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-B, PCM and the BSIA.

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-B determines the vehicle ignition mode based on the ignition switch input. The BCM-B communicates the ignition mode to the other modules over the MS-CAN and the HS-CAN. The BCM-B monitors the ignition switch input and the ignition mode outputs, if a fault is detected in the ignition system DTCs are set by the BCM-B.

For BCM-B functions, REFER to Passive Anti-Theft System (PATS), Without Intelligent Access (IA) , BCM-B.