Pre-Check

PRE-CHECK

1. WARNING FOR A/C COMPRESSOR LOCK




If the compressor lock occurs during A/C operation, the A/C switch indicator on the A/C control panel starts blinking. When this occurs, check for compressor lock (DTC 22) using diagnosis trouble code. And then proceed to inspect the circuit or the component.

Compressor lock sensor circuit.

2. LIST OF OPERATION METHODS




By operating each of the A/C control switches as shown in the diagram, it is possible to enter the diagnosis check mode.

3. INDICATOR CHECK







a. Turn the ignition switch to ON while pressing the A/C control "AUTO" switch and "R/F" switch simultaneously.




b. Check that the indicators come on and go off 4 times at 1 second intervals in succession.

HINT:
- After the indicator check is completed, the system enters the DTC automatically.
- Press the OFF switch when canceling the check mode.