Circuit Identification and Integrity Testing Livestream Class (previously recorded)

Livestream Class For Christian Brothers Automotive from 9-22-20
This was the first live stream class that I have done. We had a few hundred #ChristianBrothersAutomotive techs from across the US, participate in this private event, where they were able to ask questions via text. We recorded the class and are providing it for you guys here.
This full class is available on SD Premium as a 3 part series.
www.scannerdanner.com/scanner...
ScannerDanner Tools:
www.scannerdanner.com/tools.html
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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 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.

[@mike-yp1uk]

I have become solid in diagnostic work due to the premium channel. I now stay as member because I must continue to sharpen my skills regularly. This program will change your life due to the skill level you obtain. my peers now consider me as one of the best in town. I'm not bragging I'm simply saying it is a small investment considering my worth as a technician today. The cost of this channel in my honest opinion too cheap for a wealth of knowledge. You will never be able to learn all it offers but I promise it will change your life in many ways. The l1 patch I wear is a direct result of this channel.

[@bobflannagan7262]

Bless you, Paul. I've been watching you grow over the years. Thanks for all you do for your craft.

[@salvadorgutierrezr5914]

That was a good class teaching and also thanks for the prayers Scanner Danner , God bless you and your family🙏🙏🙏🙏🙏👍👍👍👍👍👍👍👍👍👍👍👍✌👋

[@dannywilsher4165]

Scanner Danner, your manhood meter just pegged when you prayed before your presentation. Thanks for that prayer and I enjoyed your live stream class for my birthday!!! God blesses those who acknowledge him!!!!!!!

[@ScannerDanner]

So everyone who acknowledges me before men, I also will acknowledge before my Father who is in heaven Matthew 10:32 Thank you brother

[@dannywilsher4165]

@@ScannerDanner Yes Sir, thank you also my brother!!!!

[@mechanicmatt871]

I don't think I could have done my job if it wasn't for you and the way you explain your testing methods. Thanks so much, you have been really helpful.

[@sundayhonour5915]

Meeting you is a huge blessing as technician God bless you richly sir

[@noelcastillo2883]

Mr; SD, I like what you teach; but I really like that you are putting God in your life also. God bless you in everything you do Sr.

[@TonyRule]

I'm a confirmed atheist in that I do not believe in an all-seeing, all-knowing deity but the older I get and the more I see the more apparent it becomes that there's something in the human psyche the needs the focus that religion provides which humans need for our continued survival as a social species, on the whole. A few short years ago I would have scoffed at this prayer but given the vacuum left by people abandoning organised religion in droves in the west and seeing the resulting mess that's made of morals and community values and cohesion in favour of self-interest and consumerism, I now applaud it.

[@ScannerDanner]

This comment just made me tear up as I've literally been sitting here second guessing myself. Thank you for what I view as confirmation from above that it was okay by Him.

[@TonyRule]

@@ScannerDanner Are you saying He is now working through me?

[@ScannerDanner]

@@TonyRule yes i am my friend

[@terryharvey4811]

@@ScannerDanner NEVER DOUBT YOURSELF. DO WHAT YOU THINK IS RIGHT. AND WHETHER I AGREE OR NOT DOES NOT MATTER. I TRY TO GO THROUGH LIFE AND DO NO HARM. IF WE ALL DID THIS OUR WORLD WOULD BE A BETTER PLACE.

[@hughvanzyl549]

Absolutely awesome Paul. Thanks for a brilliant session. South Africa

[@andrewgracey3903]

Love the videos man all the way over in Ireland. Been a auto tech for 10 years and im learning from you.. great work keep it up man

[@bbmd2200]

I love the ohmmeter because of the lower voltage. I would use my body as a resistor because it would be a cool to do, but as you said, higher voltage will be induced into the signal wire. To me,using the ohmmeter is the safest out of all of them.

[@kalindambozi2356]

Killing bugs after a prayer. Your lesson is good

[@ThunderbirdRocket]

Very clear coaching on this topic . Your methods will keep us on track and are huge time and money savers !! Thanks !!

