C0110 on Chevrolet: How to Diagnose & Fix
ABS Pump Motor Circuit Malfunction
1 Chevrolet model · 1 documented issue · $100-$700 repair
C0110 on Chevrolet by model: symptoms, diagnosis and fix
GMT800 Tahoes commonly light the ABS, Traction Control and (on later trucks) StabiliTrak warnings simultaneously due to the Electronic Brake Control Module (EBCM) or, very often, its corroded frame-mounted ground. The dedicated EBCM ground on the driver-side frame rail is exposed to road salt and corrodes, causing intermittent module communication loss and codes like C0265. Internal EBCM solder-joint failures also occur. Normal service braking still works, but ABS/traction functions drop out.
Common Symptoms
- ABS, Traction and StabiliTrak lights on together
- Speedometer dropout or erratic (shared circuit)
- Code C0265 / loss of module communication
- ABS inoperative but normal pedal braking
- Intermittent lights that come and go over bumps
How to Fix
Pull chassis 'C' codes first. Before condemning the module, locate and clean/re-terminate the EBCM ground on the frame rail (a cheap, common fix). If the module itself is at fault (C0265/C0110 with confirmed internal fault), options are a rebuild/repair service for the EBCM or a replacement module that must be programmed to the VIN. Inspect the wheel-speed sensor circuits as well. Ground repair can be under $100; module rebuild/replacement runs several hundred.
Sources for this issue (1)
C0110 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C0110 mean on a Chevrolet?
C0110 stands for "ABS Pump Motor Circuit Malfunction." This code indicates a problem in the ABS pump motor circuit. The pump motor pressurizes brake fluid so the ABS and stability systems can rapidly modulate the brakes, and the control module detected an electrical fault — such as an open, short, or failure to run when commanded. With the pump unavailable, ABS and stability/traction control are typically disabled, though the conventional hydraulic brakes still function. The warning lights for ABS and traction usually illuminate. On Chevrolet it is documented across 1 model: Tahoe.
What are the most common causes of C0110?
The most common causes of C0110 are: Failed ABS pump motor, Faulty pump motor relay, Open or shorted pump motor circuit/wiring, Corroded or loose ABS module connector, Poor ground to the ABS hydraulic unit, Low battery voltage or weak charging system, Internal failure of the EBCM/ABS module. The specific cause varies by vehicle.
How much does it cost to fix C0110 on a Chevrolet?
Published repair estimates on Chevrolet range from $100 to $700 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for C0110 on a different make?
View C0110 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.