This video was so cool. Grounds can do some very strange things, especially computer/module grounds. Anytime I see really strange electrical issues the first thing that I check is grounds. I've learned so much from Paul, he is the best teacher hands down and if you can't learn here you may be a parts changer. 🤣🤣🤣 Honestly all you have to do is listen to Paul and apply yourself, you will learn if you watch this channel.

This channel captured my interest years ago. I used to suck with electric work. I watched every free video 2 times. Then I bought the book. Then I watched every premium channel video a few times. This channel absolutely changed my whole life. I hated hitting the brick wall day in day out but I loved working on cars but electric work was painful.

I have watched every single playlist you have multiple times until it clicked in my medically trained brain and the lightbulb lit and I said "Omg THATS how it works, AMAZING and simple!!" Electronic ignitions make sense now. 🤟♥️

Damn these are one of those badass diags that makes you really appreciate how truly hard the industry should be. A lot of parts changers make it seem like the industry is so easy but then you never really solve the issue as a parts changer

This is one of my new favorites. I've been watching your channel, and have been subscribed to premium for years. The amount of knowledge you've given me, the amount of money you've made me, it's unreal. I recently had a Pathfinder that was jumped backwards. Blew the main fuse and a couple other fuses in the IPDM. Also had a COMM code that would randomly come and go in the BCM, and the security light would stay on during cranking. Measured the network and found an erratic signal. Unplugged the BCM (suspected due to the code and also the immobilizer is run through the BCM) and my signal went normal. Checked powers and grounds, and replaced the BCM and called my programmer to program it. Security light turned off, but vehicle still wouldn't start. Performed fuel pressure measurement and found zero with B+ coming out of the fuse box going to the pump during cranking. This gave me the confidence to sell dropping the tank and performing wiring checks at the pump, which ultimately led to me replacing the pump. Vehicle starts and runs now. Has some other problems we're going to be tackling in the coming weeks as the client gets more money, but the fact that I'm at this point that I never thought I would be at, I'm eternally grateful to SD premium and all that you do.

On most control units where the internal ground is bad, you will measure 12v on the Aluminium housing. If that‘s the case you could just ground the housing and your done (for testing purposes, or for driving it to the scrapyard 😂). Grounding a sensor circuit would fry the small trace to the pin instantely as soon as a shift solenoid gets actuated due to it‘s high current.

This whole industry is very thankful for your teaching Paul! Your videos have been a game changer for me personally and I’m sure they have been the same to many many other techs as well! Your knowledge has helped me understand so much. Just even looking at a car like this can be very stressful and intimidating in itself. But with the fundamentals you teach, it makes everything come together! Keep up the good work my friend!

What happens to CAN signals on the entire network when one module has a bad ground? Can this problem be missed if the network is not measured a certain way?

I really like the way you overlay the readout of the scope while you were talking, as well as, highlighting the schematic so I could quickly see which wires you were referring to. It really helps the flow of the entire video. Great job. Thank you, Paul.

Incredible the ability to imagine so many ways to proceed in a few seconds and the way he doubts certain particularities, such as the relay, is impressive.

I have been watching your videos for the past couple of years and I have learned so much, thank you for your knowledge and time.

Thank you so much for the lessons over the years! You've been a big help. Thank you.

Bless Tremendous video from many angles. Nice to also see you working with your brother. Thanks 😊

I have been watching your videos for the past couple of years and I have learned so much there are no words to thank you enugh

great video Paul and Caleb ...truly enjoy what you do Mr. Danner

Love the video thank you so much for all the lessons that you have given out trying to teach the rest of us

Your videos are timeless Paul Danner for eternity. ❤

You're A True Tech.. your test procedure was fantastic. 👍👍

This was great, I really love the logical thinking in problems like this.

When you walked over and turned the radio off, that is so me. It's why I've always preferred working alone. I've worked in shops where there can be multiple radios going on, it's all a huge distraction. When I started my own shop I didn't, don't allow radios. The claim of needing background noise is a complete lie. If you're paying attention to the radio, you are not paying attention to what you are doing. Nobody can divide their attention and then claim that they are giving complete attention anywhere. It can even be maddening when things aren't going well and you've got some idiot on the radio yapping away or music blasting in your ear.