Scania fault code 861
Code 861 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
BMU Battery Management Unit
Battery module 8 in propulsion battery, CAN communication interrupted
Communication with battery module 8 of the propulsion battery interrupted.
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COO Coordinator
Secondary wake-up signal
The control unit's secondary wake-up signal is shorted to voltage.
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COMMUNICATOR Communicator (C200 / C300 / C400)
Secondary wake-up bus is short circuit to battery
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