Measure the sensor supply voltage at manifold absolute pressure sensor connector B-18 by backprobing.









AK203036 AM

STEP 4. Check harness connector B-18 at the manifold absolute pressure sensor and harness connector B-09 at

ECM for damage.


YES : Go to step 5.




STEP 5. Check for harness damage between manifold absolute pressure sensor connector B-18 (terminal No. 3) and ECM connector B-09 (terminal No. 44).




TSB Revision


1 2 3



13A-131

STEP 6. Measure the ground voltage at manifold absolute pressure sensor connector B-18 by backprobing.




• Voltage should be 0.5 volt or less.


Q: Is the measured voltage 0.5 volt or less?



AK203038 AM


ECM for damage.






STEP 8. Check for harness damage between manifold absolute pressure sensor connector B-18 (terminal No. 2) and ECM connector B-09 (terminal No. 46).




STEP 9. Check harness connector B-18 at manifold absolute pressure sensor for damage.


YES : Replace the manifold absolute pressure sensor. Then

go to Step 13.





ECM for damage.






TSB Revision

13A-132

Body side harness







MB992110

ECM

AK604040 AB


16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49



1.2 and 1.8 volts.







NO : Repair harness wire between manifold absolute pressure sensor connector B-18 (terminal No. 1) and

ECM connector B-09 (terminal No. 45) because of

harness damage. Then go to Step 13.

AK604177 AB

TSB Revision



13A-133

















Troubleshooting/Inspection Service Points − How to





P.42C-9





P.13A-9 .





TSB Revision



DTC P0107: Manifold Absolute Pressure Circuit Low Input

B-18

(MU802723)

1 2 3


MANIFOLD ABSOLUTE

PRESSURE SENSOR

3 1 2

.

Connector: B-09

B-09 (GR)

44

45

46

ENGINE

CONTROL

MODULE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

ECM

Connector: B-18


AK604115 AC

B-18 (B)

AK704227 AB

AK704238 AB

TSB Revision

.





3) from the ECM (terminal No. 44). The ground terminal (terminal No. 2) is grounded with ECM

(terminal No. 46).





.


Continuous

13A-135

.




• Not applicable







.

.


Manifold absolute pressure sensor output voltage is out of specified range.

TSB Revision

13A-136





Start

No

No


Yes

Pressure

< 5kPa (1.5in.Hg)

Yes

Yes

No

Pressure

> 117kPa (34.6in.Hg)

No


Yes

Malfunction

Good

End

AK604313


• 8 minutes or more have passed since the engine starting sequence was completed, when the engine coolant temperature at engine start is 0

° C

(32

° F) or lower.

• Volumetric efficiency is 20 percent or higher.


• Manifold absolute pressure sensor output voltage has continued to be 0.2 volt [corresponding to a manifold absolute pressure of 13 kPa (3.8 in.Hg)] or lower for 2 seconds.

.


• None

.




Pattern 6

P.13A-9

.

.



• Open or shorted manifold absolute pressure sensor circuit, harness damage or connector damage.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824

MB991827


1 2 3



DIAGNOSIS

13A-137



• MB991824: V.C.I.




AC608435 AB



CAUTION


















− How to



STEP 2. Measure the sensor supply voltage at manifold absolute pressure sensor connector B-18 by backprobing.









AK203036 AM

TSB Revision

13A-138

Body side harness













MB992110

ECM

AK604040 AB








16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AK604178 AB

STEP 5. Check harness connector B-18 at the manifold absolute pressure sensor for damage.






TSB Revision



13A-139

STEP 6. Check for short circuit to ground between manifold absolute pressure sensor connector B-18





STEP 7. Check harness connector B-18 at the manifold absolute pressure sensor for damage.


YES : Repair harness wire between manifold absolute pressure sensor connector B-18 (terminal No. 3) and

ECM connector B-09 (terminal No. 44) because of open circuit. Then go to Step 12.





ECM for damage.






TSB Revision

13A-140

Body side harness







MB992110

ECM

AK604040 AB


16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49



1.2 and 1.8 volts.








