U0101 chevy

P0880 and U0101 Thread starter AZlml; Start date Apr 23, 2018; Forums. Duramax 6.6 Technical. Mike L's Trans Talk . AZlml Member. Jun 5, 2016 278 2 18 32 …

U0101 chevy. The U0101 code suggests a loss of communication with the TCM (Transmission Control Module), while the U0422 code indicates an "Invalid Data Received From TCM." Both these codes indicate a communication issue within the vehicle's network. Given the symptoms you've provided — the flickering of the locks, gear indicator shifter light going out ...

U0101 is a generic powertrain code, which means it has the same definition for the Chevy Tahoe as it would any other vehicle. It means that your Tahoe’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. U0101 is often misdiagnosed as a bad ...

Sin esta red, no es posible efectuar el intercambio de información que realizan los módulos, ni tampoco es posible que un scanner obtenga información del vehículo. El código U0101 es común en: Audi, Chevrolet Chevy, Chevrolet Cruze, Chevrolet Impala, Chevrolet Malibu, Chevrolet Silverado, Chrysler, Dodge Caliber, Dodge Charger, Ford, GMC ... Mar 18, 2018 · I am not affiliated in any way with Dan's Diesel Performance. This video is for educational purposes only. Im just a customer who was saved by their product.... Step-1: Examine all fuses and grounds. Examine all of the fuses to ensure that they are functioning correctly and that they are supplying power to the TCM module. If they work, examine all ground connections for the TCM module. Make sure that …Trouble code U0101 = Lost Communication with TCM. At the top of the article, the code U0101 is related to the transmission module. That means when your car can’t control the transmission module and the OBD2 scanner gives the message “U0101”. As a result, this code indicated that the engine and other control modules on your vehicle were ...Chevy Mechanic: Chevy expert. MOST COMMONLY THIS IS A FAULTY TRANS CONTROL MODULE. Tests/Procedures: 1. Verify a good battery voltage supply to the TCM. 2. Verify a good ground to the TCM. 3. If powers and grounds are OK, verify the connection at the TCM.

2016 Impala LS DTC Code U0101. Own a 2016 Impala, 51,000 miles on it. Had to go to emergency room this morning and when I came back out a few hours later to start the car received a Service Power Steering alert on the display, I dismissed it and a StabilTrak may be disabled message, I dismissed that. Noticed that the Park was not illuminated.Ask Your Own Chevy Question. p0700. Chevy Mechanic: Taylor. Ok. That code indicates there is a failure within the transmission. You may need to check your fluid level and condition and have your transmission inspected, especially since you have no reverse gear. May be time for a transmission replacement.U0101 is a generic powertrain code, which means it has the same definition for the Chevy Tahoe as it would any other vehicle. It means that your Tahoe’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. U0101 is often misdiagnosed as …To diagnose the U0101 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Now that you have everything ready, here are the steps to replacing the TCM: Disconnect the negative battery cable. Remove the air cleaner assembly. Disconnect the wiring harness from the TCM. Remove two bolts that hold the TCM in place. Replace with a new module and reattach the wiring harness and bolts.U0101 code no tcm communication. No shift position indicator light. Non working speedometer. Harsh shift from first to second. Answered in 3 hours by: Chevy Mechanic: BOBBYSS. BOBBYSS, Master Technician. Category: Chevy. Satisfied Customers: 17,919.Car shoppers, take note: The Chevy Volt has received a $4,400 price cut amid low sales and a new model. By clicking "TRY IT", I agree to receive newsletters and promotions from Mon... Sin esta red, no es posible efectuar el intercambio de información que realizan los módulos, ni tampoco es posible que un scanner obtenga información del vehículo. El código U0101 es común en: Audi, Chevrolet Chevy, Chevrolet Cruze, Chevrolet Impala, Chevrolet Malibu, Chevrolet Silverado, Chrysler, Dodge Caliber, Dodge Charger, Ford, GMC ...

U0101 is a generic powertrain code, which means it has the same definition for the Chevy Impala as it would any other vehicle. It means that your Impala’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. U0101 is often misdiagnosed as a bad ...Relays are used to control a high-power circuit with a low power signal. The output circuit is switched to the ground to activate the component. The Diagnostic Trouble Code (DTC) will be set when the Control Circuit is open for greater than 1 s. P10E1 Chevrolet Code - Ignition On/Start Circuit Source Bypass Relay Control Circuit.U0101 is a generic powertrain code, which means it has the same definition for the Chevy Corvette as it would any other vehicle. It means that your Corvette’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. U0101 is often misdiagnosed as a ...To diagnose the U0101 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Jan 4, 2024 ... 2012 Chevrolet Traverse Code U0101:00 Lost Communication With Tcm What you need to know. 513 views · 4 months ago ...more. Best Car Fixes. 49.6K.

