C003A on 2022-2024 Jeep Grand Wagoneer — Right Rear Wheel Speed Sensor Circuit
1 vehicles · 1 makes · $250-$1,200 repair
Most Reported On
C003A is an OBD-II diagnostic trouble code meaning “Right Rear Wheel Speed Sensor Circuit.” C003A is a chassis/brake code indicating a fault in the right rear wheel speed sensor circuit. The ABS module uses this sensor to track right-rear wheel rotation for anti-lock braking, traction control, and stability control, and stores the code when it detects an open, short, or implausible signal. The ABS, traction, and stability control warning lights commonly illuminate and those systems may be deactivated, while base braking usually still works. This code is most commonly reported on 2022-2024 Jeep Grand Wagoneer, with repair costs ranging from $250 to $1,200.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C003A, 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
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FAQ
What does C003A mean?
C003A stands for "Right Rear Wheel Speed Sensor Circuit." C003A is a chassis/brake code indicating a fault in the right rear wheel speed sensor circuit. The ABS module uses this sensor to track right-rear wheel rotation for anti-lock braking, traction control, and stability control, and stores the code when it detects an open, short, or implausible signal. The ABS, traction, and stability control warning lights commonly illuminate and those systems may be deactivated, while base braking usually still works.
What are the most common causes of C003A?
The most common causes of C003A are: Failed right rear wheel speed sensor, Damaged or chafed sensor wiring, Corroded or loose sensor connector, Damaged or contaminated tone/reluctor ring, Excessive air gap or wheel bearing play, ABS control module fault. The specific cause varies by vehicle.
How much does it cost to fix C003A?
Repair costs for C003A range from $250 to $1,200, depending on the vehicle and root cause.
Which vehicles are affected by C003A?
Au7o has documented C003A across 1 vehicle models from 1 manufacturers: Jeep.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.