Do not driveTo the nearest safe stop
SPN 4014 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 Renault Trucks, and what the second half of the code (FMI) means.
| FMI 2 | High Current Auxiliary Load Switch 1 — High Current Load Switch Error |
| FMI 1 | Proportional solenoid valve, current too high. Repair: Check the proportional solenoid valve (20-100 kOhm), check the wiring between the unit and the component (4, 3), check the control unit. |
| FMI 2 | Proportional solenoid valve, current too low. Repair: Check the proportional solenoid valve (20-100 kOhm), check the wiring between the unit and the component (4, 3), check the control unit. |
| SPN 4014 FMI 14014/1 · 4014.1 | data below normal range (most severe level) |
| SPN 4014 FMI 24014/2 · 4014.2 | data erratic or intermittent |
Do not drive. Stop as soon as it’s safe to do so — don’t keep going.
The code is flagged critical: the manufacturer considers it unsafe to keep driving without checking.
This code alone cannot say what will fail next, so stop at the first safe opportunity and look at it on the spot.
That said, the manufacturer flags this code as critical — if in doubt, it is safer to stop and check on the spot.
Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.