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Nov 26, 2015 ... ... Chevy dealership as they best they could figure was that it was a bad computer module. I ended up poking around on my own, after looking ...Bulletin No.: 08-07-30-021H Date: Jun-2015 Subject: Loss of ...Truck went in to limp mode and slamming in to reverse. Connected scan tool and found u0101 code. Traced all wiring from tcm through main harness. Determined that wiring was ok. Installed a new tcm and checked continuity. Found all to be in range. Attempted to start with new TCM in order to get to the dealer for programming and the …Jun 1, 2022 ... ... TCM…U0101 code due to prior history repair. DadsGarage Diagnostic Specialist•51K views · 12:13. Go to channel · 2014 Chevrolet Silverado ...Jan 25, 2019 ... U0101 Lost Communication with Transmission Control Module B127E Front Video Display Output Signal 00-no additional information History U0415 ...

I took a rigours steps on diagnosing a tcm that will not communicate with scantool or ecu, shifter Won't get out of park, I have no option that to fix this i...U0101 trouble code. We have a 2009 Acadia since new we now have 125k miles. This evening my wife got in and the stabiltrak note came across and the cel was on. She said it was moving really slow at first then seemed to be ok as she sped up. Then the door lock randomly cycled as well.U0101 is a generic powertrain code, which means it has the same definition for the Chevy Trailblazer as it would any other vehicle. It means that your Trailblazer'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.U0101 code no tcm communication. No shift position indicator light. Non working speedometer. Harsh shift from first to second. Answered in 3 hours by: Chevy Mechanic: BOBBYSS. BOBBYSS, Master Technician. Category: Chevy. Satisfied Customers: 17,919.C0176 C0475 c0544 c0545 C056D C0045 C0050 U0100 U0101 U0140 U0121 U0126 U0131 Version 1 Modified Released May 28, 2020 GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that …DTC's: U0101, U0131, U0146, U160F, U1611, U1610, U1614, U1615, U0132, U1607, And U1608 Models Brand: Model: Model Years: VIN: Engine: Transmissions: from to Cadillac Escalade Models 2022 All All All All Chevrolet Silverado 1500-New (RPO J22, VIN Digit 12 = 5 or greater) 2022 All All All All Chevrolet Suburban 2022 All All All AllSummary. The diagnostic trouble code (DTC) U0402 stands for “Invalid Data Received from TCM.”. The powertrain control module (PCM) will set code U0402 when it receives implausible data from the transmission control module (TCM). Common causes of the U0402 code include inaccurate sensor readings, a dead battery, bad TCM, and …Descripción del código U0101. Es un código de falla genérico que muestra que el Módulo de Transmisión o TCM ha perdido la comunicación con los otros módulos de control del auto. Es común en la mayoría de los modelos y marcas de vehículos. Por lo general, el CAN o Red de Área de Control es el circuito empleado para establecer la ...Service Information 2009 Chevrolet Silverado - 4WD | Sierra, Silverado VIN C/K Service Manual | Document ID: 2743912 #PI0310B: Loss of Communication with Allison TCM, Intermittent Transmission Hesitation, Reduced Torque, Range Inhibit, Clunk, Stuck in Gear or Neutral, Wont Shift, DTC P0880 and/or U0101 Set - (Dec 2, 2011) The U0101 code is typically the same as a U0100 code, but some makes and models will send the U0101 code if there’s a specific problem with the TCM, while the U0100 code may be more general and ... DTC U0101 stands for “Lost Communication with TCM.” DTC U010 is set when the transmission control module is unable to receive or send messages to the controller area network (CAN). A dead battery, faulty TCM, and data bus issues are the most common causes of a logged U0101 trouble code.The 2020 Chevrolet Silverado is a fabulous choice if you’re searching for a reliable full-size pickup truck. Why? Because the Silverado is ranked in third place on the US News site...

