Operation CHARM: Car repair manuals for everyone.

Front A/C Control Unit Check

Front A/C Control Unit Check:




Front A/C Control Unit Check:





Check power supply circuit for front A/C control unit with ignition switch ON.

1. Disconnect front A/C control unit harness connector.
2. Connect voltmeter from harness side.
3. Measure voltage across terminal No. (1), (28) and body ground.

Front A/C Control Unit Check:




Front A/C Control Unit Check:





Check body ground circuit for front A/C control unit with ignition switch OFF.

1. Disconnect front A/C control unit harness connector.
2. Connect ohmmeter from harness side.
3. Check for continuity between terminal No. (8), (30) and body ground.