Check Rear Lifting Switch Circuit

1. CHECK FUNCTION 

   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: Identifying CONSULT II Display - DATA MONITOR

   Courtesy of NISSAN MOTOR CO., U.S.A.
   LIFT RR SW-UP, LIFT RR SW-DN (WITH CONSULT-II)
   
   

   Monitor item [OPERATION or UNIT]		Contents
   LIFT RR SW-UP	"ON/OFF"	(ON/OFF) status judged from the RR lifter switch(UP) signal is displayed.
   LIFT RR SW-DN	"ON/OFF"	(ON/OFF) status judged from the RR lifter switch (DOWN) signal is displayed.

   Without CONSULT-II 

   1. Turn ignition switch OFF.
   2. Rear lifting switch operate, check voltage between driver seat control unit connector and ground.
   Fig 2: Identifying Voltage Between Driver Seat Control Unit Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   DRIVER SEAT CONTROL UNIT CONNECTOR AND GROUND (WITHOUT CONSULT-II)
   
   

   Connector	Terminals (Wire color)		Rear lifting switch condition	Voltage (V) (Approx.)
   	(+)	(-)
   B152	27 (L)	Ground	UP	0
   			Other than above	Battery voltage
   	40 (L/Y)		DOWN	0
   			Other than above	Battery voltage

   OK or NG 

   OK: Rear seat lifting switch circuit is OK.

   NG: GO TO 2.

2. CHECK REAR LIFTING SWITCH HARNESS CONTINUITY 
   1. Disconnect driver seat control unit connector and power seat switch connector.
   2. Check continuity between driver seat control unit connector B152 terminals 27, 40 and power seat switch connector B175 terminals 27, 40.

      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, 40 and ground.

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

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

      Fig 3: Checking Rear Lifting Switch Harness Continuity

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

   OK or NG

   OK: GO TO 3.

   NG: Repair or replace harness between driver seat control unit and power seat switch.

3. CHECK REAR LIFTING SWITCH 

Rear lifting switch operate, check continuity between power seat switch connector B175 terminal 27, 40 and 61B.

Fig 4: Checking Rear Lifting Switch

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

OK or NG 

OK: Check the condition of the harness and connector.

NG: Replace power seat switch.