U0073, U0077, U0078, U0100, U0101, U0102, U0121, U0126, U0131, U0140, U0155, U0164, U0415, U0422, U0428, U0452, U1509, U150F and/or U15E1 Note: The following causes listed below, may cause the battery to discharge. Cause 1 This condition may be caused by battery cables with high resistance and/or loose connections at the:

188 posts · Joined 2012. #1 · Nov 5, 2013. Hey guys-. So yesterday the Duramax was totally dead. I kept getting code U0105, and the ECU fuse would blow every time I would turn the key. Cranks, no start. I isolated it to the wiring harness, and sure enough there was a spot where a metal bracket had worn through the wiring harness.U0100, U0101, U0102, U0109, U0121 or U0140 Set (Repair Terminals in Transmission ... 2008–2012 Chevrolet Silverado Hybrid, Tahoe Hybrid 2007–2012 GMC Sierra, Yukon Models 2008–2012 GMC Sierra Hybrid, Yukon Hybrid 2008–2009 HUMMER H2 Equipped With Gasoline Engine and 6 Speed Automatic Transmission 6L80 (RPO MYC)Summary. The diagnostic trouble code (DTC) U0402 stands for “Invalid Data Received from TCM.”. The powertrain control module (PCM) will set code U0402 when it receives implausible data from the transmission control module (TCM). Common causes of the U0402 code include inaccurate sensor readings, a dead battery, bad TCM, and …Dec 30, 2020 · Vídeo explicativo sobre el CÓDIGO DE FALLA U0101. Descubre qué significa, por qué ocurre y cómo solucionarlo correctamente.LEER SOLUCIÓN DEL CÓDIGO OBD2 EN... U0101, while it points toward a loss of comm with the TCM, is commonly a main harness connection issue....which does all kinds of things down the line...like TCM, ABS and such. Pull and check the main harness/plugs. Also; Your signature has had adjustments.Mar 2, 2016 ... Go to channel · CODE U0101 2006-2015 Chevy GMC Duramax w/ 6 Speed Allison Trans: TCM Failure Connector Pinout. Mad Mikes Garage•54K views · 3:12.Nov 13, 2022 · 2014 Cruze U0101 Lost Communication with TCM (only on startup) I have a 2014 Chevy Cruze LT RS 1.4L Turbo with ~135k miles on it. Recently I have been getting the following on the info upon initial start; but they clear themselves after a few seconds of the car running (85% of the time) or after I shutdown and restart.

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08 chevy tahoe u0109 u0073 u0101 have all these codes and tested pin 6 and 14 for ohms and am getting 120 i replaced the - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website.U0101 is a generic powertrain code, which means it has the same definition for the Chevy S10 as it would any other vehicle. It means that your S10'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. U0101Locate and short together the wires at pin 29 a Yellow wire and pin 32 a Dark Green wire. Start the engine, recheck for ECM DTCs. If DTC U0101, U0105, and U0106 reset, replace the TCM. Below are the diag steps and connector views to check the power and ground and communication wires.U0101 is a generic powertrain code, which means it has the same definition for the Chevy Captiva as it would any other vehicle. It means that your Captiva’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. U0101 is often misdiagnosed as a ...Apr 30, 2022 ... u0101 is loss of communication with TCM, or transmission control module. the 6 speeds have the transmission control module mounted inside the ...1. not sane; not of sound mind; mentally deranged. 2. of, pertaining to, or characteristic of a person who is mentally deranged: insane actions; an insane asylum. 3. utterly senseless: an insane plan. 4. Swapping a 3.8V6 Supercharged into an 05 Base Impala. Like.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 Chevy HHR). This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has.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 Chevy HHR). This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has.08 chevy tahoe u0109 u0073 u0101 have all these codes and tested pin 6 and 14 for ohms and am getting 120 i replaced the - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website.U0101 is a generic powertrain code, which means it has the same definition for the Chevy Trailblazer as it would any other vehicle. It means that your Trailblazer'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. U0101719 posts · Joined 2006. #2 · Nov 2, 2014. U0101 code is lost comms with the TCM. It sounds like the internal ground in the TCM is gone and causing your issues. My truck did the same exact thing, new TCM and I was good to roll. 2k15i CC/SB GMC . Old: 2k13 CC/SB Chevy. 2k2 CC/SB Chevy.The U0101 is a problem with the communications channel in the truck. Each of the computer modules is connected to the others by a communications bus, a data circuit. The U0101 indicates that the Transmission Control Module can not "talk" to the other modules. Probably should go back and look at the neighbouring connections. ….

