Park Brake Warning

The radio activates the park brake audible warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency of a medium rate and at a continuous duration. The park brake warning sounds and the BRAKE indicator illuminates when the following occurs:

• The ignition is on.
• The vehicle is not in park. The IPC receives a class 2 message from the PCM indicating the gear position.
• The IPC determines that the park brake is engaged and the signal circuit is low.