Safe to driveDrivable, but watch it yourself
SPN 520199 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.
| FMI 2 | Drag torque control (DCS): implausible request |
| FMI 2 | Load/resistance torque control module error - Implausible DSC command. Blink code: 2-2-8. Repair: Check the torque monitoring unit and its wiring. Check the CAN line connection to the other CAN devices. |
| FMI 11 | Mismatch between accelerator pedal channel 1 and channel 2 signals |
| FMI 5 | LCM 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 6 | LCM output current to the lamps is above 5.8 A. Wire shorted to ground between the LCM and the lamps. |
| FMI 2 | Resistance torque control system fault (Implausible DSC command). Blink code: 2-2-8. Repair: Check the torque monitoring unit and its wiring. Check the CAN line connection to the other CAN devices. |
Safe to drive. Below — how much time you have and what happens if you keep going.
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.
Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.