Pre-Check

PRE-CHECK




1. WARNING FOR A/C COMPRESSOR LOCK
If compressor lock occurs during A/C operation, the A/C switch indicator on the A/C control assembly starts blinking. When this occurs, check for compressor lock (DTC 22) using diagnosis trouble code check, 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. Within 5 sec. after turning the ignition switch on, press the A/C switch 3 times and turn the blower switch from OFF to AUTO.




b. Check that all the indicators light up and go off at 1 second intervals of 4 times in succession.

HINT:
- After the indicator check ends, the system enters the DTC begins automatically.
- Operate the blower switch from AUTO to the other positions when desiring to cancel the check mode.