Key-In-Ignition Warning
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
The instrument panel cluster (IPC) activates the key-in-ignition audible warning as requested by the body control module (BCM). The BCM sends a GMLAN message to the IPC indicating the chime frequency (medium rate) and duration (continuous). The key-in-ignition warning sounds when the following occurs:
- The ignition switch is OFF.
- The BCM determines that the driver door is open (signal circuit is low).
- The BCM determines that the ignition key alarm switch is closed (signal circuit is low).