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Seat Memory Switch Circuit Inspection

WARNING: This page is about a different car, the 2003 Nissan Murano. 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", "SET SW" on the DATA MONITOR, operate the switch to check ON/OFF operation.

    MONITOR ITEM

    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: Displaying "MEMORY SW1, MEMORY SW2" On DATA MONITOR
    G03359240Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    GO TO 2.

    OK or NG

    1. OK : Seat memory switch circuit is OK.
    2. NG : GO TO 2.
  2. CHECK SEAT MEMORY SWITCH 
    1. Turn ignition switch OFF.
    2. Disconnect seat memory switch connector.
    3. Operate the setting switch and memory switch.
    4. Check continuity between seat memory switch as follows.
      CONDITION

      Connector Terminals Condition Continuity
      (+) (-)
      D3 1 4 Memory switch 1 ON Continuity should exist.
      Memory switch 1: OFF Continuity should not exist.
      2 Memory switch 2: ON Continuity should exist.
      Memory switch 2: OFF Continuity should not exist.
      3 Set switch: ON Continuity should exist.
      Set switch: OFF Continuity should not exist.
      Fig 2: Checking Continuity Between Seat Memory Switch Terminals 1, 2, 3 And 4
      G03359241Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK : GO TO 3.
    2. NG : Replace seat memory switch.
  3. 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).
      1. 9 (LG/B) - 1 (LG/B): Continuity should exist. 
      2. 24 (R/Y) - 3 (R/Y): Continuity should exist. 
      3. 25 (P/L) - 2 (P/L): Continuity should exist. 
      Fig 3: Checking Continuity Between Automatic Drive Positioner Control Unit Connector M19 Terminals 9, 24, 25 And Seat Memory Switch Connector D3 Terminals 1, 2, 3, And Between Connector M19 Terminals 9 , 24 , 25 And Connector D3 Terminals 1, 2, 3
      G03359242Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between automatic drive positioner control unit connector M19 terminals 9 (LG/B), 24 (R/Y), 25 (P/L) and ground.
      1. 9 (LG/B) - Ground : Continuity should not exist. 
      2. 24 (R/Y) - Ground : Continuity should not exist. 
      3. 25 (P/L) - Ground : Continuity should not exist. 

    OK or NG

    1. OK : GO TO 4.
    2. NG : Repair or replace harness between automatic drive positioner control unit and seat memory switch.
  4. CHECK SEAT MEMORY SWITCH GROUND CIRCUIT 

    Check continuity between seat memory switch D3 terminal 4 (B) and ground.

    1. 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 And Ground
    G03359243Courtesy of NISSAN MOTOR CO., U.S.A.
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