Toyota Highlander
C1234
The diagnostic trouble code (DTC) C1234 for a 2020-present Toyota Highlander indicates a problem related to the vehicle's wheel speed sensors or the anti-lock braking system (ABS).
8 SolutionsC-CodeChassis
C
Error Code Type
Chassis
Components
1 affected
Brakes
Symptoms
10 common
- •ABS warning light illuminated on the dashboard
- •Traction control light activated
- •Unstable braking performance or increased stopping distance
- +7 more
Most Affected Generations
2 generations
XU70
7
XU50
1
Top Affected Components
1 component
Brakes
8
Severity Levels
1 level
high
8
Quick Facts
8
Total Solutions
1
Affected Components
10
Common Symptoms
2
Generations
All Solutions
Showing 8 of 8 solutions for error code C1234 across all generations.
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