Diagnostic Procedure 3 (Seat Belt Buckle Switch LH Check)

With CONSULT-II 

Check seat belt buckle switch LH ("SEAT BELT SW(" in "DATA MONITOR" mode with CONSULT-II.

Fig 1: Identifying Seat Belt Buckle Switch LH Input Signal

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

With CONSULT-II 

1. Turn ignition switch ON.
2. Check voltage between smart entrance control unit terminal 22 and ground.

Fig 2: Identifying Smart Entrance Control Unit Terminal And Ground

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

OK or NG 

1. OK: Seat belt buckle switch LH is OK.
2. NG: GO TO 2.

Check continuity between terminals 1 and 2 when seat belt is fastened and unfastened.

Fig 3: Identifying Seat Belt Buckle Switch LH

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

OK or NG 

1. OK: Check the following.
   • Seat belt buckle switch LH ground circuit
   • Harness for open or short between smart entrance control unit and seat belt buckle switch LH
2. NG: Replace seat belt buckle switch LH.