A/C Signal: Testing and Inspection

A/C Cut Control Inspection
1. Start the engine.
2. Turn the A/C switch and fan switch to ON.
3. Verify that the A/C compressor magnet clutch actuates.
4. If is does not actuate, go to troubleshooting of the A/C.
5. Fully open the throttle valve and verify that the A/C compressor magnet clutch does not actuate for 3-6 seconds.
6. If it actuates, check the following.




a. Connect the Special Service Tools to the data link connector-2.
b. Turn the A/C switch to OFF.
c. Turn the ignition switch to ON.




d. Select "SIMULATION TEST" and press TRIGGER.
e. Select "IG ON TEST" and press TRIGGER.
f. Select "A/C RLY" and press TRIGGER.
g. Press START.
h. Turn the A/C relay from OFF to ON and check if the operation sound of the relay is heard.
- If the operation sound is heard, check the PCM terminal 1G voltage.
- If the operation sound is not heard, check the A/C relay.