Chime Warning System

WARNING: This page is about a different car, the 2020 Chrysler 300 and 2019 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

A chime warning system is standard factory-installed equipment. The chime warning system uses an electromechanical transducer that is soldered to the electronic circuit board inside of the Instrument Panel Cluster (IPC) to provide audible indications of various vehicle conditions that may require the attention of the vehicle operator or occupants.

The electromechanical transducer generates beep tones, chime tones and click tones to emulate the sounds associated with conventional turn signal and hazard warning flasher operation. The microcontroller-based IPC utilizes electronic chime request messages received from other Electronic Control Units (ECUs) in the vehicle over the Controller Area Network (CAN) data bus to monitor many sensors and switches throughout the vehicle. In response to those inputs, the circuitry and programming of the IPC allow it to control the audible outputs that are produced through its on-board transducer.

The IPC is capable of producing the following audible outputs:

Slow Rate Repetitive Click - Repeated click tones that are issued at a slow rate of about 90 clicks per minute.
Fast Rate Repetitive Click - Repeated click tones that are issued at a fast rate of more than about 180 clicks per minute.
Single Chime Tone - A single chime tone.
Slow Rate Repetitive Chime - Repeated chime tones that are issued at a slow rate of about 50 chimes per minute.
Fast Rate Repetitive Chime - Repeated chime tones that are issued at a fast rate of about 180 chimes per minute.

Hardwired circuitry connects the IPC and the various chime warning system switch and sensor inputs to their modules and to each other through the electrical system of the vehicle. These hardwired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the IPC through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. For proper wire repair, and connector repair procedures. Refer to STANDARD PROCEDURE , REMOVAL , and INSTALLATION .

The IPC chime warning system circuits and components cannot be adjusted or repaired. If the IPC circuitry, the on-board transducer or the relay are damaged or ineffective, the IPC unit must be replaced.