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SPN 520225 — factory code KAMAZ, MAZ, SITRAK and others

Do not driveTo the nearest safe stop

SPN 520225 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by KAMAZ, MAZ, SITRAK, Volvo and YaMZ, and what the second half of the code (FMI) means.

KAMAZMAZSITRAKVolvoYaMZ

KAMAZ

FMI 11Injection count limited (vehicle may continue operating)
FMI 15Injection count limited (vehicle may continue operating)
FMI 16Injection count limited (vehicle may continue operating)

MAZ

FMI 0Fuel injection count limited - Injection count limited by injection duration. Blink code: 1-5-5. Power will be reduced.
FMI 11Fuel injection count limited - Injection count limited by ECU calibration. Blink code: 1-5-5. Power will be reduced.
FMI 15Fuel injection count limited - Injection count limited by fuel balance. Blink code: 1-5-5. Power will be reduced.
FMI 16Fuel injection count limited - Injection count limited by air balance. Blink code: 1-5-5. Power will be reduced.

SITRAK

FMI 11ECU internal monitoring reported a fault, function monitoring level (MoF). Scan tool code: P1013.

Volvo

FMI 12Lever switch held for more than 60 seconds. Switch damaged, or wiring between the LCM and the switch shorted to ground.

YaMZ

FMI 0Fuel injection count limited (Number of fuel injections limited by injection time). Blink code: 1-5-5. Power will be reduced.
FMI 11Fuel injection count limited (Number of fuel injections limited by ECU calibration). Blink code: 1-5-5. Power will be reduced.
FMI 15Fuel injection count limited (Number of fuel injections limited by fuel balance). Blink code: 1-5-5. Power will be reduced.
FMI 16Fuel injection count limited (Number of fuel injections limited by air balance). Blink code: 1-5-5. Power will be reduced.

What FMI means in J1939

SPN 520225 FMI 0520225/0 · 520225.0data above normal range (most severe level)
SPN 520225 FMI 11520225/11 · 520225.11root cause not known
SPN 520225 FMI 12520225/12 · 520225.12faulty device or component
SPN 520225 FMI 15520225/15 · 520225.15above normal — low severity
SPN 520225 FMI 16520225/16 · 520225.16above normal — moderate severity

Can I keep driving

Do not drive. Stop as soon as it’s safe to do so — don’t keep going.

What happens if you keep driving

Time you have: To the nearest safe stop

The code is flagged critical: the manufacturer considers it unsafe to keep driving without checking.

This code alone cannot say what will fail next, so stop at the first safe opportunity and look at it on the spot.

That said, the manufacturer flags this code as critical — if in doubt, it is safer to stop and check on the spot.

Nearby: other

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