C1260: Steering Angle Sensor Circuit / Signal (manufacturer-specific)
12 vehicles · 3 makes · $50-$1,500 repair
Most Reported On
C1260 is an OBD-II diagnostic trouble code meaning “Steering Angle Sensor Circuit / Signal (manufacturer-specific).” C1260 is a chassis code most commonly defined as a fault in the steering angle sensor (SAS) circuit or signal, used widely on Hyundai/Kia and GM vehicles (some platforms apply it to a wheel-speed comparison fault instead). The ABS/stability-control module relies on the SAS to know the steering wheel's angle and direction for electronic stability control calculations, and it sets this code when that signal is missing, corrupt, or illogical. The result is typically disabled stability/traction control with warning lights. Because the exact definition varies by make, confirm against the vehicle's service data. This code is most commonly reported on 2021-2024 Kia K5, 2018-2025 Audi SQ5, and 2020-2025 Audi SQ8, plus 9 other vehicles, with repair costs ranging from $50 to $1,500.
Common Causes
Typical Repair Cost
Based on 12 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
C1260 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
Vehicles Affected (12)
Air-Suspension Warning with C1260F0 or U112100 Communication Fault
2020-2025 SQ8 Air-Suspension J1135 Communication Fault - TSB 2059363/6
2019-2025 A8 Air-Suspension Warning C1260F0/U112100 - TSB 2059363/6
2019-2023 e-tron Air-Suspension Warning with J1135 Communication Fault - Diagnosis Required
2019-2025 Q8 Air-Suspension J1135 Communication Fault - TSB 2059363/6
2020-2024 S8 Air-Suspension Malfunction with J1135 Communication Fault - Diagnosis Required
2021-2025 RS7 Air-Suspension J1135 Communication Fault - TSB 2059363/6
2021-2024 RS6 Air-Suspension Warning - Check C1260F0 or U112100
2020-2025 RS Q8 Air-Suspension J1135 Communication Fault - TSB 2059363/6
2020-2025 SQ7 Air-Suspension C1260F0/U112100 Communication Fault - Diagnosis Required
FAQ
What does C1260 mean?
C1260 stands for "Steering Angle Sensor Circuit / Signal (manufacturer-specific)." C1260 is a chassis code most commonly defined as a fault in the steering angle sensor (SAS) circuit or signal, used widely on Hyundai/Kia and GM vehicles (some platforms apply it to a wheel-speed comparison fault instead). The ABS/stability-control module relies on the SAS to know the steering wheel's angle and direction for electronic stability control calculations, and it sets this code when that signal is missing, corrupt, or illogical. The result is typically disabled stability/traction control with warning lights. Because the exact definition varies by make, confirm against the vehicle's service data.
What are the most common causes of C1260?
The most common causes of C1260 are: Faulty steering angle sensor, Steering angle sensor needs recalibration/initialization, Worn steering coupler/clock spring (common on Hyundai/Kia), Damaged wiring or connector to the SAS, CAN communication fault between SAS and ABS module, Faulty ABS/ESC control module, Recent steering or suspension work without recalibration. The specific cause varies by vehicle.
How much does it cost to fix C1260?
Repair costs for C1260 range from $50 to $1,500, depending on the vehicle and root cause.
Which vehicles are affected by C1260?
Au7o has documented C1260 across 12 vehicle models from 3 manufacturers: Audi, Hyundai, Kia.
Sources (6)
- TSBAudi TSB 2059363/6 - Air Suspension Warning with C1260F0 or U112100
- TSBAudi TSB 2059363/5 - Air-Suspension Warning with C1260F0 or U112100
- TSBAudi TSB 2059363/4 - Air Suspension Malfunction, J1135 Communication or Missing Message
- ForumElectronic Power Steering Failure - Hyundai Forums
- Forum71 Complaints: 2015 Hyundai Sonata Steering Problems - CarComplaints
- Forum2017 Sonata Power Steering Problem - Hyundai Forums
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.