Diagnosis Procedure

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

1. CHECK VDC OFF SWITCH 

   Perform the VDC OFF switch component inspection. Refer to "COMPONENT INSPECTION ".

   Is the inspection result normal? 

   YES: GO TO 2

   NO: Replace VDC OFF switch.

2. CHECK VDC OFF SWITCH HARNESS 
   1. Disconnect ABS actuator and electric unit (control unit) connector.
   2. Check continuity between ABS actuator and electric unit (control unit) connector E125 (A) terminal 38 and VDC OFF switch connector M253 (B) terminal 1.

      ABS actuator and electric unit (control unit)		VDC OFF switch		Continuity
      Connector	Terminal	Connector	Terminal
      E125 (A)	38	M253 (B)	1	Yes

      Fig 1: Checking VDC Off Switch Harness Continuity

      Courtesy of NISSAN NORTH AMERICA, INC.
   3. Check continuity between ABS actuator and electric unit (control unit) connector E125 (A) terminal 38 and ground.

      ABS actuator and electric unit (control unit)		-	Continuity
      Connector	Terminal
      E125 (A)	38	Ground	No

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness.

3. CHECK VDC OFF SWITCH GROUND 

   Check continuity between VDC OFF switch connector M253 terminal 2 and ground.

   VDC OFF switch		-	Continuity
   Connector	Terminal
   M253	2	Ground	Yes

   Fig 2: Checking VDC Off Switch Ground Continuity

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

   YES: GO TO 4

   NO: Repair or replace harness.

4. CHECK COMBINATION METER 

   Check if the indication and operation of combination meter are normal. Refer to "DIAGNOSIS DESCRIPTION ".

   Is the inspection result normal? 

   YES: Replace ABS actuator and electric unit (control unit). Refer to "REMOVAL AND INSTALLATION ".

   NO: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".