Seat Memory Switch Circuit Inspection

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

CHECK FUNCTION

With CONSULT-II

With "SET SW, MEMORY SW1, MEMORY SW2" on the DATA MONITOR, operate the switch to check ON/OFF operation.

MONITOR ITEM CONTENTS

Monitor item [OPERATION or UNIT]		Contents
MEMORY SW1	"ON/OFF"	ON/OFF status judged from the seat memory switch 1 signal is displayed.
MEMORY SW2	"ON/OFF"	ON/OFF status judged from the seat memory switch 2 signal is displayed.
SET SW	"ON/OFF"	ON/OFF status judged from the setting switch signal is displayed.

Without CONSULT-II

TERMINAL VOLTAGE SPECIFICATION

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	+	-	Condition	Voltage (V) (Approx.)
D5	1	4	Memory switch 1 ON	0
	1		Memory switch 1: OFF	5
	2		Memory switch 2: ON	0
	2		Memory switch 2: OFF	5
	3		Set switch: ON	0
	3		Set switch: OFF	5

Fig 1: CONSULT-II Screen Display - Data Monitor

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

OK or NG

OK : Seat memory switch circuit is OK.

NG : GO TO 2.

CHECK SEAT MEMORY SWITCH

Turn ignition switch OFF.
Disconnect seat memory switch.
Operate the setting switch and seat memory switch.
Check continuity between seat memory switch as follows.

SEAT MEMORY SWITCH

Terminal		Condition	Continuity
1	4	Memory switch 1 ON	Yes
1		Memory switch 1: OFF	No
2		Memory switch 2: ON	Yes
2		Memory switch 2: OFF	No
3		Set switch: ON	Yes
3		Set switch: OFF	No

Fig 2: Checking Continuity Between Seat Memory Switch Terminals

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

OK or NG

OK : GO TO 3.

NG : Replace seat memory switch.

CHECK HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit.
2. Check continuity between automatic drive positioner control unit connector M33 terminals 9, 24, 25 and seat memory switch connector D5 terminals 1, 2, 3.
  9 - 1 : Continuity should exist.
  
  24 - 3 : Continuity should exist.
  
  25 - 2 : Continuity should exist.
3. Check continuity between automatic drive positioner control unit connector M41 terminals 9, 24, 25 and ground.
  9 - Ground : Continuity should not exist.
  
  24 - Ground : Continuity should not exist.
  
  25- Ground : Continuity should not exist.
Fig 3: Checking Harness Continuity
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK : GO TO 4.

NG : Repair or replace harness.
CHECK SEAT MEMORY SWITCH GROUND CIRCUIT
Check continuity between seat memory switch D5 terminal 4 and ground.

4 - Ground : Continuity should exist.

OK or NG

OK : Replace automatic drive positioner control unit.

NG : Repair or replace harness.

Fig 4: Checking Continuity Between Seat Memory Switch D5 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.