C05AA: ABS Pump Motor Temperature Too High
Standardized SAE J2012 code · C05xx 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 C05AA mean?
ABS pump motor temperature exceeded safe limit — typically after extended ABS activity or stuck rotor.
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 Thermal overload from extended use
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of C05AA on the same make and model first.
C05AA in the community
Ask about C05AANo one has posted about C05AA yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your C05AA problem