AK604177 AB

STEP 10. Check for open circuit and short circuit to ground between manifold absolute pressure sensor connector B-18 (terminal No. 1) and ECM connector B-09

(terminal No. 45).



go to Step 12.


TSB Revision



13A-141






















P.42C-9





P.13A-9 .





TSB Revision



DTC P0108: Manifold Absolute Pressure Circuit High Input

B-18

(MU802723)

1 2 3


MANIFOLD ABSOLUTE

PRESSURE SENSOR

3 1 2

.

Connector: B-09

B-09 (GR)

44

45

46

ENGINE

CONTROL

MODULE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

ECM

Connector: B-18


AK604115 AC

B-18 (B)

AK704227 AB

AK704238 AB

TSB Revision

.





3) from ECM (terminal No. 44). The ground terminal (terminal No. 2) is grounded with ECM (terminal No. 46).





.


Continuous

13A-143

.




• Not applicable







.

.


Manifold absolute pressure sensor output voltage is out of specified range.

TSB Revision

13A-144





Start

No

No


Yes

Pressure

< 5kPa (1.5in.Hg)

Yes

Yes

No

Pressure

> 117kPa (34.6in.Hg)

No


Yes

Malfunction

Good

End

AK604313

Check Condition

• 8 minutes or more have passed since the engine starting sequence was completed, when the engine coolant temperature at engine start is 0

° C

(32

° F) or lower.


• Manifold absolute pressure sensor output voltage has continued to be 4.6 volts [corresponding to a manifold absolute pressure of 314 kPa (93.0 in.Hg)] or higher for 2 seconds.

.


• None

.




Pattern 23

P.13A-9

.

.



• Open manifold absolute pressure sensor circuit, or connector damage.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824

MB991827


1 2 3



DIAGNOSIS

13A-145



• MB991824: V.C.I.



AC608435 AB



CAUTION


















− How to



STEP 2. Measure the ground voltage at manifold absolute pressure sensor connector B-18 by backprobing.




• Voltage should be 0.5 volt or less.


Q: Is the measured voltage 0.5 volt or less?



AK203038 AM

TSB Revision




ECM for damage.






STEP 4. Check for open circuit between manifold absolute pressure sensor connector B-18 (terminal No. 2) and ECM connector B-09 (terminal No. 46).





















− How to







ECM for damage.



go to Step 7.




TSB Revision



13A-147



Diagnostic Function


P.13A-9 .





DTC P0111: Intake Air Temperature Circuit Range/Performance Problem (sensor 1)


A-07

(MU805110)

1 2 3 4


SENSOR 1 (INTEGRATED IN

MASS AIRFLOW SENSOR)

4 1

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

.

Connector: A-07

Intake air temperature sensor 1 (integrated in mass airflow sensor)

A-07 (GR)

AK704234 AC

TSB Revision

88 89

5 V

Connector: B-10

ENGINE

CONTROL

MODULE

ECM

AK704241 AB

B-10 (GR)

AK704235 AB

.






88).






.

.

.


Intake air temperature sensor 1 output voltage does not change when specified go/stop operations are repeated.


Continuous

.




• Not applicable



TSB Revision





Start

13A-149


Yes

Intake air temp.

changes

No

No

Yes

No

Go/stop operation for specified times

Yes

Malfunction Good

End

AK604314

.



(169

° F).

• Repeat 2 or more times: drive

*1

, stop

*2

.

Drive

*1

: vehicle speed higher than 50 km/h (31 mph) lasting a total of 60 seconds or more.

Stop

*2

: vehicle speed lower than 1.5 km/h (1.0 mph) lasting 30 seconds or more.


• Changes in the intake air temperature is lower than 1 ° C (1.8° F).

.


• Control as if the intake air temperature is 25 ° C.

.




Pattern 7

P.13A-9

.

.




• ECM failed.

TSB Revision

13A-150

Data link connector



DIAGNOSIS



• MB991824: V.C.I.




Intake Air Temperature Sensor.

CAUTION



(2) Remove the mass airflow sensor from the air intake hose.



5, Intake Air Temperature Sensor.

MB991910

MB991824

MB991827


Mass airflow sensor

AC608435 AB

AK302200 AD

(5) Heating the sensor using a hair drier.

