Safe to driveUntil the next service
SPN 523353 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 and YaMZ, and what the second half of the code (FMI) means.
| FMI 11 | Bank 2 injectors: warning |
| FMI 12 | Bank 2 injectors: warning |
| FMI 11 | Injector group 2 driver circuit fault - Depends on calibration. Blink code: 1-5-2. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness. |
| FMI 12 | Injector group 2 driver circuit fault - Open circuit. Blink code: 1-5-2. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness. |
| FMI 11 | Injector group 2 driver circuit fault (Calibration dependent). Blink code: 1-5-2. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness. |
| FMI 12 | Injector group 2 driver circuit fault (Open circuit). Blink code: 1-5-2. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness. |
| SPN 523353 FMI 11523353/11 · 523353.11 | root cause not known |
| SPN 523353 FMI 12523353/12 · 523353.12 | faulty device or component |
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.