Do not driveTo the nearest safe stop
J1939 code SPN 3414. Below — how the fault is worded at the factory by MAZ and YaMZ, and what the second half of the code (FMI) means in the standard.
| FMI 1 | Door open sensor error - Door stuck open. Blink code: 1-2-6. Power will be reduced. Repair: Check the sensor and its wiring. |
| FMI 8 | Door open sensor error - Door stuck open. Blink code: 1-2-6. Power will be reduced. Repair: Check the sensor and its wiring. |
| FMI 1 | Door open sensor fault (Door stuck open). Blink code: 1-2-6. Power will be reduced. Repair: Check the sensor and its wiring. |
| FMI 8 | Door open sensor fault (Door stuck open). Blink code: 1-2-6. Power will be reduced. Repair: Check the sensor and its wiring. |
| SPN 3414 FMI 13414/1 · 3414.1 | data below normal range (most severe level) |
| SPN 3414 FMI 83414/8 · 3414.8 | abnormal frequency or pulse width |
Do not drive. Stop as soon as it’s safe to do so — don’t keep going.
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.
Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.