Honda Civic
U0100
The U0100 code in a 10th Generation Honda Civic (2016-2021) indicates a "Lost Communication with ECM/PCM A" error, which suggests a communication failure between the Engine Control Module (ECM) and other modules in the vehicle.
1 SolutionU-CodeNetwork
U
Error Code Type
Network
Components
1 affected
Electrical
Symptoms
6 common
- •Check engine light illuminated
- •Engine may not start or has difficulty starting
- •Erratic engine behavior or misfires
- +3 more
Most Affected Generations
1 generation
FL
1
Top Affected Components
1 component
Electrical
1
Severity Levels
1 level
high
1
Quick Facts
1
Total Solutions
1
Affected Components
6
Common Symptoms
1
Generations
All Solutions
Showing 1 of 1 solution for error code U0100 across all generations.