I have a 2004 Silverado 2500HD 6.6L Duramax. I also have a bullydog tuner installed. I have not had many issues with the truck at all until the past year or so. My check engine light came on yesterday and I downloaded teh following codes: P0045, P0101, P0401, P0404, P0405, P0670, P0700, P1093, P1094, P1404, P1621, P2227, U0073, …2014 duramax throwing U0101 code. Drove truck 30 minutes with no issues. sat for an hour and while backing out of my parking spot transmission shifted real hard, loss of power, "service stabilitrak" message, no line under gear selector, and CEL came on. code reader displayed "U0101" lost of communication with TCM.Jun 1, 2022 ... ... TCM…U0101 code due to prior history repair. DadsGarage Diagnostic Specialist•51K views · 12:13. Go to channel · 2014 Chevrolet Silverado ...Aug 20, 2023 ... A forum community dedicated to GMC Terrain, Chevy Equinox, and Cadillac SRX owners and enthusiasts. Come join the discussion about ...When it comes to buying a new or used Chevy vehicle, finding a reliable and trustworthy dealership is key. With so many options available, it’s important to know what to look for i...To diagnose the U0101 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. ... U0101 Chevrolet Lost Communication With Transmission Control Module ; U0101 … Las causas comunes incluyen fallas en el cableado o conectores, fallas en el TCM o ECM y fallas en la red CAN. La solución al código de falla U0101 depende de la causa subyacente y puede incluir la reparación o reemplazo del componente defectuoso. Chevy Cobalt perdió comunicación con TCM Fix u0101 2015 Impala U0101 code fix!! at least temporary…. I have a previous thread where I explained my issue with the U0101 code on my 2015 Impala 3.6. CLEAN THE FUSE BOX!!! Get some electric parts cleaner, cotton swab and clean off the pins under the fuse box whenever you pull it out. The first time it worked for about 3 months. U0101 chevy, Jul 12, 2021 · U0101 is a generic powertrain code, which means it has the same definition for the Chevy Malibu as it would any other vehicle. It means that your Malibu’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. U0101 is often misdiagnosed as a bad ... , The U0101 code is a generic diagnostic trouble code (DTC) that applies to all vehicles, regardless of make or model. It indicates that the engine control module …, The automobile fault code U0151 indicates a communication problem in the Controller Area Network (CAN) system of the vehicle. This fault code is commonly associated with the Airbag Electronic Control Unit (ECU) and can be caused by a faulty ECU, open or shorted harness, or poor electrical connection. The symptoms of this fault code may include ..., The U0101 code is a generic diagnostic trouble code (DTC) that applies to all vehicles, regardless of make or model. It indicates that the engine control module …, U0073 Definition: Control Module Communication Bus”A” Off. U0073 is a fairly common trouble code. It is generic, so it has the same meaning for your Chevy Malibu as it would any other. This code appears when something has interrupted the communication between two of your Malibu’s control modules. The most common causes of U0073 are …, Chevrolet Cruze: This popular compact car has been known to have issues with its electronic throttle body and wiring harness, which can trigger the U0101 code. Dodge RAM: The Ram is a reliable pickup truck, but certain models have reported problems with the internal communication system, leading to the U0101 code., Mar 30, 2023 ... Share your videos with friends, family, and the world., 2008 2500HD Sierra 4x4 6l90 WT (Very few modules, manual windows) Driving along, the trans goes in to limp mode. Throws a P0700, P2544, U0073, U0101. Try clearing the codes, they come back. Unhook battery, clear codes they come back. Limp truck back home, gauges start acting up, door locks freak out. I changed out the battery with a new one and ..., U0073, U0077, U0078, U0100, U0101, U0102, U0121, U0126, U0131, U0140, U0155, U0164, U0415, U0422, U0428, U0452, U1509, U150F and/or U15E1 Note: The following causes listed below, may cause the battery to discharge. Cause 1 This condition may be caused by battery cables with high resistance and/or loose connections at the: , In the case of DTC U0101, a vehicle PCM has determined that the TCM is effectively “offline”. Related: Code U0100, Code U1000, Codes $7E8 and $7E9. Symptoms of Code U0101. Diagnostic fault code U0101 is often accompanied by a host of secondary symptoms, some of which tend to be noticeably more severe in nature than others., Inspect the starter solenoid B+ battery cable for possible contact at the starter heat shield (1) or a loose shield resting on terminal. ⇒ If the battery cable is shorting out on the …, Where is the U0402 sensor located? The image above shows the location (arrowed) of the transmission control module on a Toyota Camry. Note that while the TCM is often located directly on or near the transmission, on many applications it can also be located in the engine compartment, behind the splash cover inside a front wheel well, …, 