Compressor Clutch Relay: Testing and Inspection

A/C Relay Inspection





1. Disconnect the A/C relay from the cooling unit.
2. Check for continuity between terminals 1 and 3 of the relay with an ohmmeter.





3. Apply 12V to terminal 4 and ground terminal 2.
4. Check for continuity between terminals 3 and 4 with an ohmmeter.