P0645

Test 1 - 2:

Test 3 - 6:

SYMPTOM
P0645-A/C CLUTCH RELAY CIRCUIT

WHEN MONITORED
With the ignition key in the run position and battery voltage above 10.4 volts.

SET CONDITION
An open or shorted condition is detected in the A/C clutch relay control circuit.

POSSIBLE CAUSES
- A/C Clutch relay operation
- A/C Clutch relay
- Internal fused ignition switch output circuit
- (C13) A/C Clutch relay control circuit open
- (C13) A/C Clutch relay control circuit shorted to ground
- PCM