Key In Ignition Reminder

The radio activates the key-in-ignition audible warning as requested by the Rear Integration Module (RIM). The RIM sends a class 2 message to the radio 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 Driver Door Module (DDM) determines that the driver's door is open (signal circuit is low). The RIM receives a class 2 message from the DDM indicating the door ajar status.
^ The Instrument Panel Integration Module (IPM) determines that the key-in-ignition switch is open (signal circuit is high). The IPM receives a class 2 message from the RIM indicating the key-in-ignition status.