Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK FUSE
   
   

   Check that the following fuses are not blown.

   Terminal No.	Signal name	Fuse No.
   4	ACC power supply	65 (10A)
   2	Battery power supply	15 (15A)

   Are the fuses blown?

   YES 

   Replace the blown fuse after repairing the affected circuit.

   NO 

   GO TO STEP 2  .

2. CHECK POWER SUPPLY CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect video distributor connector B24.
   3. Check voltage between video distributor connector B24 and ground.

      Video distributor		Ground	Condition	Voltage (Approx.)
      Connector	Terminal
      B24	2	-	Ignition switch: ACC	Battery voltage
      	4		Ignition switch: OFF

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   Repair or replace harness or connectors.

3. CHECK GROUND CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Check continuity between video distributor connector B24 and ground.

      Video distributor		Ground	Continuity
      Connector	Terminal
      B24	1	-	Yes
      	3

   Is the inspection result normal?

   YES 

   Inspection End.

   NO 

   Repair or replace harness or connectors.