BMW X5
P0423
The P0423 code indicates an issue with the heated catalytic converter (HCAT) temperature sensor circuit in the BMW X5 G05 (2019-2024). This code typically suggests that the sensor is either malfunctioning or that there is a problem in the circuit wiring.
1 SolutionP-CodePowertrain
P
Error Code Type
Powertrain
Symptoms
5 common
- •Check engine light illuminated
- •Poor fuel economy
- •Reduced engine performance
- +2 more
Most Affected Generations
1 generation
G05
1
Severity Levels
1 level
medium
1
Quick Facts
1
Total Solutions
0
Affected Components
5
Common Symptoms
1
Generations
All Solutions
Showing 1 of 1 solution for error code P0423 across all generations.