OBD-II Network Error Code U0105: How to Fix It

Q: Can I drive with error code U0105?

You should avoid driving with code U0105 as it indicates communication problems with the fuel injection system. This can cause poor performance, stalling, or engine damage. Have it diagnosed promptly.

Q: What causes U0105 error code?

Common causes include faulty wiring connections, corroded connectors, low battery voltage, blown fuses, or a failed fuel injector control module. Sometimes software glitches can also trigger this code.

Q: How much does it cost to fix U0105?

Repair costs vary from $100-200 for simple fixes like fuses or connections, up to $500-1200 if the fuel injector control module needs replacement. Diagnostic fees typically run $100-150.

Q: Will disconnecting the battery fix U0105?

Disconnecting the battery may temporarily clear the code if it's caused by a software glitch, but it will return if there's an underlying hardware problem. This is a diagnostic step, not a permanent fix.

Q: Is U0105 the same as P0105?

No, U0105 is a network communication code while P0105 relates to manifold air pressure sensors. U-codes indicate communication problems between modules, while P-codes indicate powertrain component issues.

Abstract

Error code U0105 indicates your vehicle's main computer has lost communication with the fuel injector control module. This serious issue can cause poor engine performance, rough idling, or even prevent your car from starting properly.