Start the Engine
The remote engine start feature is initiated by first pressing the lock button, then pressing and holding the "START" button within 5 seconds on the remote transmitter. An RF signal from the remote transmitter is received by the body control module, which then sends the request to start the engine to the PCM. At the same time, the body control module authenticates the key for the immobilizer system. The PCM starts the engine and sends feedback to the body control module indicating the status of the engine.