[@freeus-now.2322]

If you read this You are My Teacher and now My Preacher. Lol..Love your work.BROTHER. Stay safe with you awesome family. That you give us people a glimpse into your live . You are Very Much appreciated.

[@kirkabrahamson1148]

Wow, I once thought this man wouldnt hurt a fly. Lol. Outstanding presentation once again Mr Danner

[@jaycelis7853]

One of the best Automotive KZbinr. Very thankful to have someone like you who shares knowledge, experience, and tips for all aspiring tech / mech all around the globe. God bless and see you online when possible sir Paul 💪

[@johnnymalicoat754]

Thanks for all the awesome content you put out.

[@fredflintstone8048]

Another great lesson, thanks for sharing, Paul.

[@danielmusat597]

A very good and informative video, as always. Man, I appreciate you very much for your effort of teaching others all this stuff from your experience and knowledge. You are great!

[@chohwoefebomo3133]

I love the fact that u prayed in this video. God bless you!

[@sebczajna700]

Today I am celebrating my 40th birthday, one of the gifts is the confirmation of the order for your book. My dream has come true. greetings from Poland - fan of diagnostics and heavy faults in cars.

[@ScannerDanner]

Happy birthday! Glad you are here with me my new friend!

[@fieldfamily824]

Love it Scanner! Thanks that verse and prayer was encouraging!

[@marksprague4454]

Awesome! This is great stuff. I highly recommend scannerdanner premium. I recommend your channel to all the techs just starting out. Way better than the West Coast trade school or community college. I thank you very much. God bless you Paul!

[@8953147]

Love the fly killer!! I purchased your book along with watching your many videos which do compliment each other, and found that combination perfect for learning. Reading and seeing it demonstrated has been the key!! The prayer was awesome, thanks Paul!

[@ScannerDanner]

Thank you my friend!

[@jroman23]

Impressive! This will help me a lot with my diagnosis in the Shop I work for. Thanks. You’re good and keep going 👍🏻. God bless you

[@isalmankhan1]

Thanks for sharing SD👍 Loved the prayer intro, really heart touching❤🙏, I was eagerly waiting for this lecture😉 Stay Blessed & Safe❤

[@docoski5518]

Awesome start, and great vid!

[@nancylewis7142]

Thanks for this video SD.

[@naushadali95]

You are a great teacher.thanks for every thing,

[@Pablo_Automotive]

Thanks for anoter premium class this weekend I really apreciat this, Caleleb is very clever he alwais has good questions.

[@d.d4184]

6 years watching now. A game changer and a money maker for me 5 days a week.

[@Hurlburton]

Amen brother Loved the proverb Thanks for the download

[@PhillyDee215]

Any electrical or diag skills I have....I've learned it from Scanner Danner💯🔥

[@PhillyDee215]

Facts💯

[@neverstoplearning382]

same here

[@asewamu]

For real! I get a lot of compliments about my process of diagnosing and I always tell them I learned it all from ScannerDanner!

[@PhillyDee215]

@@asewamu 😉😉😉

[@franciscobadillo9451]

Thanks so much for all your Time exponsed to us you are a huge man

[@ScannerDanner]

My pleasure!

[@user-io3hw7hx7q]

Awesome outstanding job have a great time thanks

[@nigelstringfellow5187]

Hello again Paul it's good to welcome you back I hope you and your family are well thank you for the prayer and the video and as I always say thank you for everything you do you are making America better cheers from Australia

[@ScannerDanner]

Thank you kindly my friend

[@curtisroberts9137]

Used this today on a Ford EGR ESM. Scan tool was 5v and using diode mode and ohm mode, verified the computer showed proper voltage. Was awesome to see this working.

[@crystal1484]

Keep up the good work love your channel👍

[@proudofthe3211]

Bless you brother for starting off with a 🙏. When I got away from God for sometime, I thought I didn't need Him, boy was I wrong. I had a lot of trouble understanding everything OBD2. When I returned back to the Lord, everything I had read and every video you made connected, allowing me to understand everything I had read and watched. A lot of people don't know that when you walk away from God, He lifts the Wisdom from you until you return back to Him. When you do, you experience a breakthrough! God Bless!🚘🙏

[@rmb779]

Thank you for this Informative video ,Sir

[@jesusisthelord6593]

That is why you are a good men ,because You a son of God....God bless You always Jeep doing the good job..

