What Does U0126 Mean?
Communication has been lost with the steering angle sensor module, which monitors steering wheel position and rate of turn. This sensor is critical for stability control, lane keeping, and other steering-dependent safety systems.
Safety Warning
Stability control, traction control, and lane keeping systems will be disabled. Vehicle will lack steering position awareness needed for critical safety interventions during emergency maneuvers.
Common Causes
35%
Faulty steering angle sensor with internal electronics or communication failure
25%
Damaged clock spring or steering column wiring harness
20%
Corroded or loose connector at steering angle sensor or column
15%
CAN bus communication circuit damage in steering column area
5%
Control module communication interface failure or sensor not calibrated after service
Diagnostic Steps
1
Step 1: Inspect steering angle sensor connector under steering column for corrosion, damage, or loose connection
2
Step 2: Check clock spring condition and wiring continuity by rotating steering wheel while monitoring resistance
3
Step 3: Verify power and ground to steering angle sensor with multimeter at sensor connector
4
Step 4: Use scan tool to monitor steering angle sensor reading while slowly turning steering wheel lock-to-lock; verify smooth data transition
5
Step 5: Check CAN bus signal integrity at steering column and verify proper communication circuit voltage; perform steering angle sensor calibration procedure if sensor responds
Estimated Repair Cost
$150 - $1,200
Parts + labor, varies by vehicle and location
Communication has been lost with the steering angle sensor module, which monitors steering wheel position and rate of turn. This sensor is critical for stability control, lane keeping, and other steering-dependent safety systems.
The most common cause of U0126 (Lost Communication With Steering Angle Sensor Module) is: Faulty steering angle sensor with internal electronics or communication failure
Typical repair costs for U0126 range from $150 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Stability control, traction control, and lane keeping systems will be disabled. Vehicle will lack steering position awareness needed for critical safety interventions during emergency maneuvers.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0126 to identify the root cause.
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Quick Info
Category
Network
System
Steering System / Stability Control
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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