Start-Stop Switch
The start/stop switch is a momentary contact switch that is hardwired to the RFA module, BCM , and the PCM . When the switch is pressed, it signals the RFA module, BCM , and the PCM that there is a request to either switch the ignition ON, OFF or start the vehicle. The start/stop switch is connected to both the RFA module and BCM as a backup in case of a failure.