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 Chevy HHR). This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has., 2015 Chevy Impala codes p16D0, u0101,po304. Has a new intake solenoid valve in it but code keeps coming back and po304 just came up for the first time. Sometimes when I place the car in drive and the …, Have you ever wondered what those mysterious "U0101" codes on your Chevy's diagnostic scanner mean? Well, fear not! In this article, we will unravel the secrets behind the U0101 code and help you understand the intricacies of your vehicle's electronic control system. So, buckle up and get ready to delve into the captivating world of automotive diagnostics!, Feb 25, 2014 · 205 posts · Joined 2012. #4 · Feb 25, 2014. Ive had the tuning for maybe about a month. Today when I started the truck, all the service traction control and other things were gone, the check engine light was still on, throwing a U0101 code and now also a P0880 code. There is now a line under the gear selector and I am also able to drive it now. , Feb 5, 2022 ... Go to channel · CODE U0101 2006-2015 Chevy GMC Duramax w/ 6 Speed Allison Trans: TCM Failure Connector Pinout. Mad Mikes Garage•54K views · 5:25., U0101 code no tcm communication. No shift position indicator light. Non working speedometer. Harsh shift from first to second. Answered in 3 hours by: Chevy Mechanic: BOBBYSS. BOBBYSS, Master Technician. Category: Chevy. Satisfied Customers: 17,919., U0101 is a generic powertrain code, which means it has the same definition for the Chevy Trailblazer as it would any other vehicle. It means that your Trailblazer'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., Relays are used to control a high-power circuit with a low power signal. The output circuit is switched to the ground to activate the component. The Diagnostic Trouble Code (DTC) will be set when the Control Circuit is open for greater than 1 s. P10E1 Chevrolet Code - Ignition On/Start Circuit Source Bypass Relay Control Circuit., U0101 is a Chevrolet code that indicates lost communication with the transmission control module (TCM). It can be caused by a faulty TCM, a damaged TCM …, U0101 is a generic powertrain code, which means it has the same definition for the Chevy Trailblazer as it would any other vehicle. It means that your Trailblazer'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., I have a 2004 Silverado 2500HD 6.6L Duramax. I also have a bullydog tuner installed. I have not had many issues with the truck at all until the past year or so. My check engine light came on yesterday and I downloaded teh following codes: P0045, P0101, P0401, P0404, P0405, P0670, P0700, P1093, P1094, P1404, P1621, P2227, U0073, …, U0101 is a generic powertrain code, which means it has the same definition for the Chevy Captiva as it would any other vehicle. It means that your Captiva’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. U0101 is often misdiagnosed as a ..., American-made Chevrolet is one of the best-selling brands in the United States. If you are in the market for a used Chevy, whether a sedan, truck, SUV or sports car, this article h..., U0101 code!! I have a 2007 cobalt with a 2.2l. The car drove fine one day and the next day it’s throwing the U0101 code. Power steering light flashing, traction control light is on, car will not shift, and the speedo does not work. J have recently replaced the Tcm with a new one and had it programmed to the vehicle but still did not resolved ..., U0101 is a generic powertrain code, which means it has the same definition for the Chevy Traverse as it would any other vehicle. It means that your Traverse’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. U0101 is often misdiagnosed as a ..., U0101 code means that the TCM, or transmission control module, is unable to communicate with other control modules on the vehicle. It can cause problems with the transmission, such as shifting issues or check engine light. Learn the symptoms, causes, seriousness, and how to diagnose and repair this code from KBB., Vídeo explicativo sobre el CÓDIGO DE FALLA U0101. Descubre qué significa, por qué ocurre y cómo solucionarlo correctamente.LEER SOLUCIÓN DEL CÓDIGO OBD2 EN..., Vídeo explicativo sobre el CÓDIGO DE FALLA U0101. Descubre qué significa, por qué ocurre y cómo solucionarlo correctamente.LEER SOLUCIÓN DEL CÓDIGO OBD2 EN..., 10 posts · Joined 2014. #1 · Dec 2, 2015. I got a U101 code with Loss of communication with TCM on my daughters 2005 Cobalt LS. Gauges going crazy etc., which seem to be common symptoms. So far I have pulled ECM/TCM fuse above BCM and in engine bay fuse panel and cleaned, they didn't look bad. Pulled C1/C2 and the red plug …, Hi everybody, and welcome to my "stevenofpa" YouTube Channel!This video shows you what it's like to see the broken wire that was causing a trouble code U0101..., U0101 is a generic powertrain code, which means it has the same definition for the Chevy Suburban as it would any other vehicle. It means that your Suburban’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. U0101 is often misdiagnosed as …