OBD-II code · Chassis
C0110 ABS Pump Motor Circuit Malfunction
The ABS control module has detected a fault in the hydraulic pump motor circuit. The pump rebuilds brake pressure during ABS regulation — without it, ABS and stability control are disabled.
Is it safe to drive with C0110?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyABS pump motor failed (worn brushes, seized)
- PossibleABS pump relay failed
- Less likelyPower supply wiring or fuse fault
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
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- ABS Pump Motor, ABS Control Module, ABS Relay, Power Supply Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.