The C0561-71 code is a diagnostic trouble code (DTC) that affects GMC and Chevrolet vehicles, specifically related to the traction control system. This code indicates an issue with the Electronic Brake Control Module (EBCM) receiving invalid serial data, which can lead to the disabling of important safety features.

C0561-71 Code Explained

The C0561-71 code specifically means "System disabled information stored invalid serial data received." When this code appears, it typically indicates that the EBCM is either receiving faulty data from other modules or is malfunctioning itself. This results in the deactivation of the antilock brake system, traction control, and vehicle stability enhancement system.

Affected Vehicles

This code commonly appears in various GMC and Chevrolet models, including:

  • Chevrolet Silverado
  • Chevrolet Malibu
  • Chevrolet Traverse
  • Chevrolet Tahoe
  • GMC Sierra
  • GMC Acadia
  • GMC Yukon
  • Buick Enclave

Symptoms of C0561-71

When the C0561-71 code is present, you may experience the following symptoms:

  • Illuminated check engine light or traction control light
  • Disabled traction control system
  • Reduced engine power
  • Unusual brake behavior
  • Ride instability, especially during turns or on rough terrain

Causes of C0561-71

The C0561-71 code can be triggered by several factors:

  • Faulty wheel speed sensors
  • Damaged wiring or connectors in the EBCM system
  • Malfunctioning EBCM
  • Issues with other modules communicating with the EBCM
  • Software glitches in the vehicle's computer systems

Diagnosing C0561-71

To properly diagnose the C0561-71 code, follow these steps:

1. Use a diagnostic scan tool to confirm the code and check for any additional codes

2. Inspect the wiring and connectors related to the EBCM and wheel speed sensors

3. Check the functionality of the wheel speed sensors

4. Verify the proper operation of other modules that communicate with the EBCM

5. Test the EBCM itself for any internal faults

Fixing C0561-71

Resolving the C0561-71 code may involve one or more of the following solutions:

  • Replacing faulty wheel speed sensors
  • Repairing or replacing damaged wiring and connectors
  • Updating the vehicle's software if available
  • Replacing the EBCM if found to be defective

It's important to note that addressing this code promptly is crucial for maintaining the safety features of your vehicle. If you're not comfortable with automotive diagnostics and repairs, it's recommended to seek the assistance of a qualified mechanic or dealership.

Preventing C0561-71

While not all instances of C0561-71 can be prevented, you can reduce the risk by:

  • Regularly maintaining your vehicle according to the manufacturer's schedule
  • Addressing any warning lights or unusual behavior promptly
  • Avoiding exposure to extreme conditions that could damage electrical components
  • Using only OEM or high-quality replacement parts when repairs are needed

FAQs About C0561-71 Traction Control Code

    • Can I drive my vehicle with the C0561-71 code present?
      While you can drive, it's not recommended as important safety features may be disabled. Have your vehicle inspected as soon as possible.
    • Will clearing the code fix the problem?
      Clearing the code may temporarily remove the warning, but if the underlying issue isn't addressed, the code will likely return.
    • How much does it cost to fix a C0561-71 code?
      Costs can vary widely depending on the cause, ranging from $100 for a simple sensor replacement to over $1000 if the EBCM needs replacement.