• The indicated temperature increases.

NOTE: Do not allow it to increase over 80

°

C (176

°

F).


(7) Attach the mass airflow sensor.







TSB Revision


1 2 3 4



13A-151



A-07.



4 3 2 1

AK704242 AB


AK604487AC

(3) Measure resistance while heating the sensor using a hair drier.

Standard value:

13

− 17 kΩ [at −20° C (−4° F)]

5.4

− 6.6 kΩ [at 0° C (32° F)]

2.3

− 3.0 kΩ [at 20° C (68° F)]

1.0

− 1.5 kΩ [at 40° C (104° F)]

0.56

− 0.76 kΩ [at 60° C (140° F)]

0.31

− 0.43 kΩ [at 80° C (176° F)]

Q: Is the measured resistance at the standard value?


NO : Replace the mass airflow sensor. Then go to Step 9.

STEP 3. Check harness connector A-07 at the intake air temperature sensor 1 for damage.






STEP 4. Check the continuity at intake air temperature sensor 1 harness side connector A-07.







AK704236 AB

TSB Revision









STEP 6. Check for harness damage between intake air temperature sensor 1 connector A-07 (terminal No. 4) and














STEP 8. Check for harness damage between intake air temperature sensor 1 connector A-07 (terminal No. 1) and











P.13A-9 .





TSB Revision



DTC P0112: Intake Air Temperature Circuit Low Input (sensor 1)

13A-153


A-07

(MU805110)

1 2 3 4




4 1

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

88 89

ENGINE

CONTROL

MODULE

5 V

Connector: A-07


Connector: B-10

ECM

AK704241 AB

B-10 (GR)

A-07 (GR)

AK704234 AC

.




88).


AK704235 AB


.

.




TSB Revision

.

.

13A-154


Continuous








• Not applicable


• Not applicable

.



Start

No


Yes

No


Yes

Yes

No


No


Yes

Malfunction Good

End

.

Check Condition


AK604315

.


• Intake air temperature sensor 1 output voltage has continued to be 0.2 volt or lower [corresponding to an intake air temperature of 115

° C (239° F) or higher] for 2 seconds.

TSB Revision



13A-155

.





Pattern 23

P.13A-9

.

.



• Shorted intake air temperature sensor 1 circuit, or connector damage.

• ECM failed.

DIAGNOSIS



• MB991824: V.C.I.



Data link connector

MB991910

MB991824



CAUTION






• The intake air temperature and temperature shown with the scan tool should approximately match.






− How to



MB991827

AC608435

AB







TSB Revision

13A-156


1 2 3 4





A-07.




Ω?



AK704242 AB

STEP 4. Check for short circuit to ground between intake air temperature sensor 1 connector A-07 (terminal No. 1) and ECM connector B-10 (terminal No. 89).















Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0113: Intake Air Temperature Circuit High Input (sensor 1)


A-07

(MU805110)

1 2 3 4




13A-157

4 1

B-10

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104 105 106

107 108 109 110 111 112 113 114 115 116 117 118

88 89

ENGINE

CONTROL

MODULE

5 V

Connector: A-07


Connector: B-10

ECM

AK704241 AB

B-10 (GR)

A-07 (GR)

AK704234

AC

AK704235 AB

.




88).



.




.



.

.


Continuous

TSB Revision






• Not applicable

.


• Not applicable



Start

No


Yes

No


Yes

Yes

No


No


Yes

Malfunction Good

End

AK604315

.

Check Condition



• Intake air temperature sensor 1 output voltage has continued to be 4.6 volts or higher [corresponding to an intake air temperature of −40° C

(

−40° F) or lower] for 2 seconds.

.



TSB Revision

.



Pattern 23

P.13A-9

.

.



• Open intake air temperature sensor 1 circuit, or connector damage.

• ECM failed.

Data link connector

MB991910

MB991824



DIAGNOSIS

13A-159



• MB991824: V.C.I.






CAUTION






• The intake air temperature and temperature shown with the scan tool should approximately match.






