C0034 on 2014-2021 Ford Transit Connect — Right Front Wheel Speed Sensor Circuit
1 vehicles · 1 makes · $120-$650 repair
Most Reported On
C0034 is an OBD-II diagnostic trouble code meaning “Right Front Wheel Speed Sensor Circuit.” C0034 is a chassis/brake code indicating a fault in the right front wheel speed sensor circuit. The ABS module uses this sensor to monitor right-front wheel rotation for anti-lock braking, traction, and stability control, and it sets the code on an open, short, or invalid signal. Expect the ABS, traction, and stability control warning lights to come on with those features disabled, though standard braking generally remains available. This code is most commonly reported on 2014-2021 Ford Transit Connect, with repair costs ranging from $120 to $650.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C0034, 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+).
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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)
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- 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.
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- Oil reset, EPB, BMS, TPMS, injector coding
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FAQ
What does C0034 mean?
C0034 stands for "Right Front Wheel Speed Sensor Circuit." C0034 is a chassis/brake code indicating a fault in the right front wheel speed sensor circuit. The ABS module uses this sensor to monitor right-front wheel rotation for anti-lock braking, traction, and stability control, and it sets the code on an open, short, or invalid signal. Expect the ABS, traction, and stability control warning lights to come on with those features disabled, though standard braking generally remains available.
What are the most common causes of C0034?
The most common causes of C0034 are: Failed right front 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 looseness, ABS control module fault. The specific cause varies by vehicle.
How much does it cost to fix C0034?
Repair costs for C0034 range from $120 to $650, depending on the vehicle and root cause.
Which vehicles are affected by C0034?
Au7o has documented C0034 across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.