Ignition Switch: Description and Operation: Overview

Conventional Ignition Switch - without Intelligent Access (IA)

Overview

The conventional ignition switch is controlled by the ignition lock cylinder and key. The ignition lock cylinder and ignition switch are connected mechanically, turning the lock cylinder places the switch into the desired position. The available ignition switch positions are:
- OFF
- ACC
- ON
- START

When placed in ACC and ON, the ignition switch provides voltage inputs to the BCM (Body Control Module).

When placed in START, the ignition switch provides voltage inputs to the PCM (Powertrain Control Module).