− How to



MB991827

AC608435 AB







TSB Revision

13A-160


1 2 3 4


4 3 2 1





A-07.




Ω?



AK704242 AB

STEP 4. Measure the sensor supply voltage at intake air temperature sensor 1 harness side connector A-07.









AK704245 AB







TSB Revision

Body side harness



13A-161





A-07.


MB992110

ECM

AK604171 AB






YES : Repair harness wire between intake air temperature sensor 1 connector A-07 (terminal No. 1) and ECM connector B-10 (terminal No. 89) because of open

circuit. Then go to Step 10.




P.42C-9


82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

106

118

105 104 103 102 101 100

99 98 97 96 95

117 116 115 114 113 112 111 110 109 108 107

AK604179 AB


4 3 2 1

AK704236 AB

STEP 7. Check the continuity at intake air temperature sensor 1 harness side connector A-07.








P.42C-9



TSB Revision









STEP 9. Check for open circuit between intake air temperature sensor 1 connector A-07 (terminal No. 4) and






P.42C-9





Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem

13A-163

ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT

B-08

(MU802406)

ENGINE COOLANT

TEMPERATURE SENSOR

2 1

.

Connector: B-08

B-08 (B)

27 26

ENGINE

CONTROL

MODULE

5 V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

Connector: B-09

B-09 (GR)


AK704246AB

AK603948 AD

ECM

AK704227 AB

TSB Revision

.

.

13A-164


• 5-volt voltage is applied to the engine coolant temperature sensor output terminal (terminal No.

1) from the ECM (terminal No. 26) via the resistor in the ECM. The ground terminal (terminal No. 2) is grounded with ECM (terminal No. 27).

• The engine coolant temperature sensor is a negative temperature coefficient type of resistor. It has the characteristic that when the engine coolant temperature rises the resistance decreases.

• The engine coolant temperature sensor output voltage increases when the resistance increases and decreases when the resistance decreases.




• The engine coolant temperature sensor converts the engine coolant temperature to a voltage and outputs it.


.

.


Engine coolant temperature sensor output voltage does not change for specified period when engine coolant temperature sensor output voltage at engine start is over 7

° C (45° F).


Once per driving cycle




• Not applicable




.

TSB Revision





Start

Start measuring the minimum and maximum temperature from engine start

13A-165

No


Yes

Calculate the difference of the minimum and the maximum temperature from engine start;dt

No

|dt| < 1˚C (1.8˚F)

Yes

300secs have passed?

No

Yes

Malfunction Good

End

AK703879

.

Check Condition

• Engine coolant temperature was 7° C (45° F) or more when the engine started.

Judgement Criteria

• Engine coolant temperature fluctuates within 1° C

(1.8

° F) after 5 minutes have passed since the engine was started.

• However, time is not counted if any of the following conditions are met.

1. Intake air temperature is 60 ° C (140° F) or more.

.

2. Mass airflow sensor outputs is 10 g/sec or less.

3. During fuel shut-off operation.

.


• Control as if the engine coolant temperature is 80

° C.

.




Pattern 8

P.13A-9

.

TSB Revision




• Engine coolant temperature sensor failed.


• ECM failed.

DIAGNOSIS



• MB991824: V.C.I.



Data link connector

MB991910

MB991824


Engine Coolant Temperature Sensor.

CAUTION





6, Engine Coolant Temperature Sensor.

• The engine coolant temperature and temperature shown with the scan tool should approximately match.






− How to



MB991827

AC608435 AB

STEP 2. Check the engine coolant temperature sensor.

Refer to Engine Coolant Temperature Sensor Check

P.13A-907 .

Q: Is the engine coolant temperature sensor normal?


NO : Replace the engine coolant temperature sensor. Then

go to Step 9.

STEP 3. Check harness connector B-08 at the engine coolant temperature sensor for damage.






TSB Revision


2 1



13A-167

STEP 4. Check the continuity at engine coolant temperature sensor harness side connector B-08.







AK604180 AD







STEP 6. Check for harness damage between engine coolant temperature sensor connector B-08 (terminal No.














TSB Revision













Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0117: Engine Coolant Temperature Circuit Low Input


B-08

(MU802406)

ENGINE COOLANT

TEMPERATURE SENSOR

2 1

13A-169

.

