Scania fault code 2577

Code 2577 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

TMS Transmission Management System Coupling sleeve for second and crawl gear gears The position sensor indicates that the coupling sleeve has moved from second gear position to neutral position without the solenoid valve for crawl mode having been activated. Read explanation → BMU Battery Management Unit Fault in CAN communication with BMU control unit D CAN message error between BMU control unit A and BMU control unit D. Read explanation →