Safe to driveEnough to reach the yard
J1939 code SPN 2630. Below — how the fault is worded at the factory by MAZ, SITRAK and YaMZ, and what the second half of the code (FMI) means in the standard.
| FMI 0 | Charge air cooler fault - Plausibility error. Blink code: 6-1-3. Repair: Check the charge air cooler. |
| FMI 3 | Temperature sensor voltage downstream of the low-pressure intercooler above the upper limit. Scan tool code: P007A. Effect: Torque may be limited. |
| FMI 4 | Temperature sensor voltage downstream of the low-pressure intercooler below the lower limit. Scan tool code: P007A. Effect: Torque may be limited. |
| FMI 12 | Charge air cooler downstream temperature sensor deviates too much from the other temperature sensors. Scan tool code: P007A. Effect: Fan and warm-up control may misbehave. |
| FMI 15 | Charge air cooler downstream temperature sensor failed its internal SENT diagnosis. Scan tool code: P007A. Effect: Fan and warm-up control may misbehave. |
| FMI 16 | Charge air temperature after the intercooler above the upper limit. Scan tool code: P007A. Effect: Fan and warm-up control may misbehave. |
| FMI 18 | Charge air temperature after the intercooler below the lower limit. Scan tool code: P007A. Effect: Fan and warm-up control may misbehave. |
| FMI 19 | Too large a difference between the raw and filtered charge air cooler downstream temperature signal. Scan tool code: P007A. Effect: Fan and warm-up control may misbehave. |
| FMI 0 | Charge air cooler faulty (Plausibility error). Blink code: 6-1-3. Repair: Check the charge air cooler. |
Safe to drive. Below — how much time you have and what happens if you keep going.
Boost is not reaching its target: turbo, intercooler or intake. The engine compensates with mixture and runs hotter than usual.
You will lose pull, burn more fuel and add overheating on long climbs. If you hear a whine or a whistle from the turbo, stop — the wheel is breaking up.
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.
That said, the manufacturer flags this code as critical — if in doubt, it is safer to stop and check on the spot.
Inspect the air filter and charge-air hoses: leaks and cracks produce exactly these codes.
Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.