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U0126 Lexus Code - Lost Communication with Steering Angle Sensor Module

Quick Answer

The U0126 diagnostic trouble code (DTC) for Lexus indicates that the vehicle has lost communication with the Steering Angle Sensor Module. Common causes include Faulty Steering Angle Sensor Module, Damaged wiring or connectors related to the module, Software glitch in the vehicle's communication system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U0126 Lexus indicates Lost Communication with Steering Angle Sensor Module.
Common causes
Common causes include Faulty Steering Angle Sensor Module, Damaged wiring or connectors related to the module, Software glitch in the vehicle's communication system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code U0126 Lexus Description

The U0126 diagnostic trouble code (DTC) for Lexus indicates that the vehicle has lost communication with the Steering Angle Sensor Module. This module is responsible for monitoring the steering angle of the vehicle and providing important data to various systems such as the stability control system, traction control system, and others. When communication with this module is lost, it can lead to a variety of issues that affect the vehicle's performance and safety.

OBDII Code U0126 Lexus - Lost Communication with Steering Angle Sensor Module
U0126 Lexus Code - Lost Communication with Steering Angle Sensor Module

Common Causes of U0126 Lexus

  1. Faulty Steering Angle Sensor Module.
  2. Damaged wiring or connectors related to the module.
  3. Software glitch in the vehicle's communication system.
  4. Problem with the vehicle's main computer.
  5. Electrical interference or corrosion in the communication system.

Symptoms of U0126 Lexus

  1. Illuminated warning light on the dashboard, such as the stability control or traction control light.
  2. Loss of stability and traction control functions.
  3. Erratic steering behavior or difficulty steering.
  4. Inaccurate readings on the steering angle display, if equipped.
  5. Decreased overall vehicle performance and handling.

How to Fix U0126 Lexus

  1. Begin by conducting a thorough inspection of the Steering Angle Sensor Module, wiring, and connectors for any visible damage or corrosion.
  2. Use a diagnostic scanner to reset the code and attempt to establish communication with the module.
  3. If communication is still not established, consider replacing the Steering Angle Sensor Module with a new one.
  4. Ensure that all connections are secure and that the module is properly calibrated after replacement.
  5. Test drive the vehicle to verify that the issue has been resolved and that all systems are functioning correctly.

Cost to Fix U0126 Lexus

The cost of repairing a lost communication issue with the Steering Angle Sensor Module can vary depending on the specific cause of the problem and the labor rates in your area. On average, the parts for this repair can range from $200 to $500, with labor costs typically adding another $100 to $200. Keep in mind that these are rough estimates, and actual costs may vary based on your location and the specific requirements of your Lexus vehicle. It is recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate.

What does this mean?

Tech Notes for U0126 Lexus

When there are problems with the way different systems in a vehicle communicate with each other using a technology called Controller Area Network (CAN) communication, Diagnostic Trouble Codes (DTC) are displayed. These codes can be caused by issues with the main bus or branch of the communication network, or with the Electronic Control Units (ECUs) and sensors that make up the different systems. If you see code for both the CAN communication problems and internal or power source problems at the same time, you should focus on fixing the internal or power source problems first.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U0126 Lexus Code

1. What are the common symptoms of OBDII code U0126 in a Lexus related to "Lost Communication with Steering Angle Sensor Module"?

- Common symptoms may include issues with the stability control system, traction control system, and steering assistance.

2. What are some possible causes of OBDII code U0126 in a Lexus?

- Possible causes include a faulty steering angle sensor module, damaged wiring or connectors, a blown fuse, or a communication network issue.

3. How can I diagnose the OBDII code U0126 in a Lexus?

- Diagnosis typically involves using a professional OBDII scanner to read the code and checking the wiring, connectors, and components related to the steering angle sensor module.

4. Can I still drive my Lexus with the U0126 code present?

- It is not recommended to drive the vehicle with the U0126 code, as it can affect the stability and safety systems of the car.

5. What are some repair tips for fixing the U0126 code in a Lexus?

- Repair tips may include checking and repairing any damaged wiring, replacing the steering angle sensor module if necessary, and ensuring all connections are secure.

6. Is it possible to reset the U0126 code in a Lexus without fixing the issue?

- While you can clear the code temporarily, it will likely reappear until the underlying issue with the steering angle sensor module is addressed.

7. Can a DIY enthusiast fix the U0126 code in a Lexus?

- Depending on your skill level and access to tools, you may be able to address simpler causes like checking connections or fuses. However, more complex issues may require professional help.

8. How much does it typically cost to repair the U0126 code in a Lexus?

- The cost of repair can vary based on the specific issue causing the code, but it may range from replacing a fuse or connector to replacing the steering angle sensor module.

9. Are there any recalls or technical service bulletins related to the U0126 code in Lexus vehicles?

- It's advisable to check with a Lexus dealership or refer to the manufacturer's website for any recalls or technical service bulletins related to the U0126 code in your specific Lexus model.

10. How can I prevent the U0126 code from occurring in my Lexus?

- Regular maintenance, checking for any signs of wiring damage, and addressing any warning lights or issues promptly can help prevent the U0126 code from occurring in your Lexus.

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