U0256
Lost Communication With Front Controls Interface Module "A"
DTC U0256, sometimes indicated as U025600 is an OBD diagnostic trouble code indicating a generic fault with the vehicle user network.
- U0256: Lost Communication With Front Controls Interface Module "A"
- U0256: Lost communication with front controls interface module A
- U0256 00: Lost communication with front controls interface module A
Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.
2013 FORD FUSION with 58810.0 miles
My 2013 Ford Fusion is experiencing an issue with the climate control system and the window controls. I have lost communication with the 'front control interface module', 'door control module a', and 'door control module b'. When this happens, my ecm displays the following codes, P193E: a/c clutch request signal, U0199: lost communication with door control module a, U0200: lost communication with door control module b, and U0256: lost communications front controls interface module. This happens quite frequently, and it has happened when my car is in motion and when my car is stationary. Sometimes this happens when i start my car and sometimes this happens when i am driving. To be clear, i have no air conditioning, no ventilation, and i can not roll down my windows. To make matters worse, this seems to happen more frequently when the temperature outside is towards 90 or more degrees fahrenheit. This means the interior temperature of the care gets to be very hot. In my experience, the only way to fix this issue is to disconnect the battery terminals and then reconnect them but this only offers a temporary fix to the problem.
EXTERIOR LIGHTING, UNKNOWN OR OTHER ELECTRICAL SYSTEM