C0055: Rear Wheel Speed Sensor Circuit
3 vehicles · 3 makes · $150-$1,800 repair
Most Reported On
C0055 is an OBD-II diagnostic trouble code meaning “Rear Wheel Speed Sensor Circuit.” This chassis code means the ABS/control module detected a problem with the rear wheel-speed sensor signal circuit. Wheel-speed sensors tell the module how fast each wheel is turning so it can manage anti-lock braking, traction, and stability control; on many GM trucks and SUVs this code points to a single rear/output speed sensor at the transmission or transfer case. A lost or erratic signal typically disables ABS and traction control (warning lights on), affecting braking safety, so it should be addressed promptly. This code is most commonly reported on 2014-2022 Land Rover Range Rover Sport, 1999-2013 GMC Sierra 1500, and 2007-2025 Jeep Wrangler (Sport, Sahara, Rubicon, X), with repair costs ranging from $150 to $1,800.
Common Causes
Typical Repair Cost
Based on 3 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C0055, 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.
Vehicles Affected (3)
FAQ
What does C0055 mean?
C0055 stands for "Rear Wheel Speed Sensor Circuit." This chassis code means the ABS/control module detected a problem with the rear wheel-speed sensor signal circuit. Wheel-speed sensors tell the module how fast each wheel is turning so it can manage anti-lock braking, traction, and stability control; on many GM trucks and SUVs this code points to a single rear/output speed sensor at the transmission or transfer case. A lost or erratic signal typically disables ABS and traction control (warning lights on), affecting braking safety, so it should be addressed promptly.
What are the most common causes of C0055?
The most common causes of C0055 are: Faulty rear/vehicle speed sensor, Damaged, corroded, or open sensor wiring and connector, Debris or damage on the reluctor/tone ring, Excessive air gap or sensor mounting issue, Poor ground or shorted circuit, Faulty ABS/EBCM module (less common). The specific cause varies by vehicle.
How much does it cost to fix C0055?
Repair costs for C0055 range from $150 to $1,800, depending on the vehicle and root cause.
Which vehicles are affected by C0055?
Au7o has documented C0055 across 3 vehicle models from 3 manufacturers: GMC, Jeep, Land Rover.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.