• Check Engine Light is on
• Engine may not start
• Poor engine performance
• Faulty Fuel Injector Control Module
• Damaged or corroded wiring or connectors
• Faulty Engine Control Module (ECM)
ECM: Engine Control Module
FICM: Fuel Injector Control Module
CAN bus: Controller Area Network bus, a communication network in vehicles
• U0100
• U0101
Your car's computer can't talk to the fuel injector control module, like when your phone can't connect to Wi-Fi.
The vehicle's main computer has lost communication with the fuel injector control module.
U0105 is a diagnostic trouble code indicating a loss of communication with the Fuel Injector Control Module (FICM). This means the main engine control module (ECM) is unable to communicate with the FICM over the vehicle's Controller Area Network (CAN) bus.
• Check for other diagnostic trouble codes
• Inspect wiring and connectors for damage or corrosion
• Test the Fuel Injector Control Module
• Repair or replace damaged wiring or connectors
• Replace the Fuel Injector Control Module
• Reprogram or replace the Engine Control Module if necessary
• OBD-II scanner
• Multimeter
• Wiring diagram
$200 - $1000
Moderate
• Ford F-250
• Chevrolet Silverado
• GMC Sierra
• Regularly inspect and maintain wiring and connectors
• Keep electronic components clean and dry
• Use quality fuel to prevent injector issues
Communication Error
• Avoid driving the vehicle until the issue is resolved
• Consult a professional mechanic for diagnosis
• Check vehicle warranty for potential coverage
Check with your vehicle manufacturer for specific warranty coverage related to electronic components.
U0105 has been a common issue in vehicles with complex electronic systems, especially in models with separate fuel injector control modules.
High – This code can lead to engine performance issues and should be addressed promptly.
Driving with this code may cause safety issues due to potential engine failure. Always ensure repairs are conducted by a qualified technician.
• Vehicle must be running
• Ensure all electrical systems are operational
The Fuel Injector Control Module is typically located near the engine, often mounted on or near the intake manifold.
Q: Can I drive my car with code U0105?
A: It's not recommended as it can lead to engine performance issues or failure.
Q: How do I reset the U0105 code?
A: After repairs, use an OBD-II scanner to clear the code, but it will return if the issue is not fixed.
