Toyota Highlander
P0401
The P0401 code indicates a problem with the Exhaust Gas Recirculation (EGR) system in a 2020-present Toyota Highlander XU70, specifically that the EGR flow is insufficient.
2 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
1 affected
Exhaust System
Symptoms
8 common
- •Check engine light illuminated
- •Poor engine performance or rough idle
- •Decreased fuel economy
- +5 more
Most Affected Generations
1 generation
XU70
2
Top Affected Components
1 component
Exhaust System
2
Severity Levels
1 level
medium
2
Quick Facts
2
Total Solutions
1
Affected Components
8
Common Symptoms
1
Generations
All Solutions
Showing 2 of 2 solutions for error code P0401 across all generations.
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