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Home >> Jeep >> 2014 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Body Control Module (BCM) - DTCS B182C-12 To U1433-24 >> Diagnosis And Testing >> B2335-15-Horn Control - Circuit Short To Battery Or Open >> Theory Of Operation

Theory Of Operation

The Body Control Module (BCM) receives the network communication message from the Steering Control Module indicating horn operation is requested. The BCM provides a voltage output through the horn relay control circuit, which connects to the coil side of the Horn Relay.

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