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Front Lifting Switch Circuit Check

  1. Check function  .

    With CONSULT-II 

    With "LIFT FR SW-UP, LIFT FR SW-DN" on the DATA MONITOR, operate the front lifting switch to check ON/ OFF operation.

    FRONT LIFTING SWITCH CIRCUIT CHECK

    Monitor Item [OPERATION Or UNIT] Parameter Contents
    LIFT FR SW-DN "ON/ OFF" ON/OFF status judged from the FR lifter switch (DOWN) signal is displayed.
    LIFT RR SW-UP "ON/ OFF" ON/OFF status judged from the RR lifter switch (UP) signal is displayed.
    Fig 1: Identifying DATA MONITOR Display Screen
    G02494762Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Turn ignition switch OFF.
    2. Front lifting switch operate, check voltage between driver seat control unit connector and ground.
      Fig 2: Displaying Front Lifting Switch Terminals & Voltage Table
      G02494763Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 3: Checking Voltage Between Driver Seat Control Unit Connector & Ground
      G02494764Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Front lifting switch circuit is OK.
    2. NG: GO TO NEXT STEP.

  2. Check harness continuity  .
    1. Disconnect driver seat control unit connector and power seat switch (driver side) connector.
    2. Check continuity between driver seat control unit connector B152 terminals 26, 39 and driver seat switch connector B156 terminals 26, 39.
      1. 26 (L/P) - 26 (L/P): Continuity should exist. 
      2. 39 (L/G) - 39 (L/G): Continuity should exist. 
      Fig 4: Checking Continuity Between Driver Seat & Driver Seat Switch
      G02494765Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between driver seat control unit connector B152 terminals 26, 39 and ground
      1. 26 (L/P) - Ground: Continuity should not exist. 
      2. 39 (L/G) - Ground: Continuity should not exist. 

    OK or NG

    1. OK: GO TO NEXT STEP.
    2. NG: Repair or replace harness between driver seat control unit and power seat switch.

  3. Check front end lifting switch  .

    Front lifting switch operate, check continuity between driver seat switch connector B156 terminal 26, 39 and 61B.

    Fig 5: Displaying Front Lifting Switch Terminals Continuity Table
    G02494766Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 6: Checking Continuity Between Driver Seat Switch Connector Terminals
    G02494767Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Check the condition of the harness and connector.
    2. NG: Replace driver power seat switch.

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