U1995 – Invalid Data Received from Vehicle Control Module.

The ODBII code U1995 indicates that the vehicle’s control module has received invalid or corrupted data from another control module, which may affect communication between modules.

The severity of ODBII code U1995 is generally considered moderate.

Common Causes For: U1992 U1992: “Inter-Module Communication Failure”

• Faulty Vehicle Control Module (VCM)
• Poor or damaged wiring/connectors
• Corrupted data communication
• Faulty or incompatible aftermarket components
• Issues with the OBDII port
• Software glitches or updates needed
• Interference from other electronic devices

Common misdiagnosis for U1995 Invalid Data Received from Vehicle Control Module.

• Faulty Vehicle Control Module (VCM)
• Wiring issues or short circuits
• Faulty sensors (e.g., wheel speed sensors)
• Communication issues with other modules
• Incorrectly programmed or updated software
• Faulty diagnostic tools or equipment
• Battery or power supply issues
• Grounding problems

Common Troubleshooting Steps

The OBD-II code U1995 indicates that there is invalid data being received from the vehicle control module (VCM). This can be caused by various issues, including communication problems between modules, wiring issues, or even a faulty control module. Here are some common troubleshooting steps to diagnose and resolve the issue:

• Check for Other Codes:
• Use an OBD-II scanner to check for any other trouble codes that may be present. Addressing other codes may resolve the U1995 code.
• Inspect Wiring and Connectors:
• Visually inspect the wiring and connectors related to the VCM and other modules. Look for signs of damage, corrosion, or loose connections.
• Ensure that all connectors are securely plugged in and that there are no bent pins.
• Check for Communication Issues:
• Use a scan tool to check if other modules are communicating properly. If other modules are not responding, there may be a communication issue on the CAN bus.
• Verify that the CAN bus wiring is intact and that there are no shorts or opens in the wiring.
• Test the Control Module:
• If the wiring and connectors are in good condition, the VCM itself may be faulty. Testing the module may require specialized equipment or a professional technician.
• If possible, compare the VCM with a known good unit to see if the problem persists.
• Inspect Power and Ground:
• Check the power and ground circuits for the VCM. Ensure that the module is receiving the correct voltage and that the ground connections are solid.
• Update Software/Firmware:
• In some cases, a software update for the control module may be necessary. Check with the manufacturer for any available updates.
• Clear Codes and Test Drive:
• After performing any repairs or inspections, 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 U1995 code 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, it may be best to consult a professional technician who has experience with your vehicle’s make and model. By following these steps, you should be able to identify and resolve the underlying issue causing the U1995 code.