The automobile fault code u0140 can be caused by a faulty CAN communication system, BCM, harness, or electrical connection. The automobile fault code U0140 can be caused by a faulty Controller Area Network (CAN) Communication System. It can also be caused by a faulty Body Control Module (BCM).

2016年12月30日 · The u1041 is a loss of communication between the brake control module and body control module. The u1040 is loss of communication between the body control module and engine control module. Looks like you've either pulled a connection apart or have blown a fuse. A bad ground on any of those modules will also cause the same problem.

2024年12月19日 · 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. Damaged wires, BCM internal hardware failure, and data network problems are some common causes of the U0140 code.

Code U0140 pertains to the BCM or the wiring to the BCM from the engine control module (ECM). The code, depending on the year, make and model of the vehicle, may mean that the BCM is bad, that the BCM is not receiving or sending a signal, the BCM harness has an open or short, or that the BCM is not communicating with the ECM via the controller ...

2024年9月15日 · 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). The BCM is important because it handles things like locks, lights, and interior gadgets.

The U0140 code for Chevrolet vehicles indicates that there has been a communication failure between the Engine Control Module (ECM) and the Body Control Module (BCM). The Body Control Module is responsible for managing various functions related to the vehicle's body, such as lighting, door locks, and security systems.

Code U0140 indicates the BCM is not receiving or transmitting messages on the CAN bus. Get it diagnosed by a professional. Find a shop in your area. Code U0140 is typically caused by one of the following: Sometimes U0140 can pop up intermittently, or it can result from a dead battery.

If DTC U0140 sym00 or U0073 sym71 is set in any of the high speed modules, refer to "Testing for Electrical Intermittents" in the service manual to reset the DTC and diagnose the location of the fault. Do NOT replace the BCM until normal diagnostics are performed.

2020年6月29日 · Repair Information for U0140 Chevrolet code. Learn what Lost Communication With Body Control Module means, location and how to repair?

The main, and most common symptom of a U0140 error code is the illumination of your car’s check engine light. You might also notice that certain body control functions no longer work as they ...