Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK FUSES
   
   

   Check that the following fuse is not blown.

   Signal name	Fuse No.
   Ignition power supply	30 (10A)

   Is the fuse blown?

   YES 

   Replace the blown fuse after repairing the affected circuit.

   NO 

   GO TO STEP 2. 

2. CHECK LANE CAMERA UNIT POWER SUPPLY CIRCUIT
   
   

   Check voltage between lane camera unit harness connector and ground.

   Terminal			Condition	Voltage (Approx.)
   (+)		(-)
   Lane camera unit		Ground	Ignition switch
   Connector	Terminal
   R17	3		OFF	0 V
   			ON	Battery voltage

   Is the inspection result normal?

   YES 

   GO TO STEP 3. 

   NO 

   Repair the lane camera unit power supply circuit.

3. CHECK LANE CAMERA UNIT GROUND CIRCUIT
   
   
   1. Turn the ignition switch OFF.
   2. Disconnect the lane camera unit connector.
   3. Check for continuity between lane camera unit harness connector and ground.

      Lane camera unit		Ground	Continuity
      Connector	Terminal
      R17	1		Yes

   Is the inspection result normal?

   YES 

   Inspection End.

   NO 

   Repair the lane camera unit ground circuit.