The most common causes are: Failed ABS pump motor; Blown high-current fuse for the pump; Corroded or loose electrical connection at the ABS module; Poor ground connection; Failed pump relay.

How much does it cost to fix C0110?

Typical repairs range from $10–$40 for replace fuse up to $700–$2,000 for replace abs module/pump assembly. Costs vary by vehicle and region.

C0110chassis

C0110 – ABS Pump Motor Circuit Malfunction

What does C0110 mean?

The ABS pump motor circuit has a malfunction. The pump motor generates the hydraulic pressure that lets the ABS system rapidly modulate brake pressure during an anti-lock stop. Without it, ABS cannot function.

What causes C0110?

Listed from most to least common:

1Failed ABS pump motor
2Blown high-current fuse for the pump
3Corroded or loose electrical connection at the ABS module
4Poor ground connection
5Failed pump relay
6Internal ABS module fault
7Low system voltage

Code breakdown

SystemC — Chassis

TypeGeneric (standardized SAE / OBD-II code — same meaning across most manufacturers)

Common symptoms

ABS warning light on
Traction and stability control disabled
No ABS pump noise during self-test at startup
Brake pedal may feel normal but ABS does not engage when needed

How to diagnose

1Check the high-current ABS fuse first — it is the cheapest possible cause.
2Verify battery voltage and charging system health, since low voltage can trigger this code.
3Inspect the ABS module connector for corrosion and ensure it is fully seated.
4Check ground connections at the module.
5Command the pump motor on with a capable scan tool and listen for operation.
6Measure voltage at the pump motor circuit during the commanded test.

ABS and stability control will be disabled. Normal braking still works, but you lose anti-lock assistance in emergency stops. Have this diagnosed promptly.

Common fixes and estimated costs

Repair	Estimated cost
Replace fuse	$10–$40
Clean/repair connector or ground	$100–$400
Replace pump relay	$80–$250
Replace ABS module/pump assembly	$700–$2,000

Costs are rough US estimates including parts and labor. Actual pricing varies significantly by vehicle, region, and shop rates.

Good to know

Check the fuse and connector before accepting a quote for a full ABS module. On some vehicles the module can be rebuilt or the motor serviced separately, which is considerably cheaper than a new assembly — worth asking about.

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This information is provided for general reference only and may vary by manufacturer, model, and year. It is not a substitute for professional diagnosis or repair.