Safe to driveUntil the next service
SPN 520461 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by International, and what the second half of the code (FMI) means.
| FMI 9 | Switch 6-Pack #1 Data Link — Switch 6-Pack #1 Data Link Comm. Failure |
| SPN 520461 FMI 9520461/9 · 520461.9 | abnormal update rate |
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.