When Mechanical Key Is Used

With the key inserted into the ignition switch, and the ignition switch LOCK or ACC position, when driver's door is opened, the warning chime will sound.

• BCM detects key inserted into the key switch, ignition switch in LOCK or ACC position, and front door switch (driver side) ON. And then transmits buzzer output signal (ignition key warning chime) to unified meter and A/C amp. with CAN communication.
• Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combination meter with communication line.
• When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
  Fig 1: Identifying Ignition Key Warning Chime System Diagram

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