FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Component Inspection





P0646 A/C Clutch Relay Control Circuit Low

Inspection/Repair - Component Inspection

Component Inspection

Check A/C relay
1. IG "OFF" and disconnect A/C relay.
2. Measure resistance between battery power supply and power supply to A/C Compressor terminals of A/C relay. (Measurement "A")
3. Measure resistance between battery power supply and A/C relay control terminals of A/C relay. (Measurement "B")
Specification :









4. Is the measured resistance within specification?