Scania fault code 3042
Code 3042 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Fuel injection without request in cylinder 2
The control unit interpreted combustion without sending a request for fuel injection.
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BMU Battery Management Unit
Positive contactor, open incorrectly
The contactor to the positive terminal of the propulsion battery is open incorrectly.
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