U1496 – Invalid Data Received from Vehicle Control Module.
The ODBII code U1496 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 U1496 is generally considered moderate.
Common Causes For: U1493 Lost Communication with Battery Energy Control Module (BECM)”.
- Faulty Vehicle Control Module (VCM)
- Poor or damaged wiring/connectors
- Corrupted software or firmware in the VCM
- Communication issues between modules
- Electrical interference or noise
- Low battery voltage or power supply issues
- Faulty sensors sending incorrect data
- Grounding issues in the vehicle’s electrical system
Common misdiagnosis for U1496 Invalid Data Received from Vehicle Control Module.
- Faulty Vehicle Control Module (VCM)
- Wiring issues or shorts in the communication lines
- Faulty sensors or actuators
- Corrupted software or firmware in the VCM
- Issues with the power supply to the VCM
- Problems with other control modules affecting communication
- Incorrectly installed aftermarket accessories or modifications
Common Troubleshooting Steps
The OBD-II code U1496 indicates that the vehicle’s control module has received invalid data from another control module. This can be caused by various issues, including communication problems between modules, wiring issues, or a malfunctioning control module. Here are some common troubleshooting steps to diagnose and resolve the issue:
- 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: Examine the wiring and connectors associated with the control modules involved. Look for signs of damage, corrosion, loose connections, or frayed wires. Repair or replace any damaged components.
- Check for Software Updates: Sometimes, the issue can be resolved by updating the software of the control modules. Check with the vehicle manufacturer for any available updates.
- Inspect the Control Modules: If the wiring and connectors are in good condition, the issue may lie with one of the control modules. Inspect the modules for physical damage or signs of water intrusion.
- Perform a Hard Reset: Disconnect the vehicle’s battery for a few minutes to reset the control modules. Reconnect the battery and see if the code reappears.
- Check for Ground Issues: Ensure that all control modules have a good ground connection. Poor grounding can lead to communication issues.
- Test the Control Modules: If you suspect a specific control module is malfunctioning, you may need to test it using specialized diagnostic equipment or replace it with a known good module to see if the problem persists.
- Scan for Communication Issues: Use a scan tool to monitor the communication between modules. This can help identify if a specific module is not responding or sending invalid data.
- Consult Technical Service Bulletins (TSBs): Check for any TSBs related to the U1496 code for your specific vehicle make and model. Manufacturers may have issued guidance on common issues and fixes.
- Seek Professional Help: If you are unable to diagnose or resolve the issue, consider taking the vehicle to a qualified technician or dealership for further diagnosis. By following these steps, you should be able to identify the root cause of the U1496 code and take appropriate action to resolve it.