Component Description

Push-Button Start - with Intelligent Access (IA)

Component Description

Body Control Module (BCM)

The BCM (Body Control Module) determines the vehicle ignition mode based on the start/stop switch input, the BPP (Brake Pedal Position) input (automatic transmission) or CPP (Clutch Pedal Position) input (manual transmission) and RFA (Remote Function Actuator) module messages. The BCM (Body Control Module) communicates the ignition mode to the other modules over the MS-CAN (Medium Speed Controller Area Network). The BCM (Body Control Module) monitors the start/stop switch input and the ignition mode outputs, if a fault is detected in the ignition system, DTCs (Diagnostic Trouble Codes) are set in the BCM (Body Control Module).

REFER to Body Control Module (BCM).

Remote Function Actuator (RFA) Module

REFER to Remote Function Actuator (RFA) .

Brake Pedal Position (BPP) Switch

The BPP (Brake Pedal Position) switch (also known as the stoplamp switch) is a dual contact switch. One set of contacts is normally open and receives voltage at all times. The other set of contacts is normally closed and is connected to ground.

When the normally open contacts close, the voltage is sent to the BCM (Body Control Module) and PCM (Powertrain Control Module).

When the normally closed contacts open, the ground circuit to the PCM (Powertrain Control Module) is momentarily interrupted.

Start-Stop Switch

The start/stop switch is a momentary dual contact switch that is hardwired to the BCM (Body Control Module) and the PCM (Powertrain Control Module).

Both sets of contacts are normally open and receive voltage at all times. When the start/stop switch is pressed, one set of contacts supplies voltage to the BCM (Body Control Module) only. The second set of contacts supply voltage to the BCM (Body Control Module), RFA (Remote Function Actuator) module and the PCM (Powertrain Control Module).

The start/stop switch has an LED (Light-emitting Diode), that is used for switch illumination.