• Fuel gauge not working properly
• Check engine light on
• Inaccurate fuel level readings
• Faulty fuel level control module
• Wiring issues in the communication network
• Faulty connections or connectors
OBD-II: On-Board Diagnostics, a standard system for self-diagnosing vehicle issues.
Module: A component in the vehicle's electronic system that controls specific functions.
• U0447
• U0448
Your car's computer is having trouble understanding a message from one of the parts that controls the fuel level. It's like when you can't understand a friend because they're talking too quietly.
This code indicates that there is invalid data received from the fuel level control module.
The U0446 code is set when the vehicle's control modules are unable to communicate properly due to receiving invalid data from the fuel level control module. This can be caused by issues in the communication network or faults in the module itself.
• Check for other codes that might indicate a wiring issue.
• Inspect the wiring and connectors for damage or corrosion.
• Test the fuel level control module for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the fuel level control module if faulty.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain vehicle wiring.
• Ensure connectors are clean and secure.
• Avoid driving with low fuel levels to prevent sensor damage.
Communication Error
• Have your vehicle inspected by a professional if you notice fuel gauge issues.
• Regularly check for any warning lights on your dashboard.
Check with your vehicle manufacturer for warranty coverage on electronic components.
U0446 is a relatively common code in vehicles with advanced electronic systems, often related to communication issues within the vehicle's network.
Moderate – It should be addressed soon to avoid running out of fuel unexpectedly.
Driving with inaccurate fuel readings can lead to unexpected vehicle shutdowns, which may be dangerous.
• Vehicle ignition in the ON position.
• Fuel level control module connected and powered.
The fuel level control module is typically located near the fuel tank or integrated into the fuel pump assembly.
Q: Can I drive with a U0446 code?
A: It's possible to drive, but it's not recommended as you may run out of fuel unexpectedly.
Q: How do I reset the U0446 code?
A: After addressing the issue, you can reset the code using an OBD-II scanner.
