Scania fault code 538
Code 538 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
COO Coordinator
Ambient temperature sensor, driver's side
The supply voltage exceeds the threshold value.
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CUV Visibility system
Trailer direction indicator, left-hand
Current consumption on the control unit output has exceeded 6.7 A for one second.
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BCI
Connection, expansion unit
2 or more control unit connections have the same ID pin.
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