U2795 – Invalid Data Received from Vehicle Control Module.

The ODBII code U2795 indicates that the vehicle’s control module has received invalid or corrupted data from another control module, which may affect vehicle performance or functionality.

The severity of ODBII code U2795 is generally considered moderate.

Common Causes For: U2794 Lost Communication with the Hybrid Powertrain Control Module (HPCM) A.

• Faulty Vehicle Control Module (VCM)
• Corrupted or damaged software in the VCM
• Poor electrical connections or wiring issues
• Faulty sensors sending incorrect data
• Communication issues between modules
• Low battery voltage or power supply problems
• Interference from aftermarket devices or modifications

Common misdiagnosis for U2795 Invalid Data Received from Vehicle Control Module.

• Faulty Vehicle Control Module (VCM)
• Wiring issues or shorts in the communication lines
• Faulty sensors related to the VCM
• Issues with the Engine Control Module (ECM)
• Problems with the Transmission Control Module (TCM)
• Corrupted software or firmware in the control modules
• Battery or power supply issues affecting module communication
• Incorrectly installed aftermarket accessories or modifications

Common Troubleshooting Steps

When dealing with the OBD-II code U2795, which indicates “Invalid Data Received from Vehicle Control Module,” it’s important to follow a systematic approach to troubleshoot the issue. Here are common troubleshooting steps you can take:

• 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.
• Inspect Wiring and Connectors: Examine the wiring and connectors related to the vehicle control module (VCM) and any associated modules. Look for signs of damage, corrosion, loose connections, or frayed wires.
• Check for Software Updates: Verify if there are any software updates available for the vehicle’s control modules. Manufacturers sometimes release updates to fix bugs or improve communication between modules.
• Inspect the Control Module: If the wiring and connectors are in good condition, inspect the vehicle control module itself for any signs of damage or failure. This may include checking for burnt components or water intrusion.
• Test the Control Module: If possible, perform a bench test on the control module to ensure it is functioning correctly. This may require specialized equipment or tools.
• Check Power and Ground: Ensure that the control module is receiving the correct power and ground signals. Use a multimeter to check voltage and ground continuity.
• Clear Codes and Test Drive: After performing any repairs or inspections, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns.
• Check for Intermittent Issues: Sometimes, the issue may be intermittent. Monitor the vehicle’s performance and check for any patterns that may indicate when the code appears.
• Consult Technical Service Bulletins (TSBs): Look for any TSBs related to the U2795 code for your specific vehicle make and model. Manufacturers may have documented common issues and solutions.
• Seek Professional Help: If the problem persists after performing the above steps, consider seeking assistance from a qualified mechanic or dealership. They may have access to advanced diagnostic tools and resources. By following these steps, you can systematically identify and resolve the issue associated with the U2795 code.