C1259Steering angle sensor signal fault (in the column)

• Hyundai/Kia code · Power steering
• Lights a warning lamp

How the car detects it

The steering angle signal from the column sensor is faulty. When the power steering limits or stops its assistance, the steering becomes heavy but still works mechanically.

What you may notice

• Power steering warning light

Likely causes

• PossibleTorque/angle sensor wiring
• PossibleSteering column assembly

Sources

• static.nhtsa.gov › MC-10179244-0001.pdf · official document

Backed by an official manufacturer document.

From Obdaryn's Hyundai/Kia pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.