Check Intelligent Key Warning Buzzer (Front of Vehicle)

1. Turn ignition switch OFF.
2. Disconnect Intelligent Key warning buzzer (front of vehicle) connector.
3. Check voltage between Intelligent Key warning buzzer (front of vehicle) harness connector E26 terminal 1 and ground.

   1 - Ground: Battery voltage 

   Fig 1: Checking Intelligent Key Warning Buzzer (Front Of Vehicle) Power Supply Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: GO TO 2.

   NG: Repair or replace Intelligent Key warning buzzer (front of vehicle) power supply circuit.

1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit harness connector M42 (A) terminal 4 and Intelligent Key warning buzzer (front of vehicle) harness connector E26 (B) terminal 3.

   4 - 3: Continuity should exist  .

3. Check continuity between Intelligent Key warning buzzer (front of vehicle) harness connector E26 (B) terminal 3 and ground.

   3 - Ground: Continuity should not exist  .

   Fig 2: Checking Intelligent Key Warning Buzzer (Front Of Vehicle) Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: GO TO 3.

   NG: Repair or replace harness between Intelligent Key warning buzzer (front of vehicle) and Intelligent Key unit.

Connect battery power supply to Intelligent Key warning buzzer (front of vehicle) harness connector E26 terminals 1 and 3, and check the operation.

1 (BAT) - 3 (BAT-): The buzzer sounds 

Fig 3: Checking Intelligent Key Warning Buzzer Operation

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG 

OK: Intelligent Key warning buzzer (front of vehicle) is OK.

NG: Replace Intelligent Key warning buzzer (front of vehicle).