Scania fault code 4412
Code 4412 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Injector bank C, short circuit to voltage supply
The engine control unit indicates a short circuit to voltage supply. Injector bank C Engine type Injectors 5-cylinder 1 and 5 6-cylinder 1 and 6 8-cylinder 1 and 6
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BMU Battery Management Unit
Battery module 12, flexible printed circuit board, small internal failure
Internal fault in flexible printed circuit board.
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ZF ZF gearbox
Proportional valve D1 (Y20)
Incorrect signal from proportional valve D1.
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DDU
Internal amplifier -- VBAT supply voltage above Over-voltage threshold
Fault detected by internal amplifier diagnostic
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