P0645

Test 1 - 2:

Test 3 - 6:

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 Operation
- (A17) Fused Ignition Switch Output Circuit
- A/C Clutch Relay Resistance
- (C28) A/C Clutch Relay Control Circuit Open
- (C28) A/C Clutch Relay Control Circuit Short To Ground
- PCM