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Q.
Is diagnosis code set?
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Inspection chart for diagnosis code (Refer to ).
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- Data list reference table (Refer to ).
- Item 5: Intake air temperature sensor
- Item 6: Engine coolant temperature sensor
- Item 8: Manifold absolute pressure sensor
- Item 10: Air flow sensor
- Item 11: Accelerator pedal position sensor (main)
- Item 12: Accelerator pedal position sensor (sub)
- Item 13: Throttle position sensor (main)
- Item 15: Throttle position sensor (sub)
- Item 36: V.V.T.phase angle (inlet)
- Item BB: Barometric pressure sensor
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Q.
Are the check results normal?
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Perform the diagnosis code classified check procedure for the sensor that has shown an abnormal data value. Inspection chart for diagnosis code (Refer to ).
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- Data list reference table (Refer to ).
- Item 87: Neutral switch
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Q.
Is the check result normal?
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Carry out checks relating to the system.
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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Throttle body (throttle valve area) cleaning (Refer to ).
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- Data list reference table (Refer to ).
- Item AC: Oxygen sensor (front)
- Item AD: Oxygen sensor (rear)
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Q.
Are the check results normal?
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Perform the diagnosis code classified check procedure for the sensor that has shown an abnormal data value. Inspection chart for diagnosis code (Refer to ).
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- Disconnect engine-ECU connector, and connect special tool power plant ECU check harness (MB992110) to measure at connector for inspection.
- Engine: Idle operation after warm-up
- Transmission: P range
- Radiator fan: Not operated
- Voltage between terminal ALTG and body earth.
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OK: The voltage increases when the headlamp switch and the rear window defogger switch are turned ON from OFF.
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Q.
Is the check result normal?
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- Check output line for open/short circuit and damage.
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Q.
Is the check result normal?
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Repair or replace the connector, or repair the damaged harness wire.
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Q.
Does the trouble symptom persist?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
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- Remove the spark plug and install it to the ignition coil.
- Connect the ignition coil connector.
- Disconnect all injector connectors.
- At the engine start, check each spark plug produces a spark.
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Q.
Is the check result normal?
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Check Inspection Procedure - ignition circuit system (Refer to ).
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- Check purge control solenoid valve itself (Refer to GROUP 17 - Emission Control - Evaporative Emission Control System - Purge Control Solenoid Valve Check ).
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Q.
Is the check result normal?
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Replace the purge control solenoid valve.
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- Injector check (Refer to ).
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Q.
Is the check result normal?
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- Check the compression pressure (Refer to GROUP 11A - On-vehicle Service - Compression Pressure Check ).
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Q.
Is the check result normal?
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- After replacing the engine-ECU re-check the trouble symptoms.
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Q.
Does the trouble symptom persist?
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Check for foreign matters (water, diesel fuel, etc.) in fuel and replace if necessary.
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