Safe to driveUntil the next service
J1939 code SPN 776. Below — how the fault is worded at the factory by KAMAZ, MAZ and YaMZ, and what the second half of the code (FMI) means in the standard.
| FMI 255 | Implausible torque converter turbine speed |
| FMI 2 | Torque converter turbine speed detection error - Implausible turbine wheel speed signal. Blink code: 2-2-9. Power will be reduced. Repair: You can keep driving. Contact a service centre. |
| FMI 2 | Torque converter turbine speed detection fault (Implausible turbine speed signal). Blink code: 2-2-9. Power will be reduced. Repair: You can keep driving. Contact a service centre. |
| SPN 776 FMI 2776/2 · 776.2 | data erratic or intermittent |
Safe to drive. Below — how much time you have and what happens if you keep going.
A standalone fault with no immediate consequences for driving.
Show the codes at the next service. If a second code from the same system appears, stop putting it off.
Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.