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Seat Memory Switch Circuit Inspection

WARNING: This page is about a different car, the 2005 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUNCTION 

    With CONSULT-II 

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

    Fig 1: Identifying Display - Data Monitor
    G03600598Courtesy of NISSAN MOTOR CO., U.S.A.
    MEMORY SW & SET SW DATA MONITOR

    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 

    GO TO 2.

    OK or NG

    • OK : Seat memory switch circuit is OK.
    • NG : GO TO 2.
  2. CHECK SEAT MEMORY SWITCH 
    1. Turn ignition switch OFF.
    2. Disconnect seat memory switch.
    3. Operate the setting switch and seat memory switch.
    4. Check continuity between seat memory switch as follows.
      Fig 2: Checking Continuity Between Seat Memory Switch
      G03600599Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY BETWEEN SEAT MEMORY SWITCH REFERENCE

      Connector Terminal Condition Continuity
      D5 1 4 Memory switch 1 ON Yes
      Memory switch 1: OFF No
      2 Memory switch 2: ON Yes
      Memory switch 2: OFF No
      3 Set switch: ON Yes
      Set switch: OFF No

    OK or NG

    • OK : GO TO 3.
    • NG : Replace seat memory switch.
  3. 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 (LG/B) - 1 (LG/B) : Continuity should exist  .

      24 (G/O) - 3 (G/O) : Continuity should exist  .

      25 (P/L) - 2 (P/L) : Continuity should exist  .

    3. Check continuity between automatic drive positioner control unit connector M33 terminals 9, 24, 25 and ground.

      9 (LG/B) - Ground : Continuity should not exist  .

      24 (G/O) - Ground : Continuity should not exist  .

      25 (P/L) - Ground : Continuity should not exist  .

    Fig 3: Checking Continuity Between Automatic Drive Positioner Control Unit Connector M33 Terminals 9, 24, 25 And Seat Memory Switch Connector D5 Terminals 1, 2, 3 And Ground
    G03600600Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK : GO TO 4.
    • NG : Repair or replace harness.
  4. CHECK SEAT MEMORY SWITCH GROUND CIRCUIT 

    Check continuity between seat memory switch D5 terminal 4 and ground.

    4 (B) - Ground : Continuity should exist  .

    Fig 4: Checking Continuity Between Seat Memory Switch D5 Terminal 4 And Ground
    G03600601Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK : Replace automatic drive positioner control unit.
    • NG : Repair or replace harness.
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