Standard Starting System

When you press the Keyless Go button (KIN Button), a request is sent to RFHM via the private LIN. Once the RFHM receives the request from the KIN it then looks for the valid key via the Passive Entry Module (PEM) antennas. If the RFHM detects a valid key and if the brake is engaged, then the RFHM sets the ignition position to START/CRANK. The BCM then turns the Ignition status to START/CRANK. Then the BCM sends command to turn the vehicle to the CRANK. For an IGNM (Ignition Node Module) vehicle, when the customer turns the key to Start position the RFHM sets the ignition to START/CRANK. The brake pedal status is not required to start the IGNM vehicle but can be started with brake pedal engaged. The BCM then turns the Ignition status to START/CRANK. Then the BCM sends command to turn the vehicle to the CRANK. The functionality is the same except it is not wirelessly detected. If conditions are correct to start the ECM turn on the high side of the ECM starter relay and turns the Crank Hold Signal to True. If the BCM is still in crank and the Crank Hold is true then the BCM turns on the Low side of the BCM Starter relay and the engine will start cranking. Once the engine started the ECM deactivates the double start over ride. The BCM will then deactivate the starter either when the engine starts or the maximum time has been reach for the tip start (10 sec for Gas and 25 sec for diesel). The RFHM changes the ignition position to RUN if the start type is TIP start or the 5 second time expires or the engine controller indicates the vehicle is not in park or neutral The engine can be manually shut down by the driver with speeds over 5 MPH in any gear.