C0023
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.
Voltage on the pump motor control line is above the expected range, typically caused by a short to battery voltage or a stuck relay.
Common causes
- high
Wiring shorted to battery voltage
One of the most commonly reported causes for this code — check this first.
Typical part cost: $130-880
- medium
Relay contacts welded closed
A plausible cause — test and verify before replacing parts.
Typical part cost: $130-880
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does C0023 mean?
C0023 means "ABS Pump Motor Circuit High". It is a generic OBD-II code that points to a fault in the chassis.
What are the most common causes of C0023?
wiring shorted to battery voltage; relay contacts welded closed; connector pins corroded - high contact resistance — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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