The C0561-71 code is a diagnostic trouble code (DTC) that pertains to Chevrolet vehicles, indicating a problem related to the electronic brake control module (EBCM). This code often arises when the EBCM receives invalid data from other systems, leading to the disabling of traction control and antilock brake systems. Understanding this code is crucial for vehicle owners and technicians alike, as it can affect vehicle safety and performance.

What Does C0561-71 Mean?

The C0561-71 code specifically indicates “System Disabled Information Stored Invalid Serial Data Received.” This means that the EBCM has detected an issue with the data it is receiving from other modules, such as the engine control module (ECM) or body control module (BCM). As a result, it disables certain functions like traction control and stability enhancement systems.

Symptoms of C0561-71

When this code is triggered, drivers may experience several symptoms:

  • Traction Control Light: The traction control warning light may illuminate on the dashboard.
  • Stability Control Issues: The vehicle’s stability control system may become inactive.
  • Braking Performance: There could be changes in how the brakes respond, especially under slippery conditions.

Causes of C0561-71

Several factors can lead to the activation of the C0561-71 code:

  • Faulty EBCM: The EBCM itself may be defective, causing it to misinterpret data.
  • Wiring Issues: Damaged or corroded wiring and connectors can disrupt communication between modules.
  • Sensor Malfunctions: Faulty sensors that provide data to the EBCM can trigger this code.
  • Software Issues: Outdated or incorrect software in the vehicle’s control modules can also lead to communication errors.

Troubleshooting Steps

To effectively address the C0561-71 code, follow these troubleshooting steps:

1. Scan for Additional Codes: Use an OBD-II scanner to check for other DTCs that may provide clues about the underlying issue.

2. Inspect Wiring and Connectors: Examine all wiring and connectors related to the EBCM for signs of damage or corrosion. Ensure that connections are secure.

3. Check Sensor Functionality: Test related sensors (like wheel speed sensors) to ensure they are functioning correctly. If any sensors are faulty, replace them.

4. Update Software: Ensure that all vehicle control modules have the latest software updates installed. Sometimes, a simple software update can resolve communication issues.

5. EBCM Testing: If no issues are found with wiring or sensors, consider testing or replacing the EBCM itself. This should be done by a qualified technician due to its complexity.

6. Clear Codes and Test Drive: After repairs, clear the codes and take the vehicle for a test drive to see if the issue reoccurs.

FAQs About C0561-71

  • What should I do if I see the C0561-71 code?
    Start by checking for additional codes and inspect wiring and connectors related to the EBCM.
  • Can I drive my vehicle with this code?
    While you can drive, it’s not recommended as it affects traction control and braking systems.
  • How much does it cost to fix C0561-71?
    Costs vary widely depending on whether it’s a wiring issue or requires EBCM replacement; expect anywhere from $100 to over $1000.

By understanding the implications of the C0561-71 code and following appropriate troubleshooting steps, vehicle owners can ensure their Chevrolet remains safe and reliable on the road.