Ford F-150
U1120
The U1120 code indicates a "Lost Communication with Vehicle Speed Module" on a 2015-2020 Ford F-150, which may result from various electrical or communication issues within the vehicle's network.
1 SolutionU-CodeNetwork
U
Error Code Type
Network
Components
1 affected
Electrical
Symptoms
5 common
- •Check engine light illuminated
- •Erratic speedometer readings
- •Inaccurate fuel economy display
- +2 more
Most Affected Generations
1 generation
P558
1
Top Affected Components
1 component
Electrical
1
Severity Levels
1 level
medium
1
Quick Facts
1
Total Solutions
1
Affected Components
5
Common Symptoms
1
Generations
All Solutions
Showing 1 of 1 solution for error code U1120 across all generations.