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SPN 520197 — factory code KAMAZ, MAZ, SITRAK and others

Safe to driveDrivable, but watch it yourself

SPN 520197 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 3Charge air cooler bypass valve
FMI 4Charge air cooler bypass valve
FMI 12Charge air cooler bypass valve

MAZ

FMI 3Charge air cooler bypass valve driver circuit fault - Short to battery positive. Blink code: 2-2-4. Repair: Check the charge air intercooler valve and its wiring.
FMI 4Charge air cooler bypass valve driver circuit fault - Short to ground. Blink code: 2-2-4. Repair: Check the charge air intercooler valve and its wiring.
FMI 12Charge air cooler bypass valve driver circuit fault - Open circuit. Blink code: 2-2-4. Repair: Check the charge air intercooler valve and its wiring.

SITRAK

FMI 4Knock sensor 2 open circuit
FMI 11Engine torque limitation is active. Scan tool code: P1006. Effect: Torque may be limited.

Volvo

FMI 5LCM output current to the lamps is below 500 mA. Open wires between the LCM and the lamps, open wire between the lamps and the ground point, or lamp failure.
FMI 6LCM output current to the lamps is above 5.8 A. Wire shorted to ground between the LCM and the lamps.

YaMZ

FMI 3Charge air intercooler bypass valve driver circuit fault (Short to battery positive). Blink code: 2-2-4. Repair: Check the charge air intercooler valve and its wiring.
FMI 4Charge air intercooler bypass valve driver circuit fault (Short to ground). Blink code: 2-2-4. Repair: Check the charge air intercooler valve and its wiring.
FMI 12Charge air intercooler bypass valve driver circuit fault (Open circuit). Blink code: 2-2-4. Repair: Check the charge air intercooler valve and its wiring.

What FMI means in J1939

SPN 520197 FMI 3520197/3 · 520197.3voltage above normal or shorted high
SPN 520197 FMI 4520197/4 · 520197.4voltage below normal or shorted to ground
SPN 520197 FMI 5520197/5 · 520197.5current below normal or open circuit
SPN 520197 FMI 6520197/6 · 520197.6current above normal or grounded circuit
SPN 520197 FMI 11520197/11 · 520197.11root cause not known
SPN 520197 FMI 12520197/12 · 520197.12faulty device or component

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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