ABS Pump Motor Circuit Low
Voltage on the pump motor control line is below threshold. Typical causes are a short to ground or interrupted positive supply.
Affected components
- Abs pump motor
- Pump motor relay
- Power supply wiring
Common causes
- High likelihood: Wiring shorted to ground
- Medium likelihood: Pump motor relay failed
- Low likelihood: Connector pins corroded - high contact resistance
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.