Ford Mustang
C121C
The C121C code on a 2024 Ford Mustang S650 indicates an issue with the Anti-lock Braking System (ABS) or the Electronic Stability Control (ESC) system, which may affect braking performance and vehicle stability.
1 SolutionC-CodeChassis
C
Error Code Type
Chassis
Components
1 affected
Brakes
Symptoms
5 common
- •ABS warning light illuminated on the dashboard
- •Decreased braking performance or feel
- •Traction control warning light activated
- +2 more
Most Affected Generations
1 generation
S650
1
Top Affected Components
1 component
Brakes
1
Severity Levels
1 level
high
1
Quick Facts
1
Total Solutions
1
Affected Components
5
Common Symptoms
1
Generations
All Solutions
Showing 1 of 1 solution for error code C121C across all generations.