Scania fault code 3163
Code 3163 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMU
Contactor unit R126, negative contactor, contactor fixed in open position
The control unit indicates that the negative contactor is stuck in the open position.
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BMU Battery Management Unit
Negative contactor, stuck in the open position
The control unit has interpreted that the contactor is stuck in the open position when the closed position has been requested.
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