Check Intelligent Key Warning Buzzer

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 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. 1 (L) - Ground : Battery voltage
OK or NG
1. OK : GO TO 2.
2. NG : Repair or replace Intelligent Key warning buzzer power supply circuit.
Fig 1: Checking Intelligent Key Warning Buzzer Power Supply Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.
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).
  1. 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.
  1. 2 (G) - Ground : Continuity should not exist.
OK or NG
1. OK : GO TO 3.
2. NG : Repair or replace harness between Intelligent Key warning buzzer and Intelligent Key unit.
Fig 2: Checking Intelligent Key Warning Buzzer Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.
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. 1 (BAT+) - 2 (BAT-) : the buzzer sounds
OK or NG
1. OK : Intelligent Key warning buzzer is OK.
2. NG : Replace Intelligent Key warning buzzer
Fig 3: Checking Intelligent Key Warning Buzzer Operation
Courtesy of NISSAN MOTOR CO., U.S.A.