C1259 on Hyundai
Manufacturer-Specific Chassis Code (Wheel-Speed Comparison or Steering Angle Sensor)
C1259 on Hyundai vehicles indicates manufacturer-specific chassis code (wheel-speed comparison or steering angle sensor). Au7o has documented this code across 1 Hyundai model — most commonly on Veloster. 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. Typical repair costs on Hyundai range from $250 to $2,200, depending on the specific model and root cause.
Common Causes of C1259
- •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
C1259 on Hyundai by Model
Hyundai Veloster(1 issue)
- Electric Power Steering Assist Loss or Heavy Steering from MDPS/Steering Column Faults2019-2021
Multiple owners reported sudden loss of steering assist or abnormally heavy steering effort, sometimes accompanied by warning lights and fault messages. On modern Hyundai platforms this is commonly tied to the Motor Driven Power Steering (MDPS) system, steering angle/torque sensing, or column-related electrical faults. Even when the vehicle remains steerable, the abrupt increase in effort creates a meaningful safety concern at low speeds and during evasive maneuvers.
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View C1259 across all makes →Frequently Asked Questions
What does C1259 mean on Hyundai?▼
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. On Hyundai specifically, this code is documented across 1 model.
What causes C1259 on Hyundai vehicles?▼
Common causes on Hyundai: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1259 on a Hyundai?▼
Repair costs on Hyundai range from $250 to $2,200, depending on the specific model and root cause.
Which Hyundai models have C1259 documented?▼
Au7o has documented C1259 on 1 Hyundai model: Veloster.