Scania fault code 557
Code 557 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
COO Coordinator
Vehicle speed signal
The vehicle speed signal from the vehicle speed sensor or tachograph has been implausibly high. On vehicles without a tachograph, the coordinator receives the vehicle speed signal…
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CUV Visibility system
Dipped beam LH
Current consumption on the control unit output has exceeded 8.5 A for one second.
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BCI
Communication with the instrument cluster (ICL)
Communication with the ICL control unit has ceased.
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