Connector: B-08

B-08 (B)

27 26

ENGINE

CONTROL

MODULE

5 V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

Connector: B-09

B-09 (GR)


AK704246AB

AK603948 AD

ECM

AK704227 AB

TSB Revision

.











.

.

.


Engine coolant temperature sensor output voltage is out of specified range.


Continuous

.




• Not applicable


• Not applicable

TSB Revision





13A-171

Start

No


Yes


Yes

No

No

Yes


No


Yes

Malfunction

Good

End

AK604317

.

Check Condition



• Engine coolant temperature sensor output voltage has continued to be 0.1 volt or lower for 2 seconds.

.



° C.

.




Pattern 23

P.13A-9

.

.



• Shorted engine coolant temperature sensor circuit, or connector damage.

• ECM failed.

TSB Revision

13A-172

Data link connector

MB991910

MB991824



DIAGNOSIS



• MB991824: V.C.I.





CAUTION












− How to



MB991827

AC608435 AB







STEP 3. Check for short circuit to ground between engine coolant temperature sensor connector B-08 (terminal No.











TSB Revision



13A-173



P.13A-907 .







go to Step 6.



Diagnostic Function


P.13A-9 .





TSB Revision



DTC P0118: Engine Coolant Temperature Circuit High Input


B-08

(MU802406)

ENGINE COOLANT

TEMPERATURE SENSOR

2 1

.

Connector: B-08

B-08 (B)

27 26

ENGINE

CONTROL

MODULE

5 V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

Connector: B-09

B-09 (GR)


AK704246AB

AK603948 AD

ECM

AK704227 AB

TSB Revision

.











.

.

.

13A-175


Engine coolant temperature sensor output voltage is out of specified range.


Continuous

.




• Not applicable


• Not applicable

TSB Revision

13A-176





Start

No


Yes


Yes

No

No

Yes


No


Yes

Malfunction

Good

End

AK604317

.

Check Condition



• Engine coolant temperature sensor output voltage has continued to be 4.6 volts or higher for 2 seconds.

.



° C.

.



−OBD-II Drive

Cycle

−Pattern 23 P.13A-9 .

.



• Open engine coolant temperature sensor circuit, or connector damage.

• ECM failed.

TSB Revision

Data link connector

MB991910

MB991824



DIAGNOSIS

13A-177



• MB991824: V.C.I.






CAUTION












− How to



MB991827

AC608435 AB







TSB Revision

13A-178


2 1



STEP 3. Measure the sensor supply voltage at engine coolant temperature sensor harness side connector B-08.









AK604181 AD







TSB Revision

Body side harness

MB992110




13A-179




(2) Disconnect the engine coolant temperature sensor connector B-08.


ECM

AK604040 AB





YES : Repair harness wire between engine coolant temperature sensor connector B-08 (terminal No. 1) and ECM connector B-09 (terminal No. 26) because

of open circuit. Then go to Step 10.




P.42C-9


16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49


2 1

AK604182 AB

AK604180 AD

TSB Revision
















STEP 8. Check for open circuit between engine coolant sensor connector B-08 (terminal No. 2) and ECM connector






P.42C-9

. Then go to Step10.




P.13A-907 .





P.42C-9



go to Step 10.




P.13A-9 .





TSB Revision



DTC P0122: Throttle Position Sensor (main) Circuit Low Input

THROTTLE POSITION SENSOR (MAIN) CIRCUIT

B-11

(MU805200)

1 2 3 4 5 6

HALL IC

THROTTLE POSITION

SENSOR (MAIN)

5 4 3

13A-181

Connector: B-09

12 10 13

ENGINE

CONTROL

MODULE

5 V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

ECM

Connector: B-11

AK603950 AD

B-09 (GR)

AK704227 AB

.


• A 5-volt power supply is applied on the throttle position sensor (main) power terminal (terminal

No. 5) from the ECM (terminal No. 12).

