System Operation: Start

To enter START mode, with a valid passive key inside the vehicle, press and hold the brake pedal. Then press and release the ignition switch. Once the BCM  and RTM  indicate a valid passive key is present inside the vehicle and the BCM  has detected the ignition switch input with the stoplamp switch input, the BCM  activates the internal run/start relay and the BJB  run/start relay, providing ignition voltage to the various vehicle systems and modules. At this time, the PCM  also receives an input from the ignition switch, initiating a sequence that ends with the starter motor activating. The BCM  communicates the ignition mode to the other modules by sending an ignition status message over the CAN  .

The engine can be started from any ignition mode. Once the ignition has entered START mode, the indicator in the ignition switch illuminates.

When the ignition switch is placed in the start position, the BCM  receives on and start voltage inputs and the PCM  receives a start voltage input from the ignition switch. The BCM  communicates the ignition mode to the other modules by sending an ignition status message over the CAN  .