Check Lifting Switch (Front) Circuit

With CONSULT-III 

With "LIFT FR SW-UP, LIFT FR SW-DN" on the DATA MONITOR, operate the lifting switch (front) to check ON/OFF operation.

Without CONSULT-III 

1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and ground.
   VOLTAGE SPECIFICATION
   
   

   Driver seat control unit connector	Terminals		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   B204	13	Ground	Lifting switch (front) ON (DOWN operation)	0
   			Other than above	Battery voltage
   	28		Lifting switch (front) ON (UP operation)	0
   			Other than above	Battery voltage

   Fig 1: Checking Voltage Between Driver Seat Control Unit Connector And Ground

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

OK or NG 

OK: Lifting switch (front) circuit is OK.

NG: GO TO 2.

1. Disconnect driver seat control unit and power seat switch connector.
2. Check continuity between driver seat control unit connector and power seat switch connector.
   CONTINUITY SPECIFICATION
   
   

   A		B		Continuity
   Driver seat control unit connector	Terminal	Power seat switch connector	Terminal
   B204	13	B213	13	Yes
   	28		28

3. Check continuity between driver seat control unit connector and ground.
   CONTINUITY SPECIFICATION
   
   

   A		Ground	Continuity
   Driver seat control unit connector	Terminal
   B204	13		No
   	28

   Fig 2: Checking Continuity Between Driver Seat Control Unit Connector And Power Seat Switch Connector

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

OK or NG 

OK: GO TO 3.

NG: Repair or replace harness.

Check continuity between power seat switch as follows.

Fig 3: Checking Continuity Between Power Seat Switch

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

OK or NG 

OK: Replace driver seat control unit.

NG: Replace power seat switch.