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- Measure battery voltage at cranking.
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Q.
Is the check result normal?
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Check battery (Refer to GROUP 54A - Battery - On-vehicle Service - Battery test ).
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Q.
Is the diagnosis code set?
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Inspection chart for diagnosis code (Refer to ).
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- Check injector identification code (Refer to GROUP 00 - Precautions Before Service - Injector Identification code Registration Procedure ).
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Q.
Is the check result normal?
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Register the injector ID.
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OK:
ON (Ignition switch: ST) OFF (Ignition switch: ON)
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Q.
Is the check result normal?
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Check for starting impossible to operate (Refer to Inspection Procedure 4 <M/T>, <A/T>).
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Q.
Is the check result normal?
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Replace the timing chain.
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Q.
Is the specified fuel being used?
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- Check glow system (Refer to Inspection Procedure 27 ).
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Q.
Is the check result normal?
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Repair or replace the failed item.
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- Check for fuel leakage and clogging
- Check fuel filter for clogging
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Q.
Is the check result normal?
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Repair or replace the failed item.
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Q.
Does trouble symptom persist?
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The procedure is complete.
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- Refer to Actuator Test Reference Table .
- Item 19: Suction control valve.
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Q.
Is the check result normal?
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Replace the supply pump. After replacing the supply pump, learn the supply pump (Refer to GROUP 00 - Precautions Before Service - What The Common Rail Engine Learns ).
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- Check suction control valve itself (Refer to ).
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Q.
Is the check result normal?
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Replace the supply pump. After replacing the supply pump, learn the supply pump (Refer to GROUP 00 - Precautions Before Service - What The Common Rail Engine Learns ).
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- Refer to Data List Reference Table .
- Item 63: Rail pressure sensor
- Item 64: Rail pressure target
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Q.
Are the check results normal?
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- Replace the common-rail assembly.
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Q.
Does trouble symptom persist?
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The procedure is complete.
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- Check the waveforms during cranking.
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Q.
Are waveforms being output?
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Proceed to the diagnostic code procedure for the sensor that does not output waveforms (Refer to Inspection Chart for Diagnosis Code ).
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- Check compression pressure (Refer to GROUP 11G - On-vehicle Service - Compression Pressure Check ).
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Q.
Is the check result normal?
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Check and repair the engine itself.
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- Check injector itself (Refer to ).
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Q.
Is the check result normal?
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Replace the injector at the failed cylinder. After replacing the Injector, register the injector identification code and learn fuel injection (Refer to GROUP 00 - Precautions Before Service - What The Common Rail Engine Learns ).
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- Refer to Data List Reference Table .
- Item 05: Barometric pressure sensor
- Item 07: Engine coolant temperature sensor
- Item 08: No. 2 intake air temperature sensor
- Item 21: Fuel temperature sensor
- Item 43: No. 1 intake air temperature 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 (Refer to Inspection Chart for Diagnosis Code ).
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Q.
Does trouble symptom persist?
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Replace the engine-ECU. When the engine-ECU is replaced, write the chassis number (Refer to GROUP 00 - Precautions Before Service - How to Perform Chassis Number Writing ). After replacing the engine-ECU, register the injector identification code and learn fuel injection (Refer to GROUP 00 - Precautions Before Service - What The Common Rail Engine Learns ).
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
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