Component Tests and General Diagnostics
A/C Cut-off Control System Inspection1. Start the engine.
2. Turn the A/C switch and the fan switch on.
3. Verify that the A/C compressor magnetic clutch actuates.
- If it does not actuate, go to symptom troubleshooting "No.23 A/C does not work sufficiently". No. 23 A/C Does Not Work Sufficiently
4. 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:
- A/C relay
- Open or short to GND circuit in wiring harness and connectors (Ignition switch-A/C relay-PCM terminal 1AN)
- A/C related parts
- APP1, APP2 PIDs