Safe to driveUntil the next service
SPN 520844 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 13 | Switch 12-Pack Location 11 — Unexpected switch in 12-pack (MID 5) bottom row position 5 from left (Switch 11 of 12) |
| SPN 520844 FMI 13520844/13 · 520844.13 | calibration out of range |
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.