Diagnosis Procedure

POWER SUPPLY AND GROUND CIRCUIT

A/C SWITCH ASSEMBLY : Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Automatic Air Conditioning.

1. CHECK A/C SWITCH ASSEMBLY POWER SUPPLY

1.Disconnect the A/C switch assembly connector.
2.Turn ignition switch ON.
3.Check voltage between A/C switch assembly harness connector M79 terminal 12 and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. CHECK FUSE

Check 10A fuse [No.30, located in the fuse block (J/B)].
NOTE:
Refer to "Terminal Arrangement" Fuse Block - Junction Box (J/B).
Is the inspection result normal?
YES- Check harness for open circuit. Repair or replace if necessary.
NO- Check harness for short circuit. Repair or replace if necessary.

3. CHECK A/C SWITCH ASSEMBLY GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between A/C switch assembly harness connector M79 terminal 1 and ground.





Is the inspection result normal?
YES- Replace the A/C switch assembly. Refer to "Removal and Installation" Automatic Air Conditioning.
NO- Repair the harnesses or connectors.