Scania fault code 4242
Code 4242 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMU
Heater H40, communication error
One or more CAN messages are missing.
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BMU Battery Management Unit
UI sensor for propulsion battery, short circuit to voltage supply
The control unit indicates a short circuit to voltage supply on the pins for earthing UI sensor T282.
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GSC
High pressure solenoid valve
Incorrect level on current signal through the solenoid valve coil.
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