The C0561-71 code is a common diagnostic trouble code (DTC) associated with various Chevrolet models, particularly those equipped with traction control systems. This article aims to provide comprehensive insights into this error code, its implications, and potential solutions.

What is C0561-71?

The C0561-71 code indicates that the Electronic Brake Control Module (EBCM) has detected a fault related to invalid serial data received. This can occur when the EBCM is not receiving accurate information from other vehicle modules, leading to the disabling of the traction control system.

Common Symptoms

Drivers may experience several symptoms when this code is triggered, including:

  • Traction Control Light Activation: The traction control warning light may illuminate on the dashboard.

  • Stability Control Issues: The vehicle may exhibit stability control problems, affecting handling during adverse conditions.

  • Brake Lights Staying On: In some cases, the brake lights may remain illuminated even when the brake pedal is not engaged.

Causes of C0561-71

Several factors can lead to the C0561-71 code being triggered:

  • Faulty EBCM: The EBCM itself may be malfunctioning or damaged.

  • Wiring Issues: Damaged or corroded wiring and connectors can disrupt communication between modules.

  • Sensor Failures: Problems with wheel speed sensors or brake pedal position sensors can also cause this error.

Diagnosing C0561-71

To effectively diagnose and resolve the C0561-71 code, follow these steps:

1. Scan for Codes: Use a professional OBD-II scanner to confirm the presence of the C0561-71 code and check for any additional codes that may provide more context.

2. Inspect Wiring and Connectors: Examine all relevant wiring and connectors for signs of damage or corrosion. Pay particular attention to the connections around the EBCM.

3. Test Sensors: Check the functionality of wheel speed sensors and brake pedal position sensors. Replace any faulty components as necessary.

4. Check EBCM Functionality: If no other issues are found, consider testing or replacing the EBCM itself.

5. Clear Codes and Test Drive: After repairs, clear the codes and take the vehicle for a test drive to ensure that the issue has been resolved.

Solutions for C0561-71

Here are some potential solutions to address the C0561-71 code:

  • Repair or Replace Wiring: If any wiring issues are found, repair or replace damaged sections to restore proper communication.

  • Sensor Replacement: If faulty sensors are identified, replacing them can often resolve the issue.

  • EBCM Replacement: In cases where the EBCM is confirmed to be faulty, replacing it may be necessary.

Preventive Measures

To prevent future occurrences of the C0561-71 code:

  • Regularly inspect vehicle wiring and connectors for wear or damage.

  • Keep up with routine maintenance, including checking brake system components.

FAQs About C0561-71

    • What does C0561-71 mean?
      The code indicates that the Electronic Brake Control Module has received invalid serial data.
    • Can I drive my car with this code?
      While it may be possible to drive, it is not advisable due to potential safety issues with traction control.
    • How much does it cost to fix?
      Repair costs can vary widely depending on whether wiring, sensors, or the EBCM needs replacement.