Scania fault code 853
Code 853 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:
VDT
Internal fault
Short circuit to ground.
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COO Coordinator
Communication with the EST control unit
Communication between the coordinator and EST control unit is interrupted.
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MBS
Auxiliary heater, overvoltage
The auxiliary heater has detected overvoltage.
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CMS
Electrical air compressor system, fault in CAN message
The chassis management system control unit has interpreted an incorrect or missing CAN message from the electric air compressor system.
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