Scania fault code 12551
Code 12551 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Pedal positions
The status of the kick-down switch is ACTIVE although the accelerator pedal value is not 100%.
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EMU
VCB Fan A IGBT drive circuit undervoltage
VCB fan A internal diagnostics report that the IGBT drive circuit voltage is too low.
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