Check Front Lifting Switch Circuit

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUNCTION

With CONSULT-II

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

MONITOR ITEM

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

Fig 1: CONSULT-II Display - Data Monitor

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

Without CONSULT-II

Turn ignition switch OFF.
Front lifting switch operate, check voltage between driver seat control unit connector and ground.

VOLTAGE SPECIFICATIONS

Connector	Terminals (Wire color)		Front lifting switch condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Front lifting switch condition	Voltage (V) (Approx.)
B324	28 (L/P)	Ground	UP	0
	28 (L/P)		Other than above	Battery voltage
	13 (L/G)		DOWN	0
	13 (L/G)		Other than above	Battery voltage

Fig 2: Identifying Voltage Between Driver Seat Control Unit Connector And Ground

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

OK or NG

OK : Front lifting switch circuit is OK.
NG : GO TO 2.

CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and power seat switch (driver side) connector.
2. Check continuity between driver seat control unit connector B324 terminals 13, 28 and power seat switch (driver side) connector B327 terminals 13, 28.
  13 (L/G) - 13 (L/G) : Continuity should exist.
  
  28 (L/P) - 28 (L/P) : Continuity should exist.
3. Check continuity between driver seat control unit connector B324 terminals 13, 28 and ground
  13 (L/G) - Ground : Continuity should not exist.
  
  28 (L/P) - Ground : Continuity should not exist.
Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector B324 Terminals 13, 28 And Ground
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.

CHECK FRONT END LIFTING SWITCH

Check continuity between power seat switch as follows.

CONTINUITY SPECIFICATIONS

Terminals		Front lifting switch condition	Continuity
28	32	UP	Yes
28		Other than above	No
13		DOWN	Yes
13		Other than above	No

Fig 4: Identifying Continuity Between Front End Lifting Switch

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

OK or NG

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