Scania fault code 2566
Code 2566 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Splitter gear coupling sleeve
The position sensor indicates that the splitter gear coupling sleeve has not moved from low split to neutral even though the high split solenoid valve has been activated.
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BMU Battery Management Unit
Fault in CAN communication with the TMS control unit
CAN message error between BMU control unit A and TMS control unit.
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