Key Warning Chime Does Not Operate

Check if the key switch fuse [fuse 19, located in the fuse block (J/B)] is blown. Refer to "WIRING DIAGRAM - CHIME - ".

Is the fuse blown?

• YES: Replace the fuse. Be sure to repair the cause of malfunction before installing new fuse.
• NO: GO TO 2.

With key removed from the ignition and the front door LH open, turn the lighting switch to 1st or 2nd position.

Does warning chime sound?

• YES: GO TO 3.
• NO: Go to "ALL WARNING CHIMES DO NOT OPERATE " or "KEY WARNING CHIME AND LIGHT WARNING CHIME DO NOT OPERATE (SEAT BELT WARNING CHIME DOES OPERATE) ".

With CONSULT-II 

With "DATA MONITOR" of "BUZZER", confirm "KEY ON SW" changes when the key is inserted/removed from the ignition key cylinder.

Fig 1: CONSULT-II Diagnosis Function Display KEY ON SW

Courtesy of NISSAN MOTOR CO., U.S.A.

When key is inserted in ignition key cylinder: KEY ON SW ON 

When key is removed from ignition key cylinder: KEY ON SW OFF 

Without CONSULT-II 

Check voltage between BCM harness connector M18 terminal 37 (B/R) and ground.

Fig 2: Checking Voltage Between Terminal 37 & Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Terminal Voltage Chart

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

• OK: Replace the BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
• NG: GO TO 4.

1. Disconnect key switch connector.
2. Check continuity between key switch connector M27 terminals 1 and 2.
   Fig 4: Check Continuity Between Terminals 1 & 2

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Terminal Continuity Chart

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

• OK: GO TO 5.
• NG: Replace the key switch.

1. Disconnect BCM connector M18.
2. Check continuity between BCM harness connector M18 terminal 37 (B/R) and key switch harness connector M27 terminal 2 (B/R).
   Fig 6: Checking Continuity Between Terminal 37, 2 & Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   Continuity should exist. 

3. Check continuity between BCM harness connector M18 terminal 37 (B/R) and ground.

   Continuity should not exist. 

OK or NG

• OK: GO TO 6.
• NG: Repair harness or connector.

Check voltage between key switch harness connector M27 terminal 1 (Y/R) and ground.

Fig 7: Checking Voltage Between Terminal 1 & Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Battery voltage should exist. 

OK or NG

• OK: Replace the BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
• NG: Check harness for open between key switch and fuse.