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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1290 (Warning Chime) >> Warning Chime >> Key Warning Chime and Light Warning Chime Do Not Operate (Seat Belt Warning Chime Does Operate)

Key Warning Chime and Light Warning Chime Do Not Operate (Seat Belt Warning Chime Does Operate)

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK BCM INPUT SIGNAL 

    With CONSULT-II 

    1. Select "BCM" on CONSULT-II.
    2. With "DATA MONITOR" of "BUZZER", confirm "DOOR SW-DR" changes with the status of front door LH.

    When front door LH is opened: DOOR SW-DR ON 

    When front door LH is closed: DOOR SW-DR OFF 

    Fig 1: Data Monitor Display
    G03495392Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Check continuity between BCM harness connector M20 terminal 62 (SB) and ground.

    When front door LH is opened: Continuity should exist 

    When front door LH is closed: Continuity should not exist 

    OK or NG

    1. OK: Replace the BCM. Refer to REMOVAL AND INSTALLATION OF BCM .
    2. NG: GO TO 2.
    Fig 2: Checking Continuity Between BCM Harness Connector M20 Terminal And Ground
    G03495393Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK FRONT DOOR SWITCH LH CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect BCM connector and front door switch LH connector.
    3. Check continuity between BCM harness connector M20 terminal 62 (SB) and front door switch LH harness connector B8 terminal 2 (SB).
      Fig 3: Checking Front Door Switch LH Circuit
      G03495394Courtesy of NISSAN MOTOR CO., U.S.A.

      Continuity should exist. 

    4. Check continuity between BCM harness connector M20 terminal 62 (SB) and ground.

      Continuity should not exist. 

      OK or NG

      1. OK: GO TO 3.
      2. NG: Repair harness or connector.
  3. CHECK FRONT DOOR SWITCH LH AND GROUND CIRCUIT 

    Check continuity between front door switch LH terminal 2 and ground while switching the door switch from ON (open) to OFF (closed).

    When front door LH is opened: Continuity should exist 

    When front door LH is closed: Continuity should not exist 

    Fig 4: Checking Front Door Switch LH And Ground Circuit
    G03495395Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace the BCM. Refer to REMOVAL AND INSTALLATION OF BCM .
    2. NG: Replace the front door switch LH.