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- Refer to Data List Reference Table .
- Item 25: A/C switch
- Item 26: A/C load signal <Automatic A/C>
- Item 27: A/C relay
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Q.
Is the check result normal?
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Check A/C system (Refer to GROUP 55A - Troubleshooting - Trouble
Symptom Chart <manual A/C>, GROUP 55B - Troubleshooting - Trouble
Symptom Chart <automatic A/C>).
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Q.
Is the check result normal?
Go to Step 3 .
Repair or replace.
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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 - 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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