U0105
Lost Communication With Fuel Injector Control Module
U0105 is an OBD-II diagnostic trouble code meaning: Lost Communication With Fuel Injector Control Module. Common causes: open or short circuit in the communication circuit, faulty injector control module. Estimated repair cost: $33–167.
Symptoms
- Engine won't start
- Engine failures
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
Causes
- Open or short circuit in the communication circuit
- Faulty injector control module
- Module power problems
- ECU malfunction
- Corrosion of connector contacts
How to Fix
- Check the integrity of the wiring harness to the module
- Check the power supply and ground of the module
- Inspect connectors for corrosion
- Check the CAN bus for a break
- Diagnose/replace the injector control module
Related codes
Error U0105 by Vehicle Brand
FAQ
What does the U0105 code mean?
U0105 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Fuel Injector Control Module
What causes a U0105 error code?
The most common causes of U0105 include: Open or short circuit in the communication circuit; Faulty injector control module; Module power problems; ECU malfunction.
How do I fix a U0105 diagnostic trouble code?
To fix U0105: Check the integrity of the wiring harness to the module. Check the power supply and ground of the module. Inspect connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0105?
Do not drive — repair immediately
How much does it cost to fix U0105?
The estimated repair cost for U0105 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat