U2694 – Invalid Data Received from Vehicle Dynamics Control Module.

The ODBII code U2694 indicates that the vehicle’s control module has received invalid or corrupted data from the Vehicle Dynamics Control Module, which may affect the vehicle’s stability and handling systems.

The severity of ODBII code U2694 is generally considered moderate.

Common Causes For: U2693 Invalid Data Received from Vehicle Dynamics Control Module.

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• Corrupted or outdated software in the VDCM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

Common misdiagnosis for U2694 Invalid Data Received from Vehicle Dynamics Control Module.

• Faulty ABS module
• Defective wheel speed sensors
• Malfunctioning traction control system
• Incorrectly diagnosed steering angle sensor issues
• Wiring or connector problems
• Battery or charging system issues
• Faulty engine control module (ECM)
• Incorrectly diagnosed vehicle stability control (VSC) issues

Common Troubleshooting Steps

When dealing with the OBD-II code U2694, which indicates “Invalid Data Received from Vehicle Dynamics Control Module,” it’s important to follow a systematic approach to troubleshoot the issue. Here are common troubleshooting steps:

• Check for Additional Codes:
• Use an OBD-II scanner to check for any other trouble codes that may be present. This can provide more context and help identify related issues.
• Inspect Wiring and Connectors:
• Visually inspect the wiring and connectors associated with the Vehicle Dynamics Control Module (VDCM). Look for signs of damage, corrosion, or loose connections.
• Pay special attention to the ground connections, as poor grounding can lead to communication issues.
• Check the Vehicle Dynamics Control Module:
• Ensure that the VDCM is functioning properly. If possible, test the module with a known good unit or perform a bench test if applicable.
• Check for any software updates or recalls related to the VDCM.
• Inspect Related Modules:
• Since the VDCM communicates with other modules, check the functionality of related modules (e.g., ABS, traction control, stability control). A fault in one of these modules can affect the VDCM.
• Scan for Communication Issues:
• Use a scan tool to monitor live data and check for communication between the VDCM and other modules. Look for any irregularities in the data being transmitted.
• If possible, perform a network test to ensure that the CAN bus (Controller Area Network) is functioning correctly.
• Check Power and Ground:
• Verify that the VDCM is receiving the correct power supply and ground. Use a multimeter to check voltage levels at the module’s connector.
• Clear Codes and Test Drive:
• After performing any repairs or adjustments, clear the trouble codes and take the vehicle for a test drive to see if the code returns.
• Consult Technical Service Bulletins (TSBs):
• Check for any TSBs related to the U2694 code or the VDCM for your specific vehicle make and model. Manufacturers may have specific recommendations or known issues.
• Professional Diagnosis:
• If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have access to specialized diagnostic tools and resources. By following these steps, you can systematically identify and resolve the issue related to the U2694 code.