Key-ln-lgnition Warning

The radio activates the key-in-ignition audible warning as requested by the body control module (BCM).

The BCM sends a class 2 message to the radio indicating the chime of a medium rate frequency and a continuous duration. The key-in-ignition warning sounds when the following occurs:

• The ignition switch is OFF.
• The body control module (BCM) determines that the driver door is open and the signal circuit is low.
• The BCM determines that the key-in-ignition switch is closed and the signal circuit is low.