U2659 Invalid Data Received from Vehicle Dynamics Control Module

Definition

Common causes

• Faulty Vehicle Dynamics Control Module (VDCM)
• Poor or damaged wiring/connectors between the VDCM and the ECU
• Corrupted or incompatible software in the VDCM
• Malfunctioning sensors related to vehicle dynamics (e.g., wheel speed sensors)
• Communication issues within the CAN bus network
• Low battery voltage or electrical system issues
• Faulty ECU (Engine Control Unit) or other related control modules

Common misdiagnoses

• Faulty ABS module
• Incorrect wheel speed sensor readings
• Wiring issues or shorts in the communication lines
• Faulty Vehicle Dynamics Control Module (VDCM)
• Issues with the power supply or ground connections
• Problems with the Engine Control Module (ECM)
• Incorrectly calibrated or configured sensors
• Software or firmware issues in the control modules

Troubleshooting steps

1. 1. Check for Additional Codes

   Use an OBD-II scanner to check for any other trouble codes that may be present. Sometimes, multiple codes can provide more context for the issue

2. 2. Inspect Wiring and Connectors

   Examine the wiring and connectors related to the Vehicle Dynamics Control Module (VDCM). Look for signs of damage, corrosion, or loose connections that could affect communication

3. 3. Verify Power and Ground

   Ensure that the VDCM is receiving the proper power and ground. Use a multimeter to check voltage and ground continuity at the module's connectors

4. 4. Check for Software Updates

   Sometimes, the issue can be related to outdated software in the vehicle's control modules. Check with the manufacturer for any available updates for the VDCM or other related modules

5. 5. Inspect the Vehicle Dynamics Control Module

   If the wiring and connections are good, the issue may lie within the VDCM itself. Inspect the module for any signs of physical damage or water intrusion

6. 6. Perform a Network Test

   Use a scan tool to check the communication between the VDCM and other modules on the CAN bus. Look for any communication errors or issues with other modules that may affect the VDCM

7. 7. Clear Codes and Test Drive

   After performing the above checks, clear the trouble codes and take the vehicle for a test drive. Monitor for the reoccurrence of the U2659 code

8. 8. Consult Technical Service Bulletins (TSBs)

   Check for any TSBs related to the U2659 code or the VDCM for your specific vehicle make and model. Manufacturers may have specific recommendations or known issues

9. 9. Replace the Module (if necessary)

   If all other troubleshooting steps have been exhausted and the issue persists, consider replacing the Vehicle Dynamics Control Module. Ensure that the replacement module is compatible with your vehicle

10. 10. Professional Diagnosis

    If you are unable to resolve the issue, it may be best to consult a professional mechanic or technician who has experience with your vehicle's systems. By following these steps, you can systematically identify and address the root cause of the U2659 code