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U0428 Buick Code - Invalid Data Received From Steering Angle Sensor Module

Quick Answer

The U0428 diagnostic trouble code (DTC) for Buick vehicles indicates that the Engine Control Module (ECM) has detected invalid data being received from the steering angle sensor module. Common causes include Faulty steering angle sensor module, Damaged or corroded wiring harness connecting the sensor module to the ECM, Loose or poor connections within the sensor module or ECM. 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
U0428 Buick indicates Invalid Data Received From Steering Angle Sensor Module.
Common causes
Common causes include Faulty steering angle sensor module, Damaged or corroded wiring harness connecting the sensor module to the ECM, Loose or poor connections within the sensor module or ECM.
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 10, 2024
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Code U0428 Buick Description

The U0428 diagnostic trouble code (DTC) for Buick vehicles indicates that the Engine Control Module (ECM) has detected invalid data being received from the steering angle sensor module. The steering angle sensor is a critical component of the vehicle's stability control system, as it provides information about the steering wheel position and the vehicle's direction of travel. When the ECM receives incorrect or inconsistent data from the steering angle sensor module, it can lead to issues with the vehicle's stability control system, traction control, and potentially other safety systems.

OBDII Code U0428 Buick - Invalid Data Received From Steering Angle Sensor Module
U0428 Buick Code - Invalid Data Received From Steering Angle Sensor Module

Common Causes of U0428 Buick

  1. Faulty steering angle sensor module.
  2. Damaged or corroded wiring harness connecting the sensor module to the ECM.
  3. Loose or poor connections within the sensor module or ECM.
  4. Software issues or communication errors within the ECM.
  5. Physical damage to the sensor module due to impacts or exposure to elements.

Symptoms of U0428 Buick

  1. Illumination of the traction control or stability control warning light on the instrument cluster.
  2. Erratic or inconsistent steering response, especially during sharp turns or maneuvers.
  3. Unexpected activation of the traction control system or stability control system.
  4. Difficulty maintaining control or stability when driving on slippery surfaces.
  5. In some cases, the vehicle may go into a limp mode to prevent further damage.

How to Fix U0428 Buick

  1. Begin by performing a thorough visual inspection of the steering angle sensor module and its wiring harness to check for any obvious signs of damage or corrosion.
  2. Use a diagnostic scan tool to retrieve and record any stored fault codes, including the U0428 code, to pinpoint the exact issue.
  3. Test the steering angle sensor module's output signals using a multimeter to verify its functionality.
  4. Inspect and clean any electrical connections between the sensor module and the ECM to ensure a secure and reliable connection.
  5. If necessary, replace the steering angle sensor module or repair/replace any damaged wiring harness to resolve the issue.

Cost to Fix U0428 Buick

The cost estimate for resolving the U0428 code on a Buick vehicle can vary depending on the specific cause of the issue and the necessary repairs. In general, the cost of replacing a faulty steering angle sensor module can range from $200 to $500, while repairing or replacing damaged wiring harnesses may cost an additional $100 to $300. Labor costs typically range between $80 and $150 per hour, with the total repair bill potentially reaching $500 to $1000 or more, depending on the extent of the repairs needed. It's important to consult with a qualified mechanic or dealership for a more accurate cost estimate based on the specific circumstances of your vehicle.

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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 U0428 Buick Code

1. What does the OBDII code U0428 mean on a Buick?

The U0428 code indicates that the vehicle's control module has received invalid or incorrect data from the steering angle sensor module.

2. What are the common symptoms of the U0428 code in a Buick?

Common symptoms include the illumination of the check engine light, issues with electronic stability control (ESC), difficulty in steering, or warning lights related to traction control.

3. What causes the U0428 code to appear in a Buick?

Causes may include a malfunctioning steering angle sensor, wiring issues like damaged or corroded connectors, or a software glitch in the control module.

4. Can I drive my Buick with the U0428 code active?

While the car may still be drivable, issues with traction control or stability systems could compromise safety, so it’s best to address the problem promptly.

5. How is the U0428 code diagnosed in a Buick?

A technician will use a scan tool to check the code, inspect the steering angle sensor and its wiring, and test the module for proper communication.

6. Can a faulty steering angle sensor trigger the U0428 code?

Yes, a faulty steering angle sensor is one of the most common reasons for the U0428 code.

7. How do you fix the U0428 code on a Buick?

Repairs may involve replacing the steering angle sensor, repairing damaged wiring, or updating the control module’s software.

8. Is it expensive to fix the U0428 code in a Buick?

The cost depends on the root cause; replacing a steering angle sensor can range from $200 to $600 including parts and labor, while wiring repairs or software updates may cost less.

9. Can a dead battery cause the U0428 code in a Buick?

A dead or weak battery can sometimes cause communication errors between modules, potentially triggering the U0428 code.

10. Do I need to recalibrate the steering angle sensor after fixing the U0428 code?

Yes, recalibration is often required after replacing or repairing the steering angle sensor to ensure proper system functionality.

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