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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window System >> Power Window System >> Front Door Lock Assembly LH (Key Cylinder Switch) Check

Front Door Lock Assembly LH (Key Cylinder Switch) Check

  1. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) INPUT SIGNAL 

    With CONSULT-II

    • Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK SW(" in "DATA MONITOR" mode for "POWER DOOR ROCK SYSTEM" with CONSULT-II. Refer to DATA MONITOR  .
      1. "KEY CYL LK-SW" should be "ON" when key inserted in door key cylinder is turned to lock. 
        Fig 1: Displaying Data Monitor Screen
        G02468619Courtesy of NISSAN MOTOR CO., U.S.A.
    • Check front door lock assembly LH (key cylinder switch) ("KEY CYL UN-SW(" in "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" with CONSULT-II. Refer to DATA MONITOR  .
      1. "KEY CYL UN-SW" should be "ON" when key inserted in door key cylinder was turned to unlock. 
        Fig 2: Displaying Data Monitor Screen
        G02468620Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II

    Check voltage between main power window and door lock/unlock switch connector and ground.

    Fig 3: Connector Terminal Specifications
    G02468621Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 4: Checking Voltage Between Main Power Window And Door Lock/Unlock Switch Connector And Ground
    G02468622Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Front door lock assembly LH (key cylinder switch) is OK.
    2. NG: GO TO 2.
  2. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect main power window and door lock/unlock switch and front door lock assembly (key cylinder switch).
    3. Check continuity between main power window and door lock/ unlock switch connector D7 terminals 4, 6 and front door lock assembly LH (key cylinder switch) connector D14 terminals 1, 6.
      Fig 5: Checking Continuity Between Main Power Window And Door Lock/ Unlock Switch And Front Door Lock Assembly
      G02468623Courtesy of NISSAN MOTOR CO., U.S.A.
      1. 6 (R) - 6 (R): Continuity should exist. 
      2. 4 (L) - (L): Continuity should exist. 

    OK or NG

    1. OK: GO TO 3.
    2. NG: Repair or replace harness.
  3. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) GROUND 

    Check continuity between front door lock assembly LH (key cylinder switch) connector D14 terminal 5 and ground.

    Fig 6: Checking Continuity Between Front Door Lock Assembly And Ground
    G02468624Courtesy of NISSAN MOTOR CO., U.S.A.
    1. 5 (B) - Ground: Continuity should exist. 

    OK or NG

    1. OK: GO TO 4.
    2. NG: Repair or replace harness.
  4. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) 

    Check continuity between front door lock assembly LH (key cylinder switch) connector D14 terminal 1, 6 and 5.

    Fig 7: Checking Terminal Continuity
    G02468625Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 8: Checking Continuity Between Front Door Lock Assembly Terminals 1, 6 And 5
    G02468626Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace main power window and door lock/unlock switch.
    2. NG: Replace front door lock assembly LH (key cylinder switch).