- U0101 gmc terrain. This loss of communication can lead to various issues with the vehicle's performance and drivability. How to fix a U0101 engine code: Lost Communication with TCM (Transmission Control Module) Diagnosing a U0101 can be difficult and time-consuming. Due to the cause of the condition, and the positions of the wires in the engine harness, it is unlikely that more than one circuit and/or fuse will be affected by the condition. Oct 14, 2024 · If your supporting codes, U0101 and U0140, are now gone from the ECM and BCM, we know two things. Oct 6, 2023 · Fault code U0101 indicates a concerning loss of communication between the transmission control module and other modules, often causing secondary symptoms. When a vehicle has Lost Communication with Transmission Control Module (TCM) What does that mean? This is a generic communication system diagnostic trouble code that applies to most vehicle makes and models, including but not limited to Chevrolet, Cadillac, Ford, GMC, Mazda, and Nissan. 5K views 7 replies 4 participants last post by repairman54 Sep 21, 2023 Jun 21, 2021 · U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the GMC Terrain). This code means that the Transmission Control Module (TCM) and other control modules on the vehicle are not talking to each . Jul 15, 2022 · Got it all done and fired it up it ran rough for a minute then I got a new code u0101 for tcm not communicating and now it just cranks no start. Jul 12, 2021 · It means that your Terrain's TCM (Transmission Control Module) can't communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the TCM itself. rwl lbymsrg 6gyr hynjvh lnbf8 9nv yu 5f rcp 8z5
