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.
   11	Battery power supply	15 (15A)
   23	ACC power supply	65 (10A)

   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 display unit connector.
   3. Check voltage between display connector M92 and ground.

      Display unit		Ground	Condition	Voltage (Approx.)
      Connector	Terminal
      M92	23	-	Ignition switch: ACC	Battery voltage
      	11		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 display unit connector M92 terminal 12 and ground.

      Display unit		Ground	Continuity
      Connector	Terminal
      M92	12	-	Yes

   Is the inspection result normal?

   YES 

   Inspection End.

   NO 

   Repair or replace harness or connectors.