Key-in-Ignition Warning

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The chime producer activates the key-in-ignition audible warning as requested by the IPC. The IPC sends a class 2 message to the chime producer indicating the chime frequency and duration (continuous). The key-in-ignition warning sounds when the following occurs:

The ignition switch is OFF.
The body control module (BCM) determines that the driver's door is open and the signal circuit is low. The IPC receives a class 2 message from the BCM indicating the door ajar status.
The BCM determines that the key-in-ignition switch is closed and the signal circuit is low. The IPC receives a class 2 message from the BCM indicating the key-in-ignition status.