SPN 131102 — SCR catalyst efficiency below first threshold (Iveco)

Safe to driveDrivable, but watch it yourself

SPN 131102 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 3

SCR catalyst efficiency below first threshold (NOx above first OBD threshold, MIL on)

What FMI means in J1939

SPN 131102 FMI 3131102/3 · 131102.3

voltage above normal or shorted high

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 65769ECU internal supply voltage too high
• SPN 65770ECU internal supply voltage too low
• SPN 65771Atmospheric pressure sensor fault
• SPN 131093Cruise control buttons fault, irreversible
• SPN 131101SCR catalyst thermal ageing limit exceeded
• SPN 131103Boost pressure actuator current out of range
• SPN 131109Main relay fault, afterrun interrupted
• SPN 131112Main relay 1
• SPN 131122Coolant temperature test failed
• SPN 131128Oil pressure too low

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