Scania fault code 785
Code 785 is used by 7 different Scania systems. Choose the control unit shown in your diagnostic tool:
BMU Battery Management Unit
Coolant pump (M86), CAN communication fault
CAN message from coolant pump has not been sent.
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COO Coordinator
Switch, vehicle rear level adjustment
All communication on the CAN bus for camera and short-range radar is interrupted.
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MBS
Sensor for upper rear engine compartment door, open circuit
The voltage supply to the control unit input for the rear upper engine compartment hatch sensor is 12 V. This indicates an open circuit.
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PCS
CAN timeout
The sequence check does not match the number of messages received.
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ICL Instrument Cluster
Communication with the visibility system (VIS)
No CAN messages from the visibility system's CUV control unit.
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CMS
Electrohydraulic power steering pump
The electrohydraulic power steering pump (EHS) indicates reduced functionality.
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DCU
Micro switch rear door leaf, open circuit in closed position
The measured voltage on the 3-phase input indicates an open circuit. This occurs when the voltage is approximately 8 – 16 V with a voltage supply of 24 V to the door control unit.
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