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Seat Memory Switch Circuit Inspection

  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.

    CHECKING MIRROR SENSOR With CONSULT-II

    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 Display - SET SW, MEMORY SW1, MEMORY SW2 On DATA MONITOR
    G03107689Courtesy 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 "memory switch and lumber support switch" connector.
    3. Operate the setting switch and memory switch.
    4. Check continuity between "memory switch and lumber support switch" connector and ground.
      Fig 2: Checking Seat Memory Switch
      G03107690Courtesy of NISSAN MOTOR CO., U.S.A.
      TERMINAL CONTINUITY

      Terminals (Wire color) Condition Continuity
      Connector Terminal
      B158 34 (L/W) 61 (B/Y) Set switch: ON Yes.
      Set switch: OFF No.
      22 (L/G) Memory switch 1 ON Yes.
      Memory switch 1: OFF No.
      35 (L/B) Memory switch 2: ON Yes.
      Memory switch 2: OFF No.

    OK or NG

    1. OK: GO TO 3.
    2. NG: Replace "memory switch and lumber support switch" and lumber support switch.
  3. CHECK HARNESS CONTINUITY 
    1. Disconnect driver seat control unit connector.
    2. Check continuity between driver seat control unit connector B152 terminals 22 (L/G), 34 (L/W), 35 (L/B) and "memory switch and lumber support switch" connector B158 terminals 22 (L/G), 34 (L/W), 35 (L/B).

      22 (L/G) - 22 (L/G): Continuity should exist. 

      34 (L/W) - 34 (L/W): Continuity should exist. 

      35 (L/B) - 35 (L/B): Continuity should exist. 

    3. Check continuity between automatic driver seat control unit connector B152 terminals 22 (L/G), 34 (L/W), 35 (L/B) and ground.

      22 (L/G) - Ground: Continuity should not exist. 

      34 (L/W) - Ground: Continuity should not exist. 

      35 (L/B) - Ground: Continuity should not exist. 

      Fig 3: Checking Harness Continuity
      G03107691Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 4.
    2. NG: Repair or replace harness between driver seat control unit and "memory switch and lumber support switch".
  4. CHECK "MEMORY SWITCH AND LUMBER SUPPORT SWITCH" GROUND CIRCUIT 

    Check continuity between "memory switch and lumber support switch" B158 terminal 61 (B/Y) and ground.

    61 (B/Y) - Ground: Continuity should exist. 

    OK or NG

    1. OK: Replace driver seat control unit.
    2. NG: Repair or replace harness between "memory switch and lumber support switch" and ground.
      Fig 4: Checking Memory Switch And Lumber Support Switch
      G03107692Courtesy of NISSAN MOTOR CO., U.S.A.
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