Combination Switch Reading Function: Description

BCM reads the status of the combination switch at 10ms interval normally.

Fig 1: Identifying BCM Combination Switch Reading
Courtesy of SUZUKI OF AMERICA CORP.

NOTE: BCM reads the status of the combination switch at 20ms interval when BCM is controlled at low power consumption control mode.
- BCM operates as follows and judges the status of the combination switch.
  - It operates the transistor on OUTPUT side in the following order: OUTPUT 5 → 4 → 3 → 2 → 1.
  - The voltage waveform of INPUT corresponding to the formed circuit changes according to the operation of the transistor on OUTPUT side if any (1 or more) switches are ON.
  - It reads this change of the voltage as the status signal of the combination switch.
  Fig 2: Identifying Combination Switch Signal Operation
  Courtesy of SUZUKI OF AMERICA CORP.