[@joshandalyssa]

Paul, you can explain the two circuits as "Logic", versus "Power". Logic circuits are very high resistance meaning direct shorts do very little if any damage due to the minute amount of current flow. A power circuit has higher amp flow which results in blown circuits when shorted or grounded. Logic circuits are for referencing changes for the control modules. Power circuits are for motor movement for what ever purpose as an EGR pintle movement. They require amps. Reference circuits do not require amps.

[@AutoTechAndy]

Brought me back to fast and furious jesse" thank you lord for turbos ,nos .... love your videos

[@ogboost7610]

Great info. This is the type of stuff i try to explain to my coworker delivery drivers at UPS about a what a technical job is as compared to obeying corporate rules on how to deliver a package. I still fix cars in my spare time

[@IAMNOSLEEP]

Thanks for sharing... Cheers.

[@anthonynicholls8010]

Very good class

[@jeffreywilsonrubikscubeonb2428]

Been following and watching for years...we have talked before actually and I have even chatted with your Brother in the past. You have impacted this trade in a positive way more than anybody else I can think of, and your diagnostic "philosophy" has reached so far and wide that it is impossible to measure. My reputation as a good diag tech that led me to a Career with Snapon as a Diagnostic rep I owe to you. I have been able to travel internationally teaching and lecturing other techs...always recommending your channel and book at the end. Dont be dismayed at a bit of hate you might receive because of your public display of your faith.. it was a promise in Scripture that it would happen in John 15 vs 18 to 21 "18 If the world hate you, ye know that it hated me before it hated you. 19 If ye were of the world, the world would love his own: but because ye are not of the world, but I have chosen you out of the world, therefore the world hateth you. 20 Remember the word that I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my saying, they will keep yours also. 21 But all these things will they do unto you for my name's sake, because they know not him that sent me." I am a Christian and i learn things everyday from unbelievers...we all do. And most unbelievers could care less about your faith, if they like you and what you can teach them. even if 99 percent of your followers are unbelievers only a small percent will be so upset at your public display of religion they would dump you. It would only hurt themselves in the long run. But even if you lost 100 percent of your followers...still wouldn't matter. Your treasure is in heaven. Keep doing what you do...and God Bless you Brother!

[@sergioc2342]

Liked the verse and prayer .. great video.

[@georgebonney90]

I appreciate the prayer and the lesson thank u mr danner

[@ozzstars_cars]

Nice job swatting flies 😁 and explaining the 5 volt ref circuit.

[@digidiagz8355]

Amen brother, mad respect for not being ashamed of Christ 🙏

[@otisplunk2599]

Blessed is he who sits on a tack, for he shall rise again.

[@robbocop33r12]

You'd be a hoot at tennis tournaments with that thing! ;-)New balls please,new balls please.......Another great video Paul!

[@mariomario3113]

The best of the best 🥇🥇🥇🥇🥇👍👍👍👍👍

[@vickenkaragozian2041]

God bless..Thats what we need. God first ..

[@danielmusat597]

Another comment on the integrity of the wires towards a computer: inside any ECU there are inverse polarity diodes for transient voltage protection. On every input and output including power lines. In order to check the integrity of a wire one can measure the voltage drop between the wire and ground of the car using the diode tester on the DMM. Negative on the wire, positive on the ground. Current will flow through the protection diode biasing it forward and opening it. The voltage drop would be around 0.5V. Hope this will help anyone sometime.

[@mr.technician4144]

Thats the very important....prayer before anything else....thanks be to god

[@spelunkerd]

What a great idea, to use the multimeter diode output as a testing voltage generator.

[@robertmedina6875]

Another great video Paul and Caleb Danner! I always enjoy your videos here and on www.scannerdanner.com God bless your family!

[@vin605]

Teach as always i appreciate this vid thanks for sharing this with us so much to learn in this video, you have been telling us about this technique for years, this one really stands out. Your basically teaching us how to diagnose the circuit the way the computer does it, and how the computer figure what fault code to send."This information here will not be written on a flowchart" but you are able to put us in the mind of the engineers and how they design the computer to function. Also thanks for the tip flies have very low integrity just use a zap lol.

