C0223 on GMC
Right Front Wheel Speed Sensor Signal Erratic
C0223 on GMC vehicles indicates right front wheel speed sensor signal erratic. Au7o has documented this code across 1 GMC model — most commonly on Yukon XL. This code means the ABS module is receiving a signal from the right front wheel speed sensor, but the signal is erratic or inconsistent rather than smooth and steady. An erratic signal often points to a mechanical issue — like a damaged tone ring, debris in the sensor gap, or a wobbling wheel bearing — rather than a pure wiring fault. The module may disable ABS, traction, and stability control and illuminate the warning lights. Driving on very rough terrain can occasionally trigger this code even when the system is healthy. Typical repair costs on GMC range from $180 to $900, depending on the specific model and root cause.
Common Causes of C0223
- •Debris, rust, or metal shavings at the sensor/tone ring
- •Damaged or chipped tone (reluctor) ring
- •Worn wheel bearing causing sensor wobble
- •Failing right front wheel speed sensor
- •Loose sensor mounting or excessive air gap
- •Intermittent wiring/connector fault
- •Rough-road false trigger (verify before replacing parts)
C0223 on GMC by Model
GMC Yukon XL(1 issue)
- Front Hub Bearing and ABS Wheel Speed Sensor Corrosion Causing Unwanted ABS Activation2000-2006
GMT800 SUVs commonly develop corrosion under the front wheel speed sensors or wear in the hub bearing assembly, which alters the low-speed wheel speed signal. The result is unexpected ABS activation at parking-lot speeds, longer stopping distances, and a pulsating brake pedal even on dry pavement. GM documented this condition in service bulletins, and owners frequently report replacing hub assemblies to cure it.
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What does C0223 mean on GMC?▼
C0223 stands for "Right Front Wheel Speed Sensor Signal Erratic." This code means the ABS module is receiving a signal from the right front wheel speed sensor, but the signal is erratic or inconsistent rather than smooth and steady. An erratic signal often points to a mechanical issue — like a damaged tone ring, debris in the sensor gap, or a wobbling wheel bearing — rather than a pure wiring fault. The module may disable ABS, traction, and stability control and illuminate the warning lights. Driving on very rough terrain can occasionally trigger this code even when the system is healthy. On GMC specifically, this code is documented across 1 model.
What causes C0223 on GMC vehicles?▼
Common causes on GMC: Debris, rust, or metal shavings at the sensor/tone ring, Damaged or chipped tone (reluctor) ring, Worn wheel bearing causing sensor wobble, Failing right front wheel speed sensor, Loose sensor mounting or excessive air gap. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C0223 on a GMC?▼
Repair costs on GMC range from $180 to $900, depending on the specific model and root cause.
Which GMC models have C0223 documented?▼
Au7o has documented C0223 on 1 GMC model: Yukon XL.