DTC B2801-00: MM CAN Signal Line Error: General Description

The CAN communication consists of a twisted pair of network wires. One line is CAN low line and the other line is CAN high line. The CAN lines pass through the head unit (AVN or audio) and AMP modules. This allows the TMU to communicate with each module. Through MM-CAN, TMU is communicating with head unit to make a display and sound in the vehicle.