Volkswagen Passat
U0101
The Volkswagen Passat B8 (2015-2022) is experiencing a U0101 communication error, indicating a loss of communication with the engine control module (ECM).
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
- •Poor acceleration or loss of power
- +3 more
Most Affected Generations
1 generation
B8
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 U0101 across all generations.