Lifting Switch (Rear) Circuit Inspection

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

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.

DATA MONITOR REFERENCE

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

Check voltage between driver seat control unit connector and ground.

TERMINALS VOLTAGE CHART

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
B401	14	Ground	Lifting switch (rear) ON (DOWN operation)	0
	14		Other than above	Battery voltage
	29		Lifting switch (rear) ON (UP operation)	0
	29		Other than above	Battery voltage

Fig 2: Checking Voltage Between Driver Seat Control Unit Connector Terminal 14, 29 And Ground

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

OK or NG

OK: Rear lifting switch circuit is OK.

NG: GO TO 2.

CHECK LIFTING SWITCH (REAR) CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector B401 terminals 14, 29 and power seat switch connector B407 terminals 2, 8.
  14 - 8 : Continuity should exist.
  
  29 - 2 : Continuity should exist.
3. Check continuity between driver seat control unit connector B401 terminals 14, 29 and ground.
  14 - Ground : Continuity should not exist.
  
  29 - Ground : Continuity should not exist.
OK or NG

OK: GO TO 3.

NG: Repair or replace harness.

Fig 3: Checking Continuity Between Driver Seat Control Unit Connector B401 Terminals 14, 29 And Ground, And Between Connector B401 Terminals 14, 29 And Power Seat Switch Connector B407 Terminals 2, 8
Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK LIFTING SWITCH (REAR)

Check continuity between power seat switch LH terminals as follows.

TERMINALS CONTINUITY CHART

Terminals		Condition	Continuity
8	3	Lifting switch (rear) ON (DOWN operation)	Yes
8		Other than above	No
2		Lifting switch (rear) ON (UP operation)	Yes
2		Other than above	No

Fig 4: Checking Continuity Between Power Seat Switch LH Terminal 3 And Terminals 2 & 8

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 LH. Refer to "FRONT SEAT ".