Safe to driveUntil the next service
SPN 4206 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by Mercedes-Benz and SITRAK, and what the second half of the code (FMI) means.
| FMI 2 | TSC1 Message Counter indicates lost Messages |
| FMI 12 | Timeout of the TSC1VE CAN frame. Effect: Loss of communication with the modules, some functions are disabled. |
| SPN 4206 FMI 24206/2 · 4206.2 | data erratic or intermittent |
| SPN 4206 FMI 124206/12 · 4206.12 | 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.