Toyota Highlander
B1421
The B1421 HVAC code in a Toyota Highlander indicates a malfunction related to the air conditioning system, specifically concerning the air mix damper motor or its circuit. This issue may lead to improper temperature control inside the vehicle.
2 SolutionsB-CodeBody
B
Error Code Type
Body
Components
1 affected
HVAC
Symptoms
9 common
- •Air conditioning not reaching desired temperature
- •Inconsistent airflow from vents
- •AC system not blowing cold air
- +6 more
Most Affected Generations
1 generation
XU70
2
Top Affected Components
1 component
HVAC
2
Severity Levels
1 level
medium
2
Quick Facts
2
Total Solutions
1
Affected Components
9
Common Symptoms
1
Generations
All Solutions
Showing 2 of 2 solutions for error code B1421 across all generations.
Related Pages
Explore related error codes and pages