2012 VW Jetta No Communication with TCM U0101 (part 1)

Vehicle is stuck in park, check engine light is on and there is no communication with the transmission control module. In this video we will be troubleshooting the CAN network using a lab scope. In Part 2 https://youtu.be/GPQ8EKtvM_g we repair this vehicle and are surprised by what we find. Here is the link to Tommy s YouTube channel Positive Lead Diagnostics https://www.youtube.com/channel/UCiFSILHjs5XZecZJDwn7ieA Tools used - AES LineSPI (SMART BOB) https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/AES-LineSPI-SMART-BOB-p8754.html - Test Drive Test Leads for the Snap-on VERUS https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/Test-Drive-Test-Leads-for-the-Snap-on-VERUS-p9036.html - VCDS® with HEX-NET® Pro https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/VCDS-with-HEX-NET-Pro-p9553.html Related videos - Poor running, flashing CEL, no codes (bad computer ground) - Toyota https://youtu.be/44dP6X3QS5A - How to test a computer ground circuit (Audi) https://www.youtube.com/watch?v=fp_XZm-8nrA - ScannerDanner Premium Audi S5 series https://www.youtube.com/watch?v=fhNjX-hHXPM https://www.youtube.com/watch?v=X8yUjpOCAFY https://www.youtube.com/watch?v=iwdlIUW6niM&t=329s For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere! Disclaimer: Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.