Scania fault code 4210
Code 4210 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Outdoor temperature sensor 1 T27 or outdoor temperature sensor 2 T163
The difference between the outdoor temperature sensors is too great.
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EMU
Heater H40, serious internal fault
The control unit states that a serious internal fault has occurred.
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BMU Battery Management Unit
The current level is too high
The system's current level has exceeded the safety limit.
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DDU
External amplifier, channel 4, short circuit to voltage supply
The external amplifier has measured a voltage that indicates a short circuit to battery voltage.
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