OBD-II code · Chassis
C052B ABS Pump Motor Control Range/Performance
ABS pump motor does not respond to control signals as expected — motor may be sluggish, locked or drawing abnormal current.
Is it safe to drive with C052B?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPump motor failed
- Less likelySensor element aged beyond calibration window
- Less likelySensor mounting loose - signal damping
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–6 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- ABS Pump Motor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.