TSB Revision

B-11 (B)

Throttle body assembly

(incorporating throttle position sensor)

Radiator cap

AK704247AB

• A voltage that is according to the throttle opening angle is sent to the ECM (terminal No. 10) from the throttle position sensor (main) output terminal

(terminal No. 4).

.



• The ground terminal (terminal No. 3) is grounded with ECM (terminal No. 13).

.


Continuous

.


• The throttle position sensor (main) outputs voltage which corresponds to the throttle valve opening angle.

• The ECM checks whether the voltage is within a specified range.

.


Throttle position sensor (main) output voltage is out of specified range.

.




• Not applicable


• Not applicable

.



Start

No

Output voltage <= 0.2V

Yes

No

Yes

Output voltage >= 4.8V

No

Continuous failure for 0.3sec

Yes

Malfunction Good

End

AK604318

TSB Revision

.



Check Condition



• Throttle position sensor (main) output voltage should be 0.2 volt or less for 0.3 second.



• Throttle opening degree position is in default position if throttle position sensor (sub) fails.

.


None.

13A-183

.


• Throttle position sensor failed.

• Shorted throttle position sensor (main) circuit, harness damage, or connector damage.

• ECM failed.

Data link connector

MB991910

MB991824

MB991827

AC608435 AB

DIAGNOSIS



• MB991824: V.C.I.





Throttle Position Sensor (main).

CAUTION




(3) Detach the intake air hose at the throttle body.

(4) Disconnect the connector of the throttle position sensor.

(5) Use test harness special tool (MB991658) to connect only terminals No. 3, No. 4, No. 5, and No. 6.


13, Throttle Position Sensor (main).

• Output voltage should be between 0.3 and 0.7 volt when the throttle valve is fully closed with your finger.

• Output voltage should be 4.0 volts or more when the throttle valve is fully open with your finger.






− How to



STEP 2. Check harness connector B-11 at throttle position sensor and harness connector B-09 at ECM for damage.






TSB Revision



STEP 3. Check for harness damage between throttle position sensor connector B-11 (terminal No. 5) and ECM connector B-09 (terminal No. 12).




STEP 4. Check for short circuit to ground and harness damage between throttle position sensor connector B-11




















− How to



STEP 6. Replace the throttle body assembly.

(1) Replace the throttle body assembly.


(3) After the DTC has been deleted, read the DTC again.



YES : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, Diagnosis

− ID Code Registration Judgment Table <Vehicles with

KOS> P.42B-12 or GROUP 42C, Diagnosis

− ID

Codes Registration Judgment Table <Vehicles with

WCM> P.42C-9



TSB Revision



13A-185








DTC P0123: Throttle Position Sensor (main) Circuit High Input

THROTTLE POSITION SENSOR (MAIN) CIRCUIT

B-11

(MU805200)

1 2 3 4 5 6

HALL IC

THROTTLE POSITION

SENSOR (MAIN)

5 4 3

12 10 13

5 V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

ENGINE

CONTROL

MODULE

AK603950 AD

TSB Revision

13A-186

Connector: B-09



ECM

Connector: B-11

B-09 (GR)

B-11 (B)

Throttle body assembly

(incorporating throttle position sensor)

AK704227 AB

Radiator cap

AK704247AB

.


• A 5-volt power supply is applied on the throttle position sensor (main) power terminal (terminal

No. 5) from the ECM (terminal No. 12).

• A voltage that is according to the throttle opening angle is sent to the ECM (terminal No. 10) from the throttle position sensor (main) output terminal

(terminal No. 4)

• The ground terminal (terminal No. 3) is grounded with ECM (terminal No. 13).

.


• The throttle position sensor (main) outputs voltage which corresponds to the throttle valve opening angle.

• The ECM checks whether the voltage is within a specified range.

.


Throttle position sensor (main) output voltage is out of specified range.

.


Continuous

.

.




• Not applicable


• Not applicable

TSB Revision





Start

13A-187

No

Output voltage <= 0.2V

Yes

No

Yes

Output voltage >= 4.8V

No

Continuous failure for 0.3sec

Yes

Malfunction Good

End

.

Check Condition



• Throttle position sensor (main) output voltage should be 4.8 volts or more for 0.3 second.

.



