Operation mode

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

Combination switch reading function has operation modes shown below.

Normal status
- When BCM is not in sleep status, OUTPUT terminals (1-5) send out ON signal every 10 ms.
Sleep status
- When BCM is in sleep status, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low power mode. Mean while OUTPUT 2, 3, and 4 send out ON signal every 60 ms, and accept only input from lighting switch system.
  
  Fig 1: Combination Switch Timing Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.