Seat Memory Switch Circuit Inspection

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUNCTION

With CONSULT-III

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

MEMORY MONITOR ITEM CHART

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-III

GO TO 2.

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 memory switch.

Check continuity between seat memory switch terminals as follows.

SEAT MEMORY SWITCH

Terminal		Condition	Continuity
(+)	(-)	Condition	Continuity
3	4	Set switch: ON	Yes
3		Set switch: OFF	No
2		Memory switch 1 ON	Yes
2		Memory switch 1: OFF	No
1		Memory switch 2: ON	Yes
1		Memory switch 2: OFF	No

Fig 1: 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 M41 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 2: Checking Continuity Between Automatic Drive Positioner Control Unit Terminals And Seat Memory Switch Terminals
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.

Fig 3: Checking Continuity Between Seat Memory Switch D5 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace automatic drive positioner control unit.

NG: Repair or replace harness.