Key In Ignition Reminder

The radio activates the key in ignition audible warning as requested by the Dash Integration Module (DIM). The DIM 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 DIM receives a class 2 message from the DDM indicating that the door ajar switch is active.
^ The Instrument Panel Integration Module (IPM) (with CJ2) or the HVAC control module (with C67) determines that the ignition key alarm switch is closed (signal circuit is low). The DIM receives a class 2 message from the DDM indicating that the key is in the ignition.

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes