U0126Network Communication

Lost Communication With Steering Angle Sensor Module

U0126 means a module has lost communication with the steering angle sensor module over the CAN bus. This sensor feeds stability control and steering systems. It usually points to a wiring, power, ground, or connector fault.

🚗 Not recommended. Losing the steering angle sensor disables stability control and can affect steering assist.

HIGH

severity

🎯 Top Causes, Ranked by Likelihood

#1Wiring, connector, or CAN bus fault$50-$500

45%

Damaged or corroded wiring to the sensor module.

#2Power or ground fault$50-$400

30%

Blown fuse or poor ground at the module.

#3Failed steering angle sensor module$200-$900

15%

The sensor module itself has failed.

🩺 Common Symptoms

Stability control warning
Steering warning message
ABS warning light
Warning lights
Other U-codes stored

💰 Repair Cost: DIY vs Shop

DIY Cost

$50-$400

Shop Cost

$150-$1000

📋 Free OBD2 Code Cheat Sheet

The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.

🔧 How to Diagnose U0126

1Check fuses, power, and grounds for the sensor module

2Inspect CAN wiring and connectors at the module

3Scan all modules for lost-communication patterns

4Perform a steering angle sensor calibration after repairs

❓ Frequently Asked Questions

Can I drive with U0126?

Not safely. Stability control is disabled and steering assist may be affected. Diagnose it first.

What causes U0126?

Wiring, connector, or power/ground faults at the steering angle sensor module, most often.

Do I need a calibration after fixing U0126?

Yes, the steering angle sensor usually needs recalibration with a scan tool after the fault is repaired.

🔗 Related Codes

U0100U0121U0122U0131