Description And Operation: Operation

WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

The six switches in the two remote radio switch units are normally open, resistor multiplexed momentary switches that are hard wired to the right speed control switch pod. When the right speed control switch senses an input (voltage drop) from any one of the remote radio switches, it communicates the switch status message to the Steering Column Control Module (SCCM) via the LIN Bus (through the clockspring). The SCCM broadcasts switch status information over the CAN bus to the audio system. Electronic circuitry within the audio system is programmed to respond to these remote radio status messages by adjusting the audio settings as requested.

The hardwired circuits between the remote radio switches and the right speed control switch pod may be diagnosed using conventional diagnostic tools and procedures. 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 WIRE SPLICING or REMOVAL or INSTALLATION .

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the remote radio switches or the electronic communication between modules that provide the features of the remote radio switches. The most reliable, efficient and accurate means to diagnose the remote radio switches or the electronic communication related to remote radio switch operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.