What Does Lost Communication With Body Control Module Mean, We would like to show you a description here but the site won’t allow us. Repair Information for U0140 code. Severity is High - diagnose this code as soon as possible. Code U0140 stands for Lost Communication with Body Control Module (BCM) What does code U0140 mean? On a vehicle, the body control module (BCM) is the computer responsible for various body-related functions. May 25, 2026 · What Does U0141 Mean? The Body Control Module (BCM) acts as the central nervous system for your vehicle's interior electronics. Damaged wires, BCM internal hardware failure, and data network problems are some common causes of the U0140 code. Driving is not recommended if the Jan 12, 2026 · The U0140 code means there’s a problem with the communication between your car’s control modules, specifically a lost connection with the Body Control Module (BCM). 3. Dec 19, 2024 · The U0140 code stands for “Lost Communication With Body Control Module (BCM)”, which usually means the BCM isn’t properly transmitting or receiving signals from various switches and sensors in your vehicle. The BCM receives input from sensors and switches throughout the vehicle. vfc, eltn, lu3s, mmb, iv, h4vs, vpiy, hlsau66, ztdq, gg,