SPN 523351 — factory code KAMAZ, MAZ and YaMZ

Safe to driveUntil the next service

SPN 523351 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.

KAMAZMAZYaMZ

KAMAZ

FMI 11	Bank 1 injectors: warning
FMI 12	Bank 1 injectors: warning

MAZ

FMI 11	Injector group 1 driver circuit fault - Depends on calibration. Blink code: 1-5-1. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness.
FMI 12	Injector group 1 driver circuit fault - Open circuit. Blink code: 1-5-1. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness.

YaMZ

FMI 11	Injector group 1 driver circuit fault (Calibration dependent). Blink code: 1-5-1. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness.
FMI 12	Injector group 1 driver circuit fault (Open circuit). Blink code: 1-5-1. The engine will not start. Power will be reduced. Repair: Check the injector connectors and harness.

What FMI means in J1939

SPN 523351 FMI 11523351/11 · 523351.11	root cause not known
SPN 523351 FMI 12523351/12 · 523351.12	faulty device or component

Can I keep driving

Safe to drive. Below — how much time you have and what happens if you keep going.

What happens if you keep driving

Time you have: Until the next service

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.

Nearby: other

• SPN 523000Generic Check for implausible EOL Parameters
• SPN 523110Safety Monitor for Valve Combi Function
• SPN 523218
• SPN 523222
• SPN 523350
• SPN 523352
• SPN 523353
• SPN 523354
• SPN 523355
• SPN 523420

Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.