Operation mode

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WARNING: This page is about a different car, the 2005 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.
1. Normal status
  - When BCM is not in sleep status, OUTPUT terminals (1-5) send out ON signal every 10 ms.
2. 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: Operation Mode
    Courtesy of NISSAN MOTOR CO., U.S.A.