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?