• Warning lights on the dashboard
• Intermittent operation of vehicle systems
• Loss of specific vehicle functions
• Faulty control module
• Damaged wiring or connectors
• Network communication error
OBD-II: On-Board Diagnostics, a standard system for vehicle self-diagnosis.
Control Module: An electronic component that manages specific functions in the vehicle.
• U0100
• U0121
This code means that the car's computer is having trouble talking to one of the car's parts. It's like when your phone can't connect to Wi-Fi.
The U3535 code indicates a communication issue between the vehicle's control modules.
U3535 is a network communication fault code that signifies a loss of communication with a specific control module. This could be due to wiring issues, a malfunctioning module, or a network fault.
• Check for additional codes
• Inspect wiring and connectors
• Test the suspect control module
• Repair or replace damaged wiring
• Replace faulty control module
• Reprogram the control module
• OBD-II scanner
• Multimeter
• Wiring diagram
$150 - $500
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regular maintenance checks
• Inspect wiring for damage
• Ensure software updates are applied
Network Communication Issue
• Have a professional diagnose the issue
• Avoid DIY repairs unless experienced
• Keep a record of repairs and codes
Check vehicle warranty for coverage on electronic components.
U-codes have become more prevalent with the increase in vehicle electronics and networked systems.
Moderate – While the car may still function, unresolved communication issues can lead to further problems.
Driving with unresolved communication issues may lead to unexpected vehicle behavior.
• Vehicle parked and engine off
• Use of diagnostic equipment
The specific control module location varies by vehicle make and model, often found under the dashboard or in the engine bay.
Q: Can I drive with a U3535 code?
A: It's possible, but not recommended as it may lead to further issues.
Q: How do I clear a U3535 code?
A: Fix the underlying issue and use an OBD-II scanner to clear the code.