[@boybravo689]

Thumbs up done sir

[@arctican7483]

GOLD!

[@mike-yp1uk]

this is a rewind and grab more knowledge. I'm not afraid to rewind and burn these facts in to the old hard drive. definitely a watch more than once video.

[@mr.technician4144]

Your a very good man sir Paul...why? Because you share your knowledge to everyone,,thank you so much sir for being a good teacher,instructor....god bless you always...many knowledgeable out there,not sharing co'z they thinking if they were share to others how can they earn money???,,they wanted customers always go with them and not to others, because only them have the knowledge to fix for something....and also some didn't teach much, they are afraid of being surpass from others after they teach....let may say just like this (there is an competition,e.i...for incentives,more customers,etc....) but you....sir is different...you share all,,thank you so much sir I really learned more everytime I watched your videos,,god bless...may god be always gave you more good health in order to teach more,and to your family...👍👍👍👍👍

[@SpaceCadet4Jesus]

Prayer on a KZbin video, its a first. Good job.

[@ecaparts]

Thanks

[@spelunkerd]

At 43:00 I paused the video to try and think through why the higher impedance test light would not show a full 5V coming through the signal wire. Evidently the internal volt meter inside the PCM does not have 10M ohms resistance, so current spills through to ground more easily than a typical multimeter. Then it boils down to a simple voltage divider question. If the test light has, say, 800 ohms resistance, and the internal voltmeter has 1000 ohms resistance, then the drop across the test light would be 2.2 volts (5*800/1800), leaving 2.8 volts for the PCM to see through the internal voltmeter. So, there's a 3 bears sweet spot for sensor test lights! You want enough resistance that is doesn't fry downstream parts, but not so much resistance that the downstream devices can't see the full swing of what they are following. The practical upshot is not to expect to see a full swing of voltage there.

[@pigeonsil240sx]

doing the conversion that otc test light has around a 1.8 watt bulb, so seems as long as people use around the 2 watt range and under they should be safe.i wrote this because after testing my test lights the harbor freight test light draws around 280ma at 12v where otc puts out around 145ma at 12v so a big difference between the two

[@user-su3dw5cq9f]

Oh thank you I learned from you the diagnosis through Long term and short term Now I know why my car got into trouble. No one knew the cause of the problem. Sensor Mass Air Flow But the problem was from the fuel pressure regulator stuck. Examined by injector oscilloscope It was intact for the duration of the opening of the fuel injector, as well as the shutdown. Long term - 17 and short term - 10

[@ScannerDanner]

good job my friend

[@user-su3dw5cq9f]

@@ScannerDanner I have an idea. A moment when you test the fuel. Some of them use gas sprays. When the car no start To see if it's fuel or not. My idea. Use Purge control solenoid valve (PCSV) Separate the connected hoses and connect them directly to the fuel fumes passing. opinions that this is an easier way there is no need to use spray or other What do you think of this idea?

[@aayesher9400]

No flies were harmed in the making of this video...

[@prmayner]

Praise the Lord, Amen Brother.

[@Ghost-Actual]

Thats crazy that the Christian Brothers Automotive shops are based in my hometown of Grand Rapids Michigan!

[@gregoryfairchild2460]

Amen Paul

[@JamesValentineBaja1000]

Wow, prayer! 🇺🇸

[@franklaprocina8974]

Awesome video as usual, nice touch with the prayer, hate to say this but I found it a little rushed and a little confusing, sorry to say because your videos are the best, stay safe

[@ScannerDanner]

Thanks for the feedback. This was a little rushed as I had a 75 minute window. Had another guy say it was too slow and repetitive 🤔 But thanks for the comment. The beauty of a recording is you can pause and rewind right?

[@Bushougoma]

42:44 Ohms Law doesn't apply to LEDs they have what's called a non linear current characteristic. For example with an incandescent test light a small increase in voltage will mean a proportional small increase in current and the light will glow brighter. This follows Ohms law (voltage is proportional to current) with an LED however a small increase in voltage will cause a huge increase in current. The increase in current is unpredictable and will vary from manufacturer to manufacturer and even from LED to LED.

