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DTC Troubleshooting

DTC TROUBLESHOOTING PROCEDURES

Step Action YES NO
1 Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2 A/C refrigerant pressure sensor and its circuit check 
  1. Check A/C refrigerant pressure sensor and its circuit for condition referring to A/C REFRIGERANT PRESSURE SENSOR AND ITS CIRCUIT INSPECTION: MANUAL TYPE .

    Is it in good condition? 

 Substitute a known-good ECM and recheck. Repair or replace defective parts.
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