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Home >> Jeep >> 2017 >> Compass Limited >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> (Audio (Radio) (ETM) - Electrical Diagnostics) - Mp >> DTC Troubleshooting >> B140C-13-Rear Right Audio Speaker Output-Circuit Open >> Theory Of Operation

Theory Of Operation

The radio is provided with a fused Battery and Ground circuit. When the Ignition is turned on, the BCM transmits a wake up signal over the CAN bus to the Radio. The Radio monitors the Speaker circuits for electrical failures.