Checking A/C Switch
WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
Turn fan control dial to AUTO position. (Compressor is turned ON automatically.)
- Confirm that the compressor clutch engages (sound or visual inspection). (Discharge air and blower speed will depend on ambient, in-vehicle, and set temperatures.)
If NG, go to trouble diagnosis procedure for "POWER SUPPLY AND GROUND CIRCUIT FOR AUTO AMP. ", then if necessary, trouble diagnosis procedure for "MAGNET CLUTCH CIRCUIT ".
If all operational checks are OK (symptom cannot be duplicated), go to Incident Simulation Tests in "HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT " and perform tests as outlined to simulate driving conditions environment. "SYMPTOM TABLE " and perform applicable trouble diagnosis procedures.