Diagnosis Procedure

Regarding Wiring Diagram information, refer to Wiring Diagram .

1. CHECK FUSES 

   Check that the following fuses are not blown:

   Signal name	Fuse No.
   Ignition power supply	27 (10A)

   Is the inspection result normal?

   >>

   GO TO 2.

   >>

   Replace the blown fuse after repairing the affected circuit.

2. CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT 

   Check voltage between ADAS control unit harness connector and ground.

   Terminal			Condition	Voltage(Approx.)
   (+)		(-)
   ADAS control unit		Ground	Ignition switch
   Connector	Terminal
   M258	12		OFF	0 V
   			ON	Battery voltage

   Is the inspection result normal?

   >>

   GO TO 3.

   >>

   Repair the ADAS control unit power supply circuit.

3. CHECK ADAS CONTROL UNIT GROUND CIRCUIT 
   1. Turn the ignition switch OFF.
   2. Disconnect the ADAS control unit connector.
   3. Check for continuity between ADAS control unit harness connector and ground.

      ADAS control unit		Ground	Continuity
      Connector	Terminal
      M258	5		Yes

   Is the inspection result normal?

   >>

   Inspection End.

   >>

   Repair the ADAS control unit ground circuit.