ABS Pump Motor Circuit High
Voltage on the pump motor control line is above the expected range, typically caused by a short to battery voltage or a stuck relay.
Affected components
- Abs pump motor
- Pump motor relay
- Control wiring
Common causes
- High likelihood: Wiring shorted to battery voltage
- Medium likelihood: Relay contacts welded closed
- 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.