SPN 131112 — Main relay 1 (Iveco)

Safe to driveDrivable, but watch it yourself

SPN 131112 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by Iveco, and what the second half of the code (FMI) means.

Iveco

FMI 4

Main relay 1 (engine brake decompression valve) short circuit to ground

What FMI means in J1939

SPN 131112 FMI 4131112/4 · 131112.4

voltage below normal or shorted to ground

Can I keep driving

Safe to drive. Below — how much time you have and what happens if you keep going.

What happens if you keep driving

Time you have: Drivable, but watch it yourself

This is an electrical fault: an open, a short or a bad contact in the sensor circuit. The value it measures is most likely fine.

You can drive. But until the circuit is repaired this system runs blind and cannot warn you about a real failure.

Nearby: other

• SPN 131093Cruise control buttons fault, irreversible
• SPN 131101SCR catalyst thermal ageing limit exceeded
• SPN 131102SCR catalyst efficiency below first threshold
• SPN 131103Boost pressure actuator current out of range
• SPN 131109Main relay fault, afterrun interrupted
• SPN 131122Coolant temperature test failed
• SPN 131128Oil pressure too low
• SPN 131130Oil temperature too high
• SPN 131146Engine compartment stop button stuck
• SPN 131167Info: long-term injection timing fault present

Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.