Genesis G70
U0420
The U0420 code indicates an invalid data received from the vehicle's Body Control Module (BCM) in a Genesis G70 IG (2017-2023). This often points to communication issues between modules or a fault in the BCM itself.
1 SolutionU-CodeNetwork
U
Error Code Type
Network
Components
1 affected
Electrical
Symptoms
5 common
- •Check engine light illuminated
- •Malfunctioning electronic features (e.g., power windows, locks)
- •Inconsistent warning messages on the dashboard
- +2 more
Most Affected Generations
1 generation
IG
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 U0420 across all generations.