9E0003 Mercedes Fault Code :
Read the description of 9E0003 in ACM2TuEURO and the engine lights up for ACM2TuEURO TuEURO Aftertreatment Control Module code, there are some possible causes for it.
The signal line 'Terminal 15' of component '17A03: Exhaust aftertreatment control unit (ACM)' has a short circuit to ground.