Galant VR4 AWD L4-1997cc 2.0L DOHC Turbo (1992)
Compressor Clutch Relay: Testing and Inspection
Air Conditioning Circuit
To test the Air Conditioning Relay, located in the engine compartment, proceed as follows:
COMPONENT TEST
1. Remove the A/C relay.
2. Using an ohm meter, check for continuity between terminals 2 and 4.
Continuity: ............................................................................................................................................................................................ Should exist
3. Apply 12vdc across terminals 2 and 4 of the relay.
4. Using an ohm meter check for continuity between terminals 1 and 3.
Continuity: ............................................................................................................................................................................................ Should exist
HARNESS TEST
1. Using a volt meter, check for voltage between harness terminal 3 of the A/C relay and ground.
Voltage: ............................................................................................................................................................................................. System voltage
2. Turn the key, A/C and blower switches to the ON position and check for voltage at harness terminal 4 of the A/C relay.
Voltage: ............................................................................................................................................................................................. System voltage
3. Turn the key to the OFF position and disconnect the ECU connectors.
4. Using an ohm meter check for continuity between ECU harness terminal 65 and relay harness terminal 2.
Continuity: ............................................................................................................................................................................................ Should exist
