Lock/Unlock Using Door Request Switch: Notes

Lock/unlock the doors using door request switch as shown below.

1. Push door request switch incorporated in outside handle of driver or passenger side door.
2. Keyless start control module (1) activates mid inside antenna (2) and rear inside antenna (3) to transmit within the vehicle compartment and trunk room.
3. When keyless start control module determines that remote controller (4) is not in vehicle compartment and trunk room, it activates the outside antenna of door in which door request switch was pushed and sends request signal to remote controller.
4. The remote controller that receives request signal sends ID code to keyless start control module via external antenna which acts as keyless entry/TPMS receiver (5).
5. Keyless start control module compares ID code sent from remote controller with ID code registered in keyless start control module. If ID codes match, keyless start control module outputs door lock/unlock request signal (depending on door lock switch state) to BCM (6) through CAN communication.
6. BCM activates door lock actuator.
   Fig 1: Keyless Start System Door Lock Function Diagram

   Courtesy of SUZUKI OF AMERICA CORP.