Scania fault code 858
Code 858 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
BMU Battery Management Unit
Battery module 5 in propulsion battery, CAN communication interrupted
Communication with battery module 5 in the propulsion battery was interrupted.
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COO Coordinator
Drive mode selector
The control unit interprets signals from the drive mode selector as implausible.
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