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

CHECK BCM INPUT SIGNAL
With CONSULT-II

With "DATA MONITOR of "KEY WARN ALM OR "LIGHT WARN ALM , confirm "DOOR SW-DR when the front door switch LH is operated.

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

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

Fig 1: Scan Tool Display "Data Monitor
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between BCM harness connector M21 terminal 14 (SB) and ground.

When front door LH is opened: Approx. 0V

When front door LH is closed: Approx. 5V

OK or NG
1. OK: Replace BCM.
2. NG: GO TO 2.
  
  Fig 2: BCM Harness Connector M21 Terminal 14 & Ground Voltage Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
CONTINUITY INSPECTION OF DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and front door switch LH connector.
3. Check continuity between BCM harness connector M21 terminal 14 (SB) and front door switch LH harness connector B8 terminal 2 (SB).
  
  Fig 3: BCM Harness Connector M21 Terminal 14 & Terminal 2 Continuity Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: BCM Harness Connector M21 Terminal 14 & Terminal 2 Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between BCM harness connector M21 terminal 14 (SB) and ground.
  
  Fig 5: BCM Harness Connector M21 Terminal 14 (Sb) & Ground Continuity Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG: Repair harness or connector.
CHECK DOOR SWITCH
Check front door switch LH.

When front door switch LH is released: Continuity should exist

When front door switch LH is pushed: Continuity should not exist

OK or NG
1. OK: Replace BCM.
2. NG: Replace front door switch LH.
  
  Fig 6: Front Door Switch LH Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.