Scania fault code 4246
Code 4246 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMU
Contactor unit R126, pre-charge resistance contactor, voltage class B to vehicle outside range
The UI sensor reports voltage outside the approved range.
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DDU
Device connected to passenger side USB port is not responding
The USB port cannot communicate with the connected USB device.
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