OBD-II code · Network
U0126 Lost Communication with Steering Angle Sensor Module
The Steering Angle Sensor Module has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. Stability control loses the steering-angle reference and usually disables ESC. Typical causes are loss of power or ground at the module, an open or shorted CAN/LIN bus wire, a connector fault, or an internal module failure.
Is it safe to drive with U0126?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySteering angle sensor unpowered
- PossibleClockspring (in steering column) failed
- Less likelyGateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Steering Angle Sensor, Can Bus Wiring
Related codes
- U0236Lost Communication with Steering Angle Sensor Module
- U0123Lost Communication with Yaw Rate Sensor Module
- U0124Lost Communication with Lateral Acceleration Sensor Module
- U0125Lost Communication with Multi-axis Acceleration Sensor
- U0127Lost Communication with Tire Pressure Monitor Module
- U0128Lost Communication with Park Brake Control Module
- U0129Lost Communication with Brake System Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.