Rear Lifting Switch Circuit Inspection

With CONSULT-II 

With "LIFT RR SW-UP, LIFT RR SW-DN" on the DATA MONITOR, operate the rear lifting switch to check ON/OFF operation.

Fig 1: CONSULT-II Display - LIFT RR SW-UP, LIFT RR SW-DN On DATA MONITOR

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II 

1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and ground.
   Fig 2: Checking Voltage Between Driver Seat Control Unit Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   TERMINAL VOLTAGE
   
   

   Connector	Terminals (Wire color)		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   B152	27 (L)	Ground	Rear lifting switch ON (UP operation)	0
   			Rear lifting switch OFF	Battery voltage
   	40 (L/Y)		Rear lifting switch ON (DOWN operation)	0
   			Rear lifting switch OFF Battery voltage	0

OK or NG

1. OK: Rear seat lifting switch circuit is OK.
2. NG: GO TO 2.

1. Disconnect driver seat control unit connector and driver power seat switch connector.
2. Check continuity between driver seat control unit connector B152 terminals 27 (L), 40 (L/Y) and power seat switch connector B156 terminals 27 (L), 40 (L/Y).
   Fig 3: Checking Rear Lifting Switch Harness Continuity

   Courtesy of NISSAN MOTOR CO., U.S.A.

   27 (L) - 27 (L): Continuity should exist. 

   40 (L/Y) - 40 (L/Y): Continuity should exist. 

3. Check continuity between driver seat control unit connector B152 terminals 27 (L), 40 (L/Y) and ground.

   27 (L) - Ground: Continuity should not exist. 

   40 (L/Y) - Ground: Continuity should not exist. 

OK or NG

1. OK: GO TO 3.
2. NG: Repair or replace harness between driver seat control unit and power seat switch.

Check continuity between power seat switch as follows.

Fig 4: Checking Rear Lifting Switch

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

1. OK: Check the condition of the harness and connector.
2. NG: Replace power seat switch.