• Throttle opening degree position is in default position if throttle position sensor (sub) fails.

AK604318

.


None.

.


• Throttle position sensor failed.

• Open or shorted throttle position sensor (main) circuit, harness damage, or connector damage.

• ECM failed.

TSB Revision

13A-188

Data link connector

MB991910

MB991824

MB991827



DIAGNOSIS



• MB991824: V.C.I.




AC608435 AB



CAUTION


















STEP 2. Check harness connector B-11 at throttle position sensor for damage.






TSB Revision


6 5 4 3 2 1


6 5 4 3 2 1



13A-189

STEP 3. Measure the sensor supply voltage at throttle position sensor harness side connector B-11.









AK203049 AG







STEP 5. Check for open circuit and short circuit to ground between throttle position sensor connector B-11 (terminal

No. 5) and ECM connector B-09 (terminal No. 12).




STEP 6. Check the continuity at throttle position sensor harness side connector B-11.


(2) Measure the continuity between terminal No. 3 and ground





AK203051 AH







TSB Revision



STEP 8. Check for open circuit and harness damage between throttle position sensor connector B-11 (terminal

No. 3) and ECM connector B-09 (terminal No. 13).



















− How to


NO : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, Diagnosis



− ID


WCM> P.42C-9








STEP 11. Check for harness damage between throttle position sensor connector B-11 (terminal No. 5) and ECM connector B-09 (terminal No. 12).




TSB Revision



13A-191

STEP 12. Check for open circuit, short circuit to ground and harness damage between throttle position sensor connector B-11 (terminal No. 4) and ECM connector B-09

(terminal No. 10).




STEP 13. Replace the throttle body assembly.

(1) Replace the throttle body assembly.





YES : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, Diagnosis



− ID


WCM> P.42C-9










TSB Revision



DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control


B-08

(MU802406)

ENGINE COOLANT

TEMPERATURE SENSOR

2 1

.

Connector: B-08

B-08 (B)

27 26

ENGINE

CONTROL

MODULE

5 V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

B-09

Connector: B-09

B-09 (GR)


AK704246AB

AK603948 AD

ECM

AK704227 AB

TSB Revision

.








.

13A-193


• Engine coolant temperature sensor output voltage drops from over 40

° C (104° F) to under 40° C

(104

° F) and keeps under 40° C (104° F) for 5 minutes.

• Engine coolant temperature sensor output voltage does not reach close loop enable temperature within specified period when engine coolant temperature sensor output voltage at engine start is under 7

° C (45° F).


Continuous

.




.




• Not applicable




.

TSB Revision




− drift>


Start

No

No

No

Over 40˚C (104˚F)

Yes

Under 40˚C (104˚F)

Yes

Over 40˚C (104˚F)

No

300secs have passed?

Yes

Malfunction

Yes

Good

End

.

Check Conditions, Judgement Criteria

• Engine coolant temperature decreases from higher than 40 ° C (104° F) to lower than 40° C

(104

° F).

.

AK704248

• Then the engine coolant temperature has continued to be 40

° C (104° F) or lower for 5 minutes.

TSB Revision



13A-195


− low input (Time to reach

closed loop temperature)>


Start


Yes

No

Engine coolant temp.

>

Closed loop enable temp.

No

Yes

No

Specified time has passed after engine start?

Yes

Malfunction

End

Good

Check Conditions, Judgement Criteria

• About 90 − 300 seconds have passed for the engine coolant temperature to rise to about 7 ° C

(45

° F) after starting sequence was completed.

• However, time is not counted when fuel is shut off.

.



° C.

AK604320

.



Pattern 8

P.13A-9

.



• Harness damage in engine coolant temperature sensor circuit or connector damage.

• ECM failed.

TSB Revision

13A-196

Data link connector

MB991910

MB991824



DIAGNOSIS



• MB991824: V.C.I.





CAUTION












− How to



MB991827

AC608435 AB

TSB Revision


1 2



AK201572 AH

13A-197

STEP 2. Measure the sensor output voltage at engine coolant temperature sensor connector B-08 by backprobing.




• When engine coolant temperature is −20° C (−4° F), voltage should be between 3.9 and 4.5 volts.

