Component Description

Conventional Ignition Switch - without Intelligent Access (IA)

Component Description

Ignition Switch

The ignition switch is a multiple position, rotary switch that is controlled by a lock cylinder and a key. The switch is hard wired to the BCM (Body Control Module), PCM (Powertrain Control Module) and the BSIA (Brake Shift Interlock Actuator).

The key removal inhibit solenoid (also known as the key release interlock actuator) is an electronically controlled solenoid that prevents the ignition lock cylinder from being turned to the OFF position unless the gear selector lever is in the PARK position. The key removal inhibit solenoid is part of the ignition switch.

Body Control Module (BCM)

The BCM (Body Control Module) determines the vehicle ignition mode based on the ignition switch input. The BCM (Body Control Module) communicates the ignition mode to the other modules over the MS-CAN (Medium Speed Controller Area Network) and the HS-CAN (High Speed Controller Area Network). The BCM (Body Control Module) monitors the ignition switch input and the ignition mode outputs, if a fault is detected in the ignition system DTCs (Diagnostic Trouble Codes) are set by the BCM (Body Control Module).

For BCM (Body Control Module) functions, REFER to Body Control Module (BCM) .