Scania fault code 805
Code 805 is used by 6 different Scania systems. Choose the control unit shown in your diagnostic tool:
BMU Battery Management Unit
The level monitor for the inverter E82 (MGU) and direct current converter E84 (DCC) indicates low coolant level
Low coolant level in the inverter and direct current converter cooling system. Signal from the level monitor.
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COO Coordinator
Voltage supply, relay 19
Signal (61) from relay 19 is interrupted.
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MBS
Refrigerant system passenger area, pressure too low
The pressure sensor for the climate system reports too high a pressure.
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DDU
Missing CAN-messages from DCP
No CAN message recieved from Driver interaction Control Pane (DCP). Only stored when ignition is ON.
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CMS
Solenoid valve for differential lock, 2nd rear axle
Solenoid valve V1005 controlling the differential lock for the second rear axle, connected on PWM output 4 (Pin: signal A16, earth A18) has overloaded.
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DCU
Micro switch rear door leaf, door lock, open circuit
The measured voltage on the input pin, 3-phase input, to the door control unit indicates an open circuit. This occurs when the measured voltage is approx. 8 – 16 V and the supply v…
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