1. Check Key Switch Input Signal

1. Disconnect smart entrance control unit harness connector.
2. Check voltage between smart entrance control unit harness connector M111 terminal 25 (W/G) and ground.
   Fig 1: Checking Key Switch Input Signal

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

   Refer to WIRING DIAGRAM - KEYLESS  .

OK or NG 

1. OK: Key switch is OK.
2. NG: GO TO 2  .