Check Seat Memory Switch Circuit

CHECK FUNCTION (WITH CONSULT-II)

With CONSULT-II

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

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.

Fig 1: CONSULT-II Function Display - DATA MONITOR

G04077745

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 connector.

Check continuity between seat memory switch connector D22 terminal 1, 2, 3 and 4.

TERMINAL CONTINUITY CHART

Connector	Terminals		Condition	Continuity
D22	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 Connector D22 Terminal 1, 2, 3 And 4

G04077746

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 driver seat control unit connector.
2. Check continuity between driver seat control unit connector B152 terminals 22, 34, 35 and seat memory switch connector D22 terminals 1, 2, 3.
  22 (R/B) - 1 (P) : Continuity should exist.
  
  34 (L/W) - 3 (GY) : Continuity should exist.
  
  35 (L/B) - 2 (LG) : Continuity should exist.
3. Check continuity between driver seat control unit connector B152 terminals 22, 34, 35 and ground.
  22 (R/B) - Ground : Continuity should not exist.
  
  34 (L/W) - Ground : Continuity should not exist.
  
  35 (L/B) - Ground : Continuity should not exist.
  
  Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector B152 Terminals 22, 34, 35 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : GO TO 4.

NG : Repair or replace harness between driver seat control unit and seat memory switch.
CHECK SEAT MEMORY SWITCH GROUND CIRCUIT
Check continuity between seat memory switch connector D22 terminal 4 and ground.

4 (B) - Ground : Continuity should exist.

OK or NG

OK : Replace driver seat control unit.

NG : Repair or replace harness between seat memory switch and ground.

Fig 4: Identifying Continuity Between Seat Memory Switch Connector D22 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.