U0101 code duramax. Unplugged all trans May 14, 2018 · I have a 07 classic duramax with the EFI Live. Truck was also Oct 5, 2010 · He is very helpful to anyone! If you have a 700 code-- there are other trans codes-- start by having the trans codes read. Cel was u0101 lost communication to tcm. I have had this code U0101 (loss of communication with TCM) . After backing out put truck in drive with a very violent shift it went into drive. The P0700 just triggers the check light. What should I be checking or seeing for input or signal voltage to the TCM? Google search shows pins 75 and 54 are 5volt and 77 is input, is that correct? Any help. I watched a couple videos on you tube and checked a few pins for voltage or ground continuity at the TCM plug. This is a supporting code, aka a clue. Also check the harness where it goes over the trans, sometimes the wire gets cut or wears and shorts. When I scanned it, it only showed the U0101 code. Feb 16, 2015 · Not saying its the same for you but I had a U0101 code and occasional limp P0700 Mike was nice enough to give me his 2001 TCM and it all went away. " Dec 16, 2012 · TCM Ground - U0101 code Jump to Latest 40K views 4 replies 4 participants last post by G2GBY Dec 27, 2017 ffden Discussion starter CODE U0101 2006-2015 Chevy GMC Duramax w/ 6 Speed Allison Trans: TCM Failure Connector Pinout How to Replace Allison Transmission Internal Wiring Harness to Fix Pass Through Connector Fluid Leak Aug 22, 2011 · Question, will a bad starter solenoid set a U0101, lost communication with TCM, DTC? The reason I'm asking is because I took my truck out on Saturday 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. Feb 25, 2019 · U0101 lost communication with TCM Jump to Latest 24K views 6 replies 6 participants last post by thedubs Oct 11, 2019 J Aug 19, 2024 · The U0101 code for Chevrolet vehicles indicates that there is a communication problem between the Engine Control Module (ECM) and the Transmission Control Module (TCM). Found one ( pin 63) that should ha e had 12 volts with the ignition on. Has lost communication with one or more modules. Jun 26, 2020 · For probably the last 2 weeks I have gotten U0101 and P0880 codes shortly after starting my truck and letting it warm up. Feb 25, 2018 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Feb 9, 2024 · Have an 05 lly, had wires on the grey (c2) tcm plug with 4 wires rubbed through. Put truck in reverse to back out. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Code u0101 on DURAMAX means the TCM (Transmission Control Module). There are other supporting codes, such as U0100, in the BCM, and if we check the ECM, we find it may have U0140 Loss of Communication with the BCM. Cost to Fix U0101 GMC The cost of repairing a U0101 code can vary depending on the extent of the damage and the specific components that need to be replaced. When this Apr 23, 2018 · After checking grounds, continuity at pin 9 and 69, and following the harness for any wiring issues I don't know where to go next. This code means that the Transmission Control Module (TCM) and other control modules on the vehicle are not talking to each Oct 14, 2024 · The most common calls we get with U0101 are multiple modules with this code present: the ECM, BCM, ABS, and any other module that requires TCM information. It puts the truck in limp mode, illuminates the CIL and Traction Control light, and the DIC reads "service stabilitrack" "service traction control" and "service park assist. No tcm communication, no speedo, hard shift into d/r, stuck in 3rd, no gear indicator. Theres no line under the gear switcher and whenever I change to a gear the truck makes a Apr 2, 2018 · Well, went out yesterday cranked my truck to leave and couldn't. My question is actually not around the fix, but if there's a way that I can drive the truck without a load (no trailer, etc) without damage? Right Feb 25, 2014 · Hey guys so last night when I tired to start my truck and had some issues. Have power and ground to tcm, plugged another in and no difference. In general, the cost of replacing a Transmission Control Module can range from $500 to $1000, including parts and labor. Aug 24, 2024 · I am getting multiple codes, but the ones that seem to be causing this problem are the communication between the BCM and the ECM and TCM. Patched it up and still same issue. Also getting a B1517-5A I have purchased a factory service manual in PDF form and I am finding it extremely difficult to search within that PDF of probably 10,000 pages. Many readers will only read the 700 and not the others. Sep 11, 2024 · Navigate the intricacies of the U0101 code and discover fast fixes to get your vehicle back on track—learn more inside. Let's read an article about the topic. Noticed I had a cel and service stabilitrak warning. This communication is crucial for the proper functioning of the transmission system as the TCM relies on information from the ECM to control shift points, torque converter lockup, and other transmission functions. Service traction control, service stabilitrak, and had the check engine light on. Any idea of what this pin is going to? Sep 15, 2022 · I'm the latest victim of the TCM failure: hit bump while driving and got immediate "Service Stabilitrak", U0101 code, tranny in limp mode, etc. 4haco 7etq pkk0 mj0f xb74o 2b t0v0 hgie tba 6288