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7B-27 Air Conditioning System: A/C System Symptom Diagnosis S5JB0A7204001 Condition Possible cause Correction / Reference Item No cool air comes out (A/ No refrigerant Perform recovery, evacuation and charge Fuse blown Check related fuses, and then check for short Evaporator temperature sensor faulty Check evaporator temperature sensor A/C refrigerant pressure sensor faulty Check A/C refrigerant pressure sensor Wiring or grounding faulty Repair as necessary. ECT sensor faulty Check ECT sensor referring to “Engine ECM faulty Check ECM referring to “A/C System HVAC control module faulty Check HVAC control module referring to Magnet clutch faulty Check magnet clutch referring to “Magnet Compressor drive belt loosened or Adjust or replace drive belt. Compressor faulty Check compressor. Compressor relay faulty Check compressor relay referring to “A/C Temperature selector, blower speed Check HVAC control module referring to BCM faulty Check BCM referring to “Inspection of BCM No cool air comes out Fuse blown Check related fuses, and then check for short Wiring or grounding faulty Repair as necessary. Radiator cooling fan motor relay faulty Check radiator cooling fan motor relay Radiator cooling fan motor faulty Check radiator cooling fan motor referring to ECM faulty Check ECM referring to “A/C System HVAC control module faulty Check HVAC control module referring to |