• Warning lights on the dashboard
• Malfunction of safety features
• Intermittent vehicle operation issues
• Faulty wiring or connectors
• Defective active safety module
• Network communication failure
OBD-II: On-Board Diagnostics, a system to monitor vehicle performance
Module: An electronic component that controls specific vehicle functions
• U0073
• U0100
Your car has a network problem, like when your phone can't connect to Wi-Fi. It's having trouble talking to some parts inside.
This code indicates a communication issue within the vehicle's control modules.
U0086 is a diagnostic trouble code (DTC) that signifies a loss of communication with the active safety module. The vehicle's control modules communicate over a network, and this code suggests that one of these modules is not responding as expected.
• Check for other related codes
• Inspect wiring and connectors for damage
• Test the active safety module for functionality
• Repair or replace damaged wiring
• Replace the active safety module if faulty
• Reprogram the module if necessary
• OBD-II scanner
• Multimeter
• Wiring repair tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Ensure proper connections
• Avoid water exposure to electronics
Network Communication Issue
• Consult a professional mechanic
• Avoid DIY repairs unless experienced
• Regularly check for updates on vehicle software
Check if the vehicle's warranty covers electronic components.
This code has been more common in vehicles with advanced safety systems due to increased network complexity.
Moderate – It should be addressed soon to ensure safety features work properly.
Driving with malfunctioning safety features may not comply with safety regulations.
• Vehicle in park
• Ignition in the 'on' position
The active safety module is usually located under the dashboard or in the engine compartment.
Q: Can I drive with code U0086?
A: It's not recommended as safety features may not function properly.
Q: Will resetting the code fix the problem?
A: Resetting might clear the code temporarily, but the underlying issue needs to be fixed.
