spn-1004-fmi-3 Mercedes Fault Code :
Read the description of spn-1004-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
Output Relay 4 (REL 4)
Fault Description
Open Circuit
Fault PIN
18/01