Door Ajar Warning

The chime producer activates the door ajar audible warning as requested by the body control module (BCM). The BCM sends a class 2 message to the chime producer indicating the chime frequency (medium rate) and duration (4 pulses). The door ajar warning sounds and the appropriate DOOR AJAR indicator illuminates in the driver information center (DIC) when the following occurs:

• The body control module (BCM) determines that a door, driver door, passenger door, left rear door, right rear 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 vehicle is not in park. The IPC receives a class 2 message from the PCM indicating the gear position.
• The vehicle speed is greater than 8.05 km/h (5 MPH). The IPC uses the vehicle speed signal circuit (4000 pulses/mile) from the PCM in order to calculate the vehicle speed.