U0256
Lost Communication With Front Controls Interface Module A
U0256 is an OBD-II diagnostic trouble code meaning: Lost Communication With Front Controls Interface Module A. Common causes: open or short circuit in wiring harness, poor contact in fcim module connectors. Estimated repair cost: $56–167.
Symptoms
- Inoperability of some front-end systems
- The Check Engine light comes on
- Climate control malfunctions
- Audio system problems
- No response to front panel control buttons
Causes
- Open or short circuit in wiring harness
- Poor contact in FCIM module connectors
- Malfunction of the control module itself
- Module power problems
- Software errors in the ECU
How to Fix
- Check the integrity of the wiring harness to the FCIM module
- Inspect and clean the connector contacts
- Check fuses and relays associated with the module
- Test the power supply and ground of the module
- If necessary, replace the FCIM module
Related codes
Error U0256 by Vehicle Brand
FAQ
What does the U0256 code mean?
U0256 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Front Controls Interface Module A
What causes a U0256 error code?
The most common causes of U0256 include: Open or short circuit in wiring harness; Poor contact in FCIM module connectors; Malfunction of the control module itself; Module power problems.
How do I fix a U0256 diagnostic trouble code?
To fix U0256: Check the integrity of the wiring harness to the FCIM module. Inspect and clean the connector contacts. Check fuses and relays associated with the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0256?
Yes, but get it checked soon
How much does it cost to fix U0256?
The estimated repair cost for U0256 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat