C003F: Wheel Speed Sensors Rotation Direction Correlation
Standardized SAE J2012 code · C00xx codes
Safety-critical system. Faults in airbags, brakes, steering or high-voltage components can put people at risk. Follow the manufacturer's service information and safety procedures, or have the vehicle checked by a qualified workshop.
What does C003F mean?
Wheel speed sensors disagree on rotation direction — typically detected when reversing. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
- High Sensor swapped or wired backwards
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of C003F on the same make and model first.
C003F in the community
Ask about C003FNo one has posted about C003F yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your C003F problem