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Q.
Is the check result normal?
Go to Step 2 .
Repair or replace the connector.
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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 assembly. 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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- Disconnect connector, and measurement at harness side.
- Ignition switch: ON
- Voltage between terminal No. 1 and earth.
OK: System voltage
Q.
Is the check result normal?
Go to Step 5 .
Go to Step 4 .
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Q.
Is the check result normal?
Check and repair harness between C-105 (terminal No.
17) engine-ECU connector and A-47 (terminal No. 1) suction control valve connector.
- Check power supply line for short circuit.
Repair or replace the connector.
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Q.
Is the check result normal?
Go to Step 6 .
Repair or replace the connector.
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Q.
Is the check result normal?
Go to Step 7 .
Repair the damaged harness wire.
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- Reconfirmation of diagnosis code.
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Q.
Is the diagnosis code set?
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Replace the engine-ECU. When the engine-ECU is replaced, write the chassis number
(Refer to GROUP 00 - 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 Malfunctions ).
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