Scania fault code 900
Code 900 is used by 5 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Temperature sensor T217, low temperature at engine start
The temperature sensor reports a temperature lower than expected.
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BMU Battery Management Unit
Fan M40 for cooling system, fault
The fan does not work.
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VDT
Automatic neutral
Invalid configuration.
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COO Coordinator
ABS control for trailer
A fault has been detected in the ABS control or EBS control system for trailers.
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MBS
Valve for primary heating circuit in roof area, short circuited
The voltage of the pin to the valve for primary heating circuit in the roof space is outside the valid values.
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