A/C AND AV SWITCH ASSEMBLY: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FUSE 

   Check that the following fuse is not blown.

   Terminal No.	Signal name	Fuse No.
   3	ACC power supply	65 (10A)

   Is the fuse blown? 

   YES: Replace the blown fuse after repairing the affected circuit.

   NO: GO TO 2.

2. CHECK POWER SUPPLY CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect A/C and AV switch assembly connector.
   3. Check voltage between A/C and AV switch assembly connector M98 terminal 3 and ground.

      A/C and AV switch assembly		Ground	Condition	Voltage (Approx.)
      Connector	Terminal
      M98	3	-	Ignition switch: ACC	Battery voltage

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness or connectors.

3. CHECK CONTROL UNIT GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect AV control unit connector M125.
   3. Check continuity between A/C and AV switch assembly connector M98 terminal 9 and AV control unit connector M125 terminal 98.

      A/C and AV switch assembly		AV control unit		Continuity
      Connector	Terminal	Connector	Terminal
      M98	9	M125	98	Yes

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair or replace harness or connectors.

4. CHECK SWITCH GROUND CIRCUIT 

   Check continuity between A/C and AV switch assembly connector M98 terminal 1 and ground.

   A/C and AV switch assembly		Ground	Continuity
   Connector	Terminal
   M98	1	-	Yes

   Is the inspection result normal? 

   YES: Inspection End.

   NO: Repair or replace harness or connectors.