Operation CHARM: Car repair manuals for everyone.

Component Inspection





Component Inspection

Check Ambient sensor
1. Ignition "OFF".
2. Disconnect ambient sensor.
3. Measure resistance between terminal "1" and "2" of ambient sensor.

Specification : Refer the specifications in fig 3)








4. Is the measured resistance within specifications in fig 3) ? (tolerance limits ± 3%)





Check A/C Control Unit
1. Engine : "ON".
2. Disconnect ambient sensor.
3. Measure voltage between terminal "3" of A/C Control Unit and chassis ground.

Specification : Approx. 5V




4. Is the measured voltage within specifications ?