A/C Signal: Testing and Inspection

TROUBLESHOOTING HINTS:
If the air conditioning compressor's magnetic clutch is not activated when the air conditioning switch is switched on during idling, the cause is probably a malfunction of the air conditioning control system.

INSPECTION:
Using Scan Tool













HARNESS INSPECTION:





STEP 1. Measure the power supply voltage of the air conditioning circuit.
Engine control module connector: Disconnect
- Ignition switch: ON
- Air conditioning switch: ON
Voltage (V): 6 or higher
OK: STOP
NG: Check the air conditioning circuit.

AIR CONDITIONING SWITCH CHECK:
Refer to Heating and Air Conditioning/Control Assembly.

AIR CONDITIONING COMPRESSOR CLUTCH RELAY CHECK:
Refer to Heating and Air Conditioning/Compressor Clutch Relay