Scania fault code 1554
Code 1554 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Position sensor for freewheeling retarder, short circuit or open circuit
The control unit indicates that the position sensor voltage supply is short-circuited to earth or that there is an open circuit in the cable harness.
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BMU Battery Management Unit
Contactor unit R125, current lower than requested
Charging cancelled. Measured current has been lower than requested and lower than consumed during charging.
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