spn-599-fmi-12 Mercedes Fault Code :
Read the description of spn-599-fmi-12 in KAMA3-5490 and the engine lights up for KAMA3 5490 Fault Codes code, there are some possible causes for it.
Fault Location
Cruise Control Switch CC- (Set + Coast)
Fault Description
Both Switches CC- and CC+ Closed
Fault PIN
18/04 and 18/05