spn-91-fmi-3 Mercedes Fault Code :
Read the description of spn-91-fmi-3 in KAMA3-5490 and the engine lights up for KAMA3 5490 Fault Codes code, there are some possible causes for it.
Fault Location
Accelerator Pedal (AFPS or J1939)
Fault Description
Voltage too High
Fault PIN
21/11