The C0561-71 code is a diagnostic trouble code (DTC) that indicates an issue with the Electronic Brake Control Module (EBCM) in vehicles. This code specifically refers to “System Disabled Information Stored: Invalid Serial Data Received.” It typically arises when the EBCM receives erroneous data from other vehicle control modules, leading to the deactivation of critical systems like Anti-lock Braking System (ABS) and Electronic Stability Control (ESC).

Understanding C0561-71

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

  • Invalid Messages: The EBCM receives invalid serial data messages from modules such as the Body Control Module (BCM) or Engine Control Module (ECM).
  • Malfunctioning Sensors: Issues with wheel speed sensors or brake pressure sensors can lead to incorrect data being sent to the EBCM.
  • Electrical Problems: Poor connections, damaged wiring, or issues within the control modules can also cause this error.

This code is significant as it affects vehicle stability and safety systems, which are crucial for safe driving.

Symptoms of C0561-71

Drivers may notice several symptoms when this code is present, including:

  • Deactivated ABS and Traction Control: The warning lights for these systems may illuminate on the dashboard.
  • Unusual Brake Behavior: Drivers might experience inconsistent braking performance or stability issues while driving.
  • Service Messages: Messages such as “Service Active Handling” may appear on the dashboard.

Troubleshooting Steps for C0561-71

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

DIY Troubleshooting

  • Inspect Wheel Speed Sensors: Check for any damage or dirt on the wheel speed sensors. Clean or replace them if necessary.
  • Assess Brake Pressure Settings: Ensure that brake pressure adjustments are in line with manufacturer specifications.
  • Check Control Modules: Inspect connections and wiring to the EBCM, BCM, and ECM for any signs of wear or damage.

Professional Diagnosis

If DIY troubleshooting does not resolve the issue, consider seeking professional help. A technician can perform:

  • Comprehensive Code Scanning: Use advanced diagnostic tools to read all stored codes and identify underlying issues.
  • Component Testing: Test individual components like sensors and control modules to ensure they are functioning correctly.
  • System Resets: Sometimes, resetting the vehicle’s computer systems can clear temporary faults.

Preventive Measures

To avoid encountering the C0561-71 code in the future, implement these preventive measures:

  • Regular Diagnostic Checks: Schedule routine inspections to catch potential issues early.
  • Daily Vehicle Inspections: Conduct brief checks before driving to identify any immediate concerns.
  • Maintain Proper Brake Pressure: Regularly verify that brake pressure settings are correct according to your vehicle’s manual.

FAQs About C0561-71

FAQs About C0561-71

  • What does the C0561-71 code mean?
    The C0561-71 code indicates a problem in the Electronic Stability Control System due to invalid data received by the EBCM.
  • What are common symptoms of this code?
    Symptoms include deactivated ABS and traction control systems, unusual brake behavior, and related service messages.
  • How can I resolve this code?
    Start with DIY checks of wheel speed sensors and brake pressure settings. If unresolved, seek professional diagnosis.
  • What preventive measures can I take?
    Regular diagnostic checks, daily inspections, and maintaining proper brake pressure can help prevent this issue.

By understanding the implications of the C0561-71 code and following these troubleshooting steps, you can ensure your vehicle remains safe and reliable on the road.