Check Intelligent Key Warning Buzzer

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect Intelligent Key warning buzzer connector.
3. Check voltage between Intelligent Key warning buzzer connector D11 (driver side), D41 (passenger side) terminal 1 (L) and ground.
  1 (L) - Ground : Battery voltage
  
  Fig 1: Identifying Voltage Between Intelligent Key Warning Buzzer Connector D11, D41 Terminal 1 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 2.

NG: Repair or replace Intelligent Key warning buzzer power supply circuit.
CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M34 terminal 4 and Intelligent Key warning buzzer connector D11 (driver side), D41 (passenger side) terminal 2 (G).
  4 (LG) - 2 (G) : Continuity should exist.
3. Check continuity between Intelligent Key warning buzzer connector D11 (driver side), D41 (passenger side) terminal 2 (G) and ground.
  2 (G) - Ground : Continuity should not exist.
  
  Fig 2: Identifying Intelligent Key Warning Buzzer Circuit
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 3.

NG: Repair or replace harness between Intelligent Key warning buzzer and Intelligent Key unit.
CHECK INTELLIGENT KEY WARNING BUZZER OPERATION
Connect battery power supply to Intelligent Key warning buzzer connector D11 (driver side), D41 (passenger side) terminals 1 and 2, and check the operation.

1 (BAT+) - 2 (BAT-) : the buzzer sounds

Fig 3: Identifying Intelligent Key Warning Buzzer Operation
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Intelligent Key warning buzzer is OK.

NG: Replace Intelligent Key warning buzzer