• When engine coolant temperature is 0° C (32° F), voltage should be between 3.2 and 3.8 volts.




• When engine coolant temperature is 80° C (176° F), voltage should be between 0.3 and 0.9 volt.


Q: Is the measured voltage within the specified range?




















− How to





P.42C-9


TSB Revision

13A-198


2 1


2 1



STEP 5. Check harness connector B-08 at engine coolant temperature sensor for damage.






STEP 6. Measure the sensor supply voltage at engine coolant temperature sensor harness side connector B-08.









AK604181 AD






P.42C-9












AK604180 AD

TSB Revision



13A-199













P.42C-9





P.13A-907 .




go to Step 14.













P.42C-9



TSB Revision





Diagnostic Function


P.13A-9 .





.

.

.

DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)


• The ECM checks the time for the cooling water temperature to reach the judgement temperature.


Engine coolant temperature does not reach 77

° C

(171

° F) within specified period after cold start.

.


Once per driving cycle

.




• Not applicable





TSB Revision





Start


Yes

No

Engine coolant temp.

>= 77˚C (171˚F)

No

No

Specified time has passed after engine start?

Yes

Malfunction

Yes

Good

13A-201

End

.


• Engine coolant temperature is between −10° C

(14

° F) and 60° C (140° F) when the engine is started.

• Intake air temperature is −10° C (14° F) or higher when the engine is started.

• The intake air temperature when the engine is started

− intake air temperature is 5° C (9° F) or less.

• The total time of the mass airflow sensor output whose state is below 14 g/sec within 550 seconds.

Judgement Criteria

• The time for the engine coolant temperature to rise to 77

° C (171° F) takes longer than approximately 9.5 to 43.5 minutes.

TSB Revision

AK604325

.


• None

.




Pattern 9

P.13A-9

.

.


• The engine cooling system is faulty.

• ECM failed.



DIAGNOSIS

STEP 1. Check the cooling system.

Refer to GROUP 14, Engine Cooling Diagnosis P.14-3 .

Q: Is the cooling system normal?








Diagnostic Function


P.13A-9 .





TSB Revision

Multiport Fuel Injection System Service manual

Assistant Bot

GROUP 13A

MULTIPORT FUEL

INJECTION (MFI)

CONTENTS

GENERAL INFORMATION

GENERAL SPECIFICATIONS

SERVICE SPECIFICATIONS

SEALANT AND ADHESIVE

SPECIAL TOOL

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

DIAGNOSTIC TROUBLE CODE PROCEDURES

− high>

− low >

− high input>

− low input>

− drift>

− low input (Time to reach

Key Features

Frequently Answers and Questions

What is the primary function of the Multiport Fuel Injection System?

How does the MFI system control the idle speed of the engine?

What is the role of the sensors in the MFI system?

What diagnostic capabilities does the MFI system provide?

How does the MFI system regulate fuel pressure?

Related manuals

Multiport Fuel Injection System Service manual

Assistant Bot

GROUP 13A

MULTIPORT FUEL

INJECTION (MFI)

CONTENTS

GENERAL INFORMATION

GENERAL SPECIFICATIONS

SERVICE SPECIFICATIONS

SEALANT AND ADHESIVE

SPECIAL TOOL

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

DIAGNOSTIC TROUBLE CODE PROCEDURES

− high>

− low >

− high input>

− low input>

− drift>

− low input (Time to reach

Key Features

Frequently Answers and Questions

What is the primary function of the Multiport Fuel Injection System?

How does the MFI system control the idle speed of the engine?

What is the role of the sensors in the MFI system?

What diagnostic capabilities does the MFI system provide?

How does the MFI system regulate fuel pressure?

Related manuals

Mitsubishi

MFI

Mitsubishi

MFI

Mitsubishi

Lancer

Mitsubishi

LANCER EVOLUTION-IX RS, GSR

Mitsubishi

Eclipse

Mitsubishi

1995 3000GT Spyder

Mitsubishi

Galant

Mitsubishi

Lancer Evolution CZ4AS

Mitsubishi

Lancer X 4B11 (2.0 L)