Seat Memory Switch Circuit Check

WARNING: This page is about a different car, the 2004 Nissan Murano. 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", "SET SW" on the DATA MONITOR, operate the switch to check ON/OFF operation.

SEAT MEMORY SWITCH CIRCUIT CHECK 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.

Fig 1: Scan Tool Displaying DATA MONITOR

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

Without CONSULT-II

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 connector.

Check continuity between seat memory switch as follows.

CONTINUITY CHECK CHART

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

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 connector.
2. Check continuity between automatic drive positioner control unit connector M19 terminals 9 (LG/B), 24 (R/Y), 25 (P/L) and seat memory switch connector D3 terminals 1 (LG/B), 2 (P/L), 3 (R/Y).
  9 (LG/B) - 1 (LG/B): Continuity should exist.
  
  24 (R/Y) - 3 (R/Y): Continuity should exist.
  
  25 (P/L) - 2 (P/L): Continuity should exist.
3. Check continuity between automatic drive positioner control unit connector M19 terminals 9 (LG/B), 24 (R/Y), 25 (P/L) and ground.
  9 (LG/B) - Ground: Continuity should not exist.
  
  24 (R/Y) - Ground: Continuity should not exist.
  
  25 (P/L) - Ground: Continuity should not exist.
  
  Fig 3: Checking Continuity Between Automatic Drive Positioner Control Unit Connector And Seat Memory Switch Connector, And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace harness between automatic drive positioner control unit and seat memory switch.
CHECK SEAT MEMORY SWITCH GROUND CIRCUIT
Check continuity between seat memory switch D3 terminal 4 (B) and ground.

4 (B) - Ground: Continuity should exist.

OK or NG
1. OK: Replace automatic drive positioner control unit.
2. NG: Repair or replace harness between seat memory switch and ground.
  
  Fig 4: Checking Continuity Between Seat Memory Switch D3 Terminal 4 (B) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.