C1259 on 2019-2021 Hyundai Veloster — Manufacturer-Specific Chassis Code (Wheel-Speed Comparison or Steering Angle Sensor)
1 vehicles · 1 makes · $250-$2,200 repair
Most Reported On
C1259 is an OBD-II diagnostic trouble code meaning “Manufacturer-Specific Chassis Code (Wheel-Speed Comparison or Steering Angle Sensor).” C1259 is a manufacturer-specific chassis code whose meaning varies by maker; reported definitions include a wheel-speed comparison failure (for example, right front speed signal comparison) and, on Hyundai/Kia, a steering angle sensor electrical malfunction, and it also appears on some hybrid brake systems. In general it indicates that a chassis/stability control module detected an implausible signal or electrical fault in a monitored sensor input. When set, ABS and traction/stability control are usually affected and the related warning lights come on. Confirm the exact definition for your specific make and model with a capable scan tool or factory service manual. This code is most commonly reported on 2019-2021 Hyundai Veloster, with repair costs ranging from $250 to $2,200.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C1259, 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
- 7-inch touchscreen with Android OS
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FAQ
What does C1259 mean?
C1259 stands for "Manufacturer-Specific Chassis Code (Wheel-Speed Comparison or Steering Angle Sensor)." C1259 is a manufacturer-specific chassis code whose meaning varies by maker; reported definitions include a wheel-speed comparison failure (for example, right front speed signal comparison) and, on Hyundai/Kia, a steering angle sensor electrical malfunction, and it also appears on some hybrid brake systems. In general it indicates that a chassis/stability control module detected an implausible signal or electrical fault in a monitored sensor input. When set, ABS and traction/stability control are usually affected and the related warning lights come on. Confirm the exact definition for your specific make and model with a capable scan tool or factory service manual.
What are the most common causes of C1259?
The most common causes of C1259 are: Faulty wheel speed sensor or steering angle sensor, Steering angle sensor not calibrated (after alignment/repair), Wiring or connector fault in the sensor circuit, Damaged tone ring or implausible wheel-speed data, ABS/stability or hybrid brake control module fault, Low or unstable system voltage / poor ground. The specific cause varies by vehicle.
How much does it cost to fix C1259?
Repair costs for C1259 range from $250 to $2,200, depending on the vehicle and root cause.
Which vehicles are affected by C1259?
Au7o has documented C1259 across 1 vehicle models from 1 manufacturers: Hyundai.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.