Door Ajar Warning

The radio activates the door ajar audible warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency (medium rate) and duration (continuous). The door ajar warning sounds and the appropriate door ajar indicator illuminates in the DIC when the vehicle is not in Park, the vehicle speed is greater than 3 MPH (4.8 KM/H) and the driver door module (DDM) determines that a door is open (signal is low), IPC receives a class 2 message from the DDM indicating the door ajar status. The IPC receives a class 2 message from the PCM indicating the gear position. The IPC uses the vehicle speed signal circuit (4000 pulses/mile) from the PCM in order to calculate the vehicle speed.