A/C Cut-off Control System Inspection
- Start the engine.
- Turn the A/C switch and fan switch on.
- Verify that the A/C compressor magnetic clutch actuates.
- Fully open the throttle valve and verify that the A/C compressor magnetic clutch does not actuate for 2-5 s
.
- If it actuates, inspect as follows:
- APP1 and APP2 PIDs (See PCM INSPECTION
.)
- A/C relay (See RELAY INSPECTION
.)
- Open circuit or short to ground in wiring harness and connectors (Ignition switch-A/C relay-PCM terminal 1AN)
- A/C related parts