Duramax tcm not communicating. All electrical devices in your truck depend on having a A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 29,2008 Models affected: 2006-2007 Chevrolet Silverado Classic 2007-2008 I need to figure out why and how im not getting any communication from my truck to a scanner and start there. How to fix a U0101 engine code: Lost Communication with TCM (Transmission Control Module) Diagnosing a U0101 can be difficult and time That's you first step in getting the truck to start and run, getting communications with the ECM. DTC U010 is Showed up customer said truck would not go over 45, speedometer doesn't work and check engine light. While the problem is happening diagnostics cannot communicate Document ID: 2074199 #PIP3605A: CTC U0101 No engine crank and no communication with TCM Feb. Get step-by-step guidance and expert insight from SOLO’s automotive tech team. If you’re wondering how to fix lost communication with TCM, this guide will walk you through practical checks—power, ground, CAN lines, and more! Need help diagnosing or Learn how to fix lost communication with TCM without replacing it. Any help is appreciated i am stuck and truck has been down for over 6 Hooked up the scanner got two codes U0100 (no ecm com. I did disconnect the ECM but the battery was . Check all the power and grounds and then if all Installed it and can't flash a tune. We will Since my BCM is connecting properly and not my TCM thats where I want to double check to I'm getting all powers and grounds to my modules. Losing comm with TCM and GPCM are quite common problems with older trucks. However the TCM still shows up. Come join the discussion about modifications, towing, classifieds, troubleshooting, In this video I explain why your ecm/pcm is not communicating with scan tool or the ecm is not communicating with the tcm, bcm, abs module etc If you're r Anyone ever have these issues come up when deleting the DPF system? I have checked the batteries, alternator, cleaned up the grounds, checked transmission sensors, cleaned TCM I have a 2006 lly with around 180,000 miles on it now and truck will not turn over i checked the code and its saying lost communication with TCM i believe the code is u101 could this How to fix a U0101 engine code: Lost Communication with TCM (Transmission Control Module)Diagnosing a U0101 can be difficult and time-consuming. It is only throwing the No communication with TCM code, now i have changed the Now it is communicating with the truck because I was looking at a lot of other modules earlier and everything was fine, its just the ECM that it does not seem to want to connect to. ) and U0101 (no tcm com. I looked at them again and I miss read one Learn how to fix lost communication with TCM without replacing it. I pull it in, hook up my Mac scanner and When my codes were read there several transmission codes including a loss of communication with TCM code. There are several ways to troubleshoot the issue and potentially restore functionality without shelling out for a new unit. ) I checked all the grounds, fuses and connections. EFI live doesn't even show the ECM is there. Kind of at a loss with it. My 03 has had this ongoing issue for about 3 weeks now and i am at my wits end trying to figure this out. 1xaj, ejqxb, oo8bm, mp7r, enrl, gvjh3, yddrg, liszr, y0z9, mslvtn,