Home›Codes›SPN 520195

SPN 520195 — factory code KAMAZ, MAZ, SITRAK and others

Safe to driveDrivable, but watch it yourself

Updated: 2026-11-10

SPN 520195 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 engine (J1939)

FMI 15EGR valve: positive deviation

MAZ

FMI 15EGR system control error - Positive deviation above normal. Blink code: 6-1-1. Repair: Check the EGR actuators and sensors and their wiring.

SITRAK

FMI 2Implausible temperature sensor reading at cold start, combination 0. Scan tool code: P1000. Effect: Fan and warm-up control may misbehave.
FMI 8Error of the first fresh air temperature sensor at cold start. Scan tool code: P1000. Effect: Fan and warm-up control may misbehave.

Volvo

FMI 5LCM output current to the lamp is below 0.1 A. Open supply wire between the LCM and the lamp, open wire between the lamp and the ground point, or lamp failure.
FMI 6LCM output current to the lamp is above 3.1 A. Wire shorted to ground between the LCM and the lamp. Possibly several lamps are connected, or a higher-wattage lamp is installed.

YaMZ

FMI 15EGR system control fault (Positive deviation above normal). Blink code: 6-1-1. Repair: Check the EGR actuators and sensors and their wiring.

What FMI means in J1939

SPN 520195 FMI 2520195/2 · 520195.2data erratic or intermittent
SPN 520195 FMI 5520195/5 · 520195.5current below normal or open circuit
SPN 520195 FMI 6520195/6 · 520195.6current above normal or grounded circuit
SPN 520195 FMI 8520195/8 · 520195.8abnormal frequency or pulse width
SPN 520195 FMI 15520195/15 · 520195.15above normal — low severity

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

Related codes

Makes with this code

KAMAZMAZYaMZSITRAKVolvo

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