C0229 on 2000-2006 GMC Yukon XL — Dropout of Front Wheel Speed Signals
1 vehicles · 1 makes · $180-$900 repair
Most Reported On
C0229 is an OBD-II diagnostic trouble code meaning “Dropout of Front Wheel Speed Signals.” This code sets when the ABS module detects a simultaneous loss (dropout) of both front wheel speed signals. Losing both front signals at once usually points to a shared fault — such as a common ground, power feed, connector, or harness problem affecting both sensors — rather than a single failed sensor. ABS, traction control, and stability control are typically disabled and the warning lights illuminate. Like other front-sensor codes, very rough driving can occasionally trigger it on an otherwise healthy system. This code is most commonly reported on 2000-2006 GMC Yukon XL, with repair costs ranging from $180 to $900.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C0229, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does C0229 mean?
C0229 stands for "Dropout of Front Wheel Speed Signals." This code sets when the ABS module detects a simultaneous loss (dropout) of both front wheel speed signals. Losing both front signals at once usually points to a shared fault — such as a common ground, power feed, connector, or harness problem affecting both sensors — rather than a single failed sensor. ABS, traction control, and stability control are typically disabled and the warning lights illuminate. Like other front-sensor codes, very rough driving can occasionally trigger it on an otherwise healthy system.
What are the most common causes of C0229?
The most common causes of C0229 are: Damaged or corroded shared wiring/connector, Common ground or power-feed fault to both sensors, Both front wheel speed sensors dirty or damaged, Loose/corroded ABS module connector, Harness damage affecting both front circuits, Tone ring damage on both front wheels, Rough-road false trigger. The specific cause varies by vehicle.
How much does it cost to fix C0229?
Repair costs for C0229 range from $180 to $900, depending on the vehicle and root cause.
Which vehicles are affected by C0229?
Au7o has documented C0229 across 1 vehicle models from 1 manufacturers: GMC.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.