• Warning lights on the dashboard
• Intermittent operation of vehicle systems
• Failure of certain electronic functions
• Faulty wiring or connectors
• Malfunctioning control module
• Software or firmware issues
Control Module: A device that controls various systems in the vehicle.
OBD-II: On-Board Diagnostics, a standardized system for vehicle diagnostics.
• U0100
• U0121
This code means that the car's computer is having trouble talking to one of the parts in the car. It's like when your phone can't connect to the internet.
U3511 indicates a communication issue between the vehicle's control modules.
U3511 is a diagnostic trouble code that signifies a loss of communication between the vehicle's control modules, which could affect the operation of various systems.
• Check for other related codes
• Inspect wiring and connectors for damage
• Test the affected control modules
• Repair or replace damaged wiring
• Update or reprogram the control module
• Replace the faulty control module
• OBD-II scanner
• Multimeter
• Diagnostic software
$100 - $500
Moderate
• Ford Focus
• Chevrolet Malibu
• Toyota Camry
• Regular maintenance checks
• Keep software updated
• Inspect wiring regularly
Communication Error
• Ensure all software updates are installed
• Have a professional inspect the vehicle if warning lights appear
Check with the vehicle manufacturer for warranty coverage on control modules.
U3511 is a relatively uncommon code, often associated with newer vehicle models with complex electronic systems.
Moderate – It should be addressed soon to avoid potential system failures.
Driving with unresolved communication issues may lead to unexpected vehicle behavior. Ensure repairs are conducted by a qualified technician.
• Vehicle ignition on
• Ensure all systems are powered
The control modules are typically located throughout the vehicle, including under the dashboard and in the engine compartment.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to malfunctioning vehicle systems and potentially unsafe driving conditions.
Q: Can I fix this code myself?
A: While some basic checks can be done, it's recommended to have a professional diagnose and repair communication issues.
