System Operation

Push-Button Start - with Intelligent Access (IA)

System Operation

System Diagram





Network Message Chart

Module Network Input Messages - BCM (Body Control Module)






OFF

To enter OFF mode, press the start/stop button without pressing the brake pedal while the vehicle is in ON mode or the engine is running. The IA (Intelligent Access) key does not have to be in the vehicle to achieve OFF mode. However, the IA (Intelligent Access) key must be present to achieve any other ignition mode.

When the engine is running and any one of the vehicle doors is opened and then closed, the presence of an IA (Intelligent Access) key is determined. If the IA (Intelligent Access) key is not present, the message center displays Key Not Detected to alert the driver that the IA (Intelligent Access) key is not present.

ON

To enter ON mode, with the correct IA (Intelligent Access) key inside the vehicle, press the start/stop switch for a minimum of one second without pressing the brake pedal. Once the BCM (Body Control Module) and RFA (Remote Function Actuator) module indicate that the correct IA (Intelligent Access) key is present inside the vehicle and the BCM (Body Control Module) has detected the start/stop switch input without the BPP (Brake Pedal Position) input (automatic transmission) or CPP (Clutch Pedal Position) input (manual transmission), the BCM (Body Control Module) activates the ignition and accessory relays. The BCM (Body Control Module) also sends the ignition mode message to the other modules over the MS-CAN (Medium Speed Controller Area Network).

Once the ignition has entered ON mode, the indicator in the start/stop switch illuminates and the module controlled indicators in the IPC (Instrument Panel Cluster) momentarily illuminate to prove they are functioning correctly. REFER to Prove-Out .

START

To enter START mode, with the correct IA (Intelligent Access) key inside the vehicle, press and hold the brake pedal, then press and release the start/stop switch. Once the BCM (Body Control Module) and RFA (Remote Function Actuator) module indicate that the correct IA (Intelligent Access) key is present inside the vehicle and the BCM (Body Control Module) has detected the start/stop switch input without the BPP (Brake Pedal Position) input (automatic transmission) or CPP (Clutch Pedal Position) input (manual transmission), the BCM (Body Control Module) activates the ignition relay. The BCM (Body Control Module) also sends the ignition mode message to the other modules over the MS-CAN (Medium Speed Controller Area Network).

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