[@dveloso150]

Hello, I watched the whole video and found it very informative. I was really glad that you had actually selected a TPS sensor for your illustration because it is the sensor that has given me a reading which has not been able to be diagnosed by ANYONE. Tried to sorted it out myself, took to a couple of mechanics and posted some questions on different sites. NEVER GOT A SATISFACTORY EXPLANATION to some even closely related. I will give you the details and would ask that you address this condition in a video , and hopefully it can help others in a similar situation. On the video you show the alternatives, expected results and basically a NARROW range of values which, once interpreted, discards other options and points to a choice with a reasonable degree of certainty, and as you well pointed out 100% certainty in life is not the norm, however it is achievable after "enough" testing and analysis is performed. My problem is that I have the engine off, key on, obviously RPM is zero and the air being pulled into engine is also ZERO. TPS connector is pulled off and my code reader shows MAF at around 135g/s ( idle is about 5.5g/s ) crazy but understandable , THE CRAZY PART IS TPS % keeps on increasing by itself, without any action being performed, It has gone as high as about 43%. How can the % climbing be explained? All the examples you give the reading is for all intent and purposes "static" and I keep getting this raising value. In my head it goes something like the current is running through some limiter ( resistor) and as the current passes the resistance drops and the Volts increase ( as read by the reader). turn off the ignition and after while the whole process repeats itself. Does it make any sense at all, if so where is this component that has resistance dependent on temperature? could it be that some short exists between the MAF heating element ( keeps getting hotter and resistance drops and voltage goes up) Or what is the cause in case my reasoning is wrong. Please let me know if you have something in your channel that addresses this, and I can go subscribe to it. Thank you

[@ScannerDanner]

What are you driving? I've seen this before. GM? Not worried about the key on engine off MAF values. Those are not valid until you have an RPM signal. The TPS % rise is a problem. (The MAF is steady right?)

[@dveloso150]

@@ScannerDanner Thank you so much for your reply. I didn't bother to look back sooner because most people are "too important" to reply or they are afraid of admitting that they don't know. I didn't want to overwhelm you with information. I really appreciating you giving it a try. The climbing value has me completely lost and additionally this has been an intermittent problem. Here is the information 2002 Buick Century about 150K miles. IN REPLY TO YOUR QUESTION. Answer: MAF reading remains constant. TPS % creeps up. THINGS I HAVE DONE I have replaced the fuel pressure regulator ( the regulator was actually leaking) I replaced the IAC . The one in the car was showing excess carbon on the tip) A lot of hope went into this decision, the original probably could have been cleaned and would be alright., NO CHANGE The PCV valve, the tube and the rubber "U"that runs to the EVAP sensor. The "U" tube was collapsing . "U" tube now is Ok. ( I thought that some air leakage could be occurring. APPARENTLY NOT Throttle body and IAC seat were cleaned . Problem persists MAF sensor was cleaned. N/C Air duct was checked for leaks None that I have been able to see or hear, N/C Brake booster vacuum hose, Pulled and plugged, NO effect on high RPM. N/C Physically checked and throttle linkage seems to be shut. I have opened the throttle for a moment and see on an Autel READER thatTPS % go up, bring throttle back down reading goes as low as about 3% and then reading starts to go up. It looks like an auction, TPS% VALUES bounce back and forth within a very narrow range, but steadily climbs, It takes a few minutes to reach to a high TPS % RPM's If starts normally shortly after It first goes to 1300-1400 range then 1500-1700-1800 then 2000 the 2300-2400. Once I had as high a 3400RPM. Turned off the car for a while, started again, started normal but soon TPS % was acting again. Brought home and been trying to figure this thing out now for about 30 days. The only thing I have been able to have some faith in is that - air is going through the engine- BUT how is that air is coming in remains the mystery. I had an event that I drove for 40 minutes and EVERYTHING WAS "NORMAL" I actually owned and drove the car for about one week, the rest has been trying to figure out what causes this. Initially the car ran without problems. Then I slowly started to notice that deceleration wasn't as fast ( I came to know that the engine was revving up) To come to a stop, shift to neutral and sometimes turn off the car because the RPM's are so high that people are looking at me. To start moving, the "BANG" when I shift into Drive. I'm sure the transmission will be next to go. I really appreciate if you can give me some tips on what to look for- I don't have a scanner at this moment, but bought a TECH2 clone on ebay, out of desperation, to see if I can read the IAC valve and see if it tells me something. I went to the PCM and noticed that someone had either worked on it or tried to. The plastic cover on the top connector has some broken tabs, apparently the one who did, wasn't aware that the tabs have to be "squeezed" to be separated from the aluminum part of the connector. Thank you very for your assistance on this problem.

[@ScannerDanner]

@@dveloso150 you have a bad engine computer. Like I've said, I've seen this. In fact, I even talked about my case study (just like yours) with my class at Rosedale Technical College (where I teach). If your TPS voltage is steady when measured at the sensor and at the computer pin, and you are seeing a TPS voltage or % rise on the scan tool, you have a bad ECM. The TPS rise is causing the computer to open the IAC valve which is why you have a very high idle at times.

[@dveloso150]

@@ScannerDanner I have a lot of respect for you. You took the time to reply and " CLEARLY" stated your position and the reasoning behind. Nowadays this is getting very hard to find. No one has the " balls" to stand by their convictions. There is always a " weasel" clause. I can take your statement and " as a big boy" decide entirely on my own whether or not to follow it. The other position is, that quite a few are nothing more than self proclaimed experts, that when the going gets though they ' find an excuse to save face". Life offers no guarantees , it is a risky business. I will do my best ( don't really know how good that is, but that's what I got), when I received my clone scanner, try to make some sense of what I am reading , and go from there. I know for sure that if I do nothing, I will get nothing. Let's play ball!!!! I will inform you of the end results and hopefully you can incorporate this event into something that may help others in a similar situation. THANK YOU

[@ScannerDanner]

@@dveloso150 Thanks man, and without seeing the car in person, I can't be 100%. But what I can tell you with 100% certainty. The TPS% on your scan tool is matching your intermittent high idle speed complaint. Here is why: Within the programming of an engine computer is an IAC increase or opening, every time there is a TPS voltage rise (opening). This is there to prevent decel stalling issues. When your foot is on the gas pedal, the computer opens the IAC to prepare beforehand, for the moment you let off the throttle. Then is will slowly close the IAC to bring the throttle back to normal idle. You can see this effect on every car. Just sitting is park, if you snap the throttle, you will notice the RPM rise rapidly, then on the deceleration event, you will notice the RPM sort of hangs for a bit before coming back down. This IS the IAC effect on this system and is for decel stall prevention. A sudden accel followed by you slamming on your brakes so you don't hit something, is a period where we would get a stall if this wasn't in place. I hope I am making sense. Now, back to the 100% part. I am 100% sure that your TPS % should NOT be rising without you touching the throttle. Your high idle that corresponds to this TPS% rise on your scan tool tells us that this is absolutely legit data (not a scan tool issue). So your final steps to confirm this issue is to monitor the TPS voltage signal directly to make sure that the voltage is in fact NOT changing. If it is changing, then we move away from the computer. If it is NOT changing, while you are seeing a TPS% rise on the scan tool then we move toward the computer as the fault. Like I said too, I have seen this EXACT problem on this EXACT model car :-) Customer had a 3000 RPM idle speed complaint and it was super dangerous! I could see the TPS voltage rise on the scan tool and a corresponding IAC opening is reaction to it, confirming the high idle was being commanded by the computer, because it thought my foot was on the throttle. When I checked the TPS voltage directly, it stayed at about .6 of a volt the entire time! IT never moved. And I even checked it right at the computer pin and it was steady there too. So a new ECM was the fix. (really weird issue) Last comment, you mentioned some weird MAF data. We don't really care about this for this issue BUT it could certainly be a part of the computer failure too. Just an fyi

[@siphiwowowo4940]

Hi I alway watch your videos I was a Landover tech and at some point I didn't like to be a technician but watching your videos it brings back the spark and light i am writing in request if you have a book 📙 that you wrote i want to buy it i am leaving in South Africa 🌍.

[@proudofthe3211]

Amen 🙏

[@kdmq]

There was one edge case where Ivan was working with a door module due to window problems, and his use of an incandescent test light actually fried a reference circuit in the module (I forget what the video was, I'm sure someone will remember). I forget what he did to fix the problem but he got the window working without having to buy a new module.

[@Goldwing1500rider]

That’s funny!! Knowing lot of mechanics curse, throws fit... YOU? Huh!! Praise the lord!! Prayers before doing anything with wisdom!!! Awesome!!

[@mikerodriguez238]

For Paul. I was watching your video on wiring integrity. Someone was being sarcastic. The closest to 5k ohms resistor made is 4.7 k ohms. You can use two 10 k ohms in parallel.

[@ScannerDanner]

or just use your DMM or test light instead as explained further in the video, thanks! The resistor actual number was not very important, it was just being used as a buffer in case the signal wire was shorted to ground or you accidentally jumped the wrong pins

[@ivandrago2557]

Ivan from Pine hollow diagnostic burnt think module for power windows with incandescent test light. Altough I watch all your videos on free youtube channel and you always did it with incandescent test light. If I remember on one Ford you use led test light for cranck sensor testing. I have your book and helped me a lot, as yours explanation, thanks a lot.

[@ScannerDanner]

You have a link for that video? I'd like to see it. Thanks!

[@ivandrago2557]

@@ScannerDanner kzbin.info/www/bejne/hHnTqGSGobiGbZY this first of four part videos. Pine Hollow Auto Diagnostics -Subaru Power Window Saga. I think that Steve from Simply Diagnostics thought in his video that initial amp current causes it. For me also make sense, altough want to hear Your opinion.

[@ivandrago2557]

@@ScannerDanner I think that in second part module is burned

[@ScannerDanner]

@@ivandrago2557 I tried to find it but it is too confusing on what exactly he is doing and why and when he caused the issue. Sorry, but I don't have time to watch this 4 part series to see exactly what happened. I will say this, those signals he mentioned as "communication" looked like hall effect signals to me (motor movement monitoring) This would explain why when stationary, sometimes the signals were the same and sometimes opposite. This just simply was a window or trigger wheel within the hall effect signals sitting in different stationary positions. What he did with that orange wire with his test light, he never showed that I could see.

[@ivandrago2557]

@@ScannerDanner Thank you, I will watch again when I catch time so see what happened. I forgot it like you said it is four videos. I remember that he said that was first time damage module with test light.

[@m.a.4795]

You could use the ohmmeter to identify the ground wire by measuring continuity between a known good ground and the wires.

[@ScannerDanner]

I believe I did show that as well, thanks!

[@raymundsantos2324]

Hi sir, can you connect the test light to the signal wire and body ground for circuit integrity check? Same thing, can you connect the test light to the ground wire and battery positive? It won't fry the computer?

[@nickayivor8432]

Caleb thank you for the great Questions 👍 ACCOMPLISHED SIR SCANNERDANNER My Mentor Sir ScannerDanner From Nick Ayivor from London England UK 🇬🇧 ⏰️ 22:16pm Good Evening

[@zeuslightning04rodriguez32]

I just want to get something clear. Using diode scale is more safe then using a test light?

[@johnbonifas6040]

Great job Paul I don't know who the idiots are with thumbs down God bless

[@johnmars974]

another good video ,very informative as usual. have you checked out diag/dan resant video on why you should use incadescent testlight.

[@ScannerDanner]

No, I have not and if he is saying the same thing, that's great! Too many techs trust an LED test light when troubleshooting and they absolutely should not!

[@johnmars974]

@@ScannerDanner yeah, the video is program cheap key fob,

[@n8kru19]

First off, thank you scanner Danner for sharing your in depth knowledge and being so passionate. I have 2 questions: with a sensor whose portion of the 5v ref circuit Having a bias resistor, why wouldn't you see the bias when back probed at the signal wire? Is it because it has ground when plugged in? Second, when is the bias voltage applied from PCM through the signal wire? When you first turn keyon before start and then in engine run the 5v coming from the 5v ref wire is then applied into the signal wire? If you understand what I'm asking. I understand for the most part how it works just not clear I. That part. Your feed back is much appreciated. Thank you.

[@ScannerDanner]

Thanks! 1. You will see it, but only when the sensor is unplugged or when there is an open signal wire 2. That bias is there all the time! The second the ECM wakes up

[@n8kru19]

@@ScannerDanner ok and as soon as you apply the throttle and the signal needle moves off idle position, then the Pcm Starts to receive signal voltage coming from the sensor? (What's left of the incoming 5 volt ref based on position of the sensor)

[@jasautomotriz469]

Los videos en Youtobe Premium tienen traducción en subtitulos? Sólo hablo español y cuando veo un video en KZbin coloco los subtitulos en español y ya pero en Premium no me funciona.

[@ScannerDanner]

Not sure what you're saying, sorry. This app doesn't support a translate option.

[@velcrobungee]

Subscribed :) Fantastic video. But. "With Respect To" what? My three favorite words when describing a test to someone. If someone wants you to grab a voltage from a test point they better tell you where to put your ground lead :) (assuming you are being taught)

[@nabilbezih4370]

Hi Paul, you are the best teacher I learnt a lot from you, I want to buy your book, how do I order it please. Thank you

[@ScannerDanner]

you can find it on my website at www.scannerdanner.com Thank you!

[@bartscave]

You really need to jump the output wires from that fly swatter into your sensor wires.

[@dogsplantscarsneatstuff176]

Paul when did you start calling James by his Danner moniker? It makes me laugh when you do that. What does he call you? Do you call him Danner around your mom? By the way bring back the kids. I loved May's reaction when you found the problem: it was the fascination some of us forgot we had. Always enjoy Caleb doing things also. When you have the kids on it reminds me of the great relationship I had with my dad on the farm. Have a good day. Hi Mrs. Danner if you are watching.

[@ScannerDanner]

When we were kids, we had 4 Jim's in our friend group and so they all got last names only. Even mom started calling him Danner and still does to this day. My kids sometimes even call him Uncle Danner 😂 Thanks for the comment my friend. It is good to be able to do this with my family now. I am extremely blessed, as you were growing up with your dad on the farm.

[@dogsplantscarsneatstuff176]

@@ScannerDanner What a neat story! I never guessed how James got the last name only for having a million Jim's around, that your mom calls him Danner, and that your kids call him Uncle Danner. That's so cool ! Makes my day! As always thanks for the systematic diagnosis.

[@ScannerDanner]

@@dogsplantscarsneatstuff176 absolutely! Thanks for watching

[@nathanburke1993]

Great video. Now my incandescent test light draws 296ma nominal from battery voltage. In your opinion still safe to use?

[@ScannerDanner]

It would depend on what you are using it for, but I would like to see something with half of that amperage for the testing I described in this video

[@nathanburke1993]

@@ScannerDanner any ideas how I could limit the current on my light in your infinite wisdom

[@alwayslearning6355]

I wonder if adding a 10000 ohm resistor in series with the signal wire would decrease the voltage and amperage outputs. That would be even safer.

[@martyb4815]

Great job Prayer 1st is an Awesome way to start any day. Great teaching, a little redundant, I would like to go a little faster not to lose interest. Lol

[@fredshead7114]

Why would any one dislike this....

[@tomtke7351]

I get from you what I find NOWHERE ELSE. Thx SD. Do you prepare lesson plans with specific student learning objectives? I.E. ESWBAT? (Each Student Will Be Able To?)

[@ScannerDanner]

I never much liked those. Sounds like a NATEF task list. "Student will be able to read and record trouble codes" for example. A 7 year old can do that right? I'm sure you're referring to something more than that but I've always expected my students to practice their fundamentals and when they're not sure what to do next, to go park there asses in front of a computer screen and start researching description, operation and testing. Then do the tests, then come ask me. The ones that could do that always succeed. We ran a live shop at the school btw

[@tomtke7351]

@@ScannerDanner You are obviously a WEALTH OF KNOWLEDGE... and I'm learning basics that are complicated and