U0256

Lost Communication With Front Controls Interface Module A

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

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

U0255 U0257 U0258