Seat Memory Switch Circuit Inspection

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

CHECK FUNCTION

With CONSULT-II

With "SET SW, MEMORY SW 1, MEMORY SW 2" on the DATA MONITOR, operate the switch to check ON/OFF operation.

CONSULT-II FUNCTION

Monitor item [OPERATION or UNIT]		Contents
MEMORY SW 1	"ON/OFF"	ON/OFF status judged from the seat memory switch 1 signal is displayed.
MEMORY SW 2	"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: CONSULT-II Display - DATA MONITOR

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.
Operate the setting switch and seat memory switch.

Check continuity between seat memory switch as follows.

CONTINUITY SPECIFICATIONS

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: Identifying Continuity Between Seat Memory Switch

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 M33 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: Identifying Harness Continuity
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 4: Identifying Seat Memory Switch Ground Circuit

OK or NG

OK : Replace automatic drive positioner control unit.

NG : Repair or replace harness.