Scania fault code 1557
Code 1557 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Freewheeling retarder position sensor - Short circuit to ground
Read explanation →
BMU Battery Management Unit
Contactor unit electrical power take-off, open circuit
When the electrical power take-off was connected, the voltage to the power take-off increased abnormally quickly.
Read explanation →
ELC Electronically controlled air suspension
Sensor signal from roll-over guard
Open circuit or too low current consumption in circuit.
Read explanation →