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SPN 520227 — factory code KAMAZ, MAZ, SITRAK and others

Safe to driveDrivable, but watch it yourself

SPN 520227 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 2Input signal type selector switch
FMI 3Input signal type selector switch
FMI 4Input signal type selector switch

MAZ

FMI 2Multifunction switch fault - Invalid switch combination. Blink code: 3-2-7. Repair: Check the multifunction switch and its wiring.
FMI 3Multifunction switch fault - Short to battery positive. Blink code: 3-2-7. Repair: Check the multifunction switch and its wiring.
FMI 4Multifunction switch fault - Short to ground. Blink code: 3-2-7. Repair: Check the multifunction switch and its wiring.

SITRAK

FMI 11ECU internal monitoring reported a fault, function monitoring level (MoF). Scan tool code: P1015.

Volvo

FMI 3Voltage at LCM power input No. 2 (pin PC1 19) is above 30.5 V. Unit supply wire shorted to a higher voltage.
FMI 4Voltage at LCM power input No. 2 is below 7 V. Fuse blown in the battery box or in the fuse holder under the main fuse box. Open wiring between the LCM and the batteries, or wires between the LCM and the batteries shorted to ground.

YaMZ

FMI 2Multifunction switch fault (Invalid switch combination). Blink code: 3-2-7. Repair: Check the multifunction switch and its wiring.
FMI 3Multifunction switch fault (Short to battery positive). Blink code: 3-2-7. Repair: Check the multifunction switch and its wiring.
FMI 4Multifunction switch fault (Short to ground). Blink code: 3-2-7. Repair: Check the multifunction switch and its wiring.

What FMI means in J1939

SPN 520227 FMI 2520227/2 · 520227.2data erratic or intermittent
SPN 520227 FMI 3520227/3 · 520227.3voltage above normal or shorted high
SPN 520227 FMI 4520227/4 · 520227.4voltage below normal or shorted to ground
SPN 520227 FMI 11520227/11 · 520227.11root cause not known

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

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