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- Ignition switch: ON
- Engine coolant temperature: 40°C or lower
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Q.
Is the glow indicator lamp illuminates?
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Q.
Are the check results normal?
Go to Step 3 .
Repair or replace.
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- Disconnect connector, and measurement at harness side.
- Ignition switch: ON
- Voltage between terminal No. 28 and earth.
OK: System voltage
Q.
Is the check result normal?
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 ).
Check intermediate connector C-53 <L.H. drive vehicles> or C-35 <R.H.
drive vehicles>, and repair if necessary. If intermediate connector is normal, check and repair
harness between C-111 (terminal No. 51) combination meter connector and C-105 (terminal No. 28)
engine-ECU connector.
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Q.
Are the check results normal?
Go to Step 5 .
Repair or replace.
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- Check the glow plug relay itself (Refer to GROUP 16 - Glow System - On-vehicle
Service - Glow Plug Relay Check ).
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Q.
Is the check result normal?
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Replace the glow plug relay.
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- Disconnect connector, and measurement at harness side.
- Voltage between terminal No. 1 and earth.
OK: System voltage
Q.
Is the check result normal?
Go to Step 7 .
Check harness between fusible link No. 24 and A-11 (terminal No. 1) glow plug
relay connector.
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- Disconnect connector, and measurement at harness side.
- Voltage between terminal No. 1 and earth.
OK: System voltage
Q.
Is the check result normal?
Go to Step 8 .
Check harness between A-112 (terminal No. 1) glow plug relay connector and A-20X
(terminal No. 3) engine control relay connector.
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- Check glow plug itself (Refer to GROUP 16 - Glow System - On-vehicle
Service - Glow Plug Check ).
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Q.
Is the check result normal?
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Q.
Is the check result normal?
Go to Step 10 .
Repair the harness wire.
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Q.
Is the check result normal?
Go to Step 11 .
Repair or replace.
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Q.
Is the check result normal?
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 ).
Repair the harness wire.
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