OBD-II code · Chassis
C05AA ABS Pump Motor Temperature Too High
ABS pump motor temperature exceeded safe limit — typically after extended ABS activity or stuck rotor.
Is it safe to drive with C05AA?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyThermal overload from extended use
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- ABS Pump Motor
Related codes
- C05A7ABS Pump Motor Supply Voltage B Circuit Low
- C05A8ABS Pump Motor Supply Voltage B Circuit Range/Performance
- C05A9ABS Pump Motor Supply Voltage Circuit A/B Correlation
- C05ABBrake Blending Separation Valve Performance
- C05ACBrake Blending Separation Valve Stuck Closed
- C05ADBrake Blending System Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.