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.
Affected components
- Abs pump motor
- Abs control module
- Abs relay
- Power supply wiring
Common causes
- High likelihood: ABS pump motor failed (worn brushes, seized)
- Medium likelihood: ABS pump relay failed
- Low likelihood: Power supply wiring or fuse fault
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.