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U2143 Chevrolet Code - Lost Communications With Steering Angle Sensor

Quick Answer

The U2143 code for Chevrolet vehicles indicates that there has been a loss of communication with the steering angle sensor. Common causes include Loose or damaged wiring connections to the steering angle sensor, Malfunctioning steering angle sensor, Electronic control module (ECM) failure. 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
U2143 Chevrolet indicates Lost Communications With Steering Angle Sensor.
Common causes
Common causes include Loose or damaged wiring connections to the steering angle sensor, Malfunctioning steering angle sensor, Electronic control module (ECM) failure.
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 12, 2024
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Code U2143 Chevrolet Description

The U2143 code for Chevrolet vehicles indicates that there has been a loss of communication with the steering angle sensor. The steering angle sensor is a critical component of the vehicle's electronic stability control system, as it helps to determine the position of the steering wheel and the vehicle's direction. When communication with this sensor is lost, it can lead to a range of issues that affect the vehicle's performance and safety.

OBDII Code U2143 Chevrolet - Lost Communications With Steering Angle Sensor
U2143 Chevrolet Code - Lost Communications With Steering Angle Sensor

Common Causes of U2143 Chevrolet

  1. Loose or damaged wiring connections to the steering angle sensor
  2. Malfunctioning steering angle sensor
  3. Electronic control module (ECM) failure
  4. Software issues in the vehicle's computer system
  5. Corrosion or water damage affecting sensor operation

Symptoms of U2143 Chevrolet

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction
  3. Erratic steering response or drift
  4. Loss of stability control during turns
  5. Vehicle pulling to one side during braking

How to Fix U2143 Chevrolet

  1. Diagnose the root cause of the communication loss with a professional diagnostic scan tool.
  2. Inspect and repair any damaged wiring connections to the steering angle sensor.
  3. Replace the steering angle sensor if it is found to be faulty.
  4. Check and reprogram the electronic control module (ECM) if necessary.
  5. Clear the diagnostic trouble codes and perform a test drive to verify the issue has been resolved.

Cost to Fix U2143 Chevrolet

The typical repair costs for resolving the U2143 code related to lost communication with the steering angle sensor can vary depending on the specific cause of the issue. On average, replacing the steering angle sensor and addressing any wiring or module repairs may range from $200 to $500 for parts and labor. However, the total cost could be higher if additional components need to be replaced or if extensive diagnostics are required. It's recommended to consult with a trusted mechanic or dealership to get a more accurate estimate based on the vehicle's make and model, as well as the extent of the needed repairs. Remember that labor rates can vary, so it's advisable to inquire about local rates before proceeding with the repair.

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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 U2143 Chevrolet Code

1. What are common symptoms of the OBDII code U2143 in a Chevrolet related to lost communications with the steering angle sensor?

- Common symptoms include issues with the electronic stability control system, traction control system malfunctions, and the illumination of the ABS warning light on the dashboard.

2. What are some possible causes of the U2143 code in a Chevrolet indicating lost communications with the steering angle sensor?

- Potential causes may include a faulty steering angle sensor, damaged wiring or connectors in the steering angle sensor circuit, or issues with the electronic control module.

3. How can I diagnose the U2143 code in my Chevrolet related to lost communications with the steering angle sensor?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the trouble codes, checking the wiring and connectors for any damage, and testing the steering angle sensor for proper functionality.

4. Can I continue driving my Chevrolet with the U2143 code present?

- It is not recommended to drive the vehicle with the U2143 code as it may affect the proper functioning of important safety systems like ABS and stability control.

5. How can I repair the U2143 code in my Chevrolet due to lost communications with the steering angle sensor?

- Repairing this code often involves addressing the root cause, such as replacing a faulty steering angle sensor, repairing damaged wiring, or reprogramming the electronic control module.

6. Are there any DIY tips for troubleshooting the U2143 code in a Chevrolet?

- While basic checks like inspecting wiring connections can be done by DIY enthusiasts, diagnosing and repairing the U2143 code may require professional tools and expertise.

7. How much does it typically cost to repair the U2143 code in a Chevrolet at a dealership or repair shop?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve diagnostic fees, parts replacement costs, and labor charges, which can range from a few hundred to a thousand dollars.

8. Can a U2143 code be a recurring issue in a Chevrolet even after it has been repaired?

- If the root cause of the U2143 code is not properly addressed during the repair, it may recur. Ensuring a thorough diagnosis and repair can help prevent the issue from coming back.

9. Is it necessary to reset the trouble codes after repairing the U2143 code in a Chevrolet?

- Yes, it is important to clear the trouble codes after repairing the U2143 code to reset the system and ensure that the issue has been properly resolved.

10. How can regular maintenance help prevent the occurrence of the U2143 code in a Chevrolet related to the steering angle sensor?

- Regular maintenance, including checking the steering system components, inspecting wiring for damage, and keeping the electronic control module updated, can help prevent issues like the U2143 code from occurring.

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