• Warning lights on the dashboard
• Loss of certain vehicle functions
• Intermittent vehicle performance issues
• Faulty control module
• Damaged wiring or connectors
• Network communication issues
Control Module: An electronic device in a vehicle that manages specific functions.
Data Bus: A communication system that transfers data between components inside a vehicle.
• U0100
• U0140
This code means that one of the car's computers is having trouble talking to another computer. It's like when two friends are trying to call each other, but the phone line isn't working.
U0651 indicates a communication problem between control modules in the vehicle.
The U0651 code is a diagnostic trouble code (DTC) that signifies a loss of communication with the control module responsible for monitoring and controlling certain vehicle functions. This code is set when the data bus network cannot communicate with a specific module.
• Check for additional codes that may indicate the specific module affected.
• Inspect wiring and connectors for damage or corrosion.
• Test the data bus network for continuity and proper communication.
• Repair or replace damaged wiring or connectors.
• Replace the faulty control module.
• Reprogram or update the module software if necessary.
• OBD-II scanner
• Multimeter
• Diagnostic software
$150 - $600
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regular maintenance checks of the vehicle's electrical system.
• Ensure all software updates are applied.
• Avoid modifications that may affect the vehicle's communication network.
Communication Error
• Have the vehicle inspected by a professional if you notice any dashboard warnings.
• Do not ignore the problem as it may affect vehicle performance.
• Keep a record of any recurring issues for future reference.
Check with the vehicle manufacturer or dealer for specific warranty coverage on control modules.
U0651 is a relatively common code that has been reported across various makes and models, typically indicating issues with the vehicle's communication network.
Moderate – It may not immediately affect drivability, but should be addressed to avoid further issues.
Ignoring this code could lead to safety issues if critical systems are affected. Always follow manufacturer guidelines for repairs.
• Vehicle in 'On' position with engine running.
• All electrical systems functioning normally.
The affected control module is typically located in the vehicle's engine bay or under the dashboard.
Q: What does U0651 mean?
A: U0651 means there is a communication problem between one of the vehicle's control modules and the main network.
Q: Can I drive with a U0651 code?
A: While you may still be able to drive, it's best to have the issue checked as it could affect vehicle performance.
