P0645

Test 1 - 2:

Test 3 - 7:

Test 8 - 9:

SYMPTOM
P0645-A/C CLUTCH RELAY CIRCUIT

WHEN MONITORED
With the ignition on. Battery voltage greater than 10 volts. A/C Switch on.

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

POSSIBLE CAUSES
- A/C clutch relay intermittent operation
- Intermittent condition
- Fused ignition switch output circuit open
- Integrated power module
- A/C clutch relay
- IPM fuse & relay center
- A/C clutch relay control CKT open
- A/C clutch relay control circuit short to ground
- PCM