A/C Cut-Off Control Inspection

A/C CUT-OFF CONTROL INSPECTION

1. Start the engine and let it idle.
2. Turn the NC switch and the fan switch ON.
3. Fully open the throttle valve. Then 3 - 6 seconds after, check if the operation sound of the A/C compressor electromagnetic clutch is heard.
4. If the operation sound is not heard, do as follows:
(1) Connect the SSTs (NGS) to the data link connector-2.




(2) Select the SIMULATION TEST function on the NGS display.
(3) Turn the NC relay from OFF to ON by using the "A/C RLY" function and check for the operation sound of the relay.
5. If the operation sound is heard, check the following PIDs:
- NL SW (MTX)
- TR SW (ATX)
- TP V
6. If the operation sound is not heard, check the following:
- A/C relay
- Open circuit in wiring harnesses and connectors (Ignition switch - A/C relay - PCM)