Скачать с ютуб VW Passat No Start - an SDP Case Study (Part 2) - [Bad Sensor Ground] в хорошем качестве

VW Passat No Start - an SDP Case Study (Part 2) - [Bad Sensor Ground]

This is part 2 of a 3 part case study where I navigate through this unknown problem live with my class at Rosedale Technical College. We will dissect this VW completely, showing the exact cause of the problem. As with other classroom case studies I will be using any and all possible testing procedures to narrow down the problem area. Speed is not as important as learning these methods. But you guys that have been following along already know that. It's why your here! link to part 3    • A Smoked ECM AND a Jumped Timing Belt...   Symptoms - no start - no spark - no communication - no fuel injector pulse 00:00 - beginning of part 2 01:37 - identifying a shielded VRS type crank sensor circuit on a wiring diagram 03:08 - illustrating a dual cam system that uses a single cam sensor 04:19 - identifying a hall effect type cam sensor signal wire on a wiring diagram 05:30 - pierce testing at the PCM 06:05 - cmp and ckp lab-scope set-up 07:20 - waveform analysis of a failed start attempt 20:00 - determining circuit design by unplugging the sensor 23:40 - check your meter- dangers of trying to check voltage with meter leads configured for amps 26:40 - sensor signal terminal spread apart by front-probing 27:30 - bad sensor ground found while checking connector voltage 29:30 - using wiring diagram to identify sensor ground 32:40 - finding low 5 volt ref with 4.2 volts on sensor ground 37:30 - checking sensor ground at computer 43:00 - using a jumper wire to pull a bad sensor ground down to zero 48:50 - using wiring diagram to locate and check computer grounds 52:11 - outtakes ScannerDanner Tools: https://www.scannerdanner.com/tools.html https://www.amazon.com/shop/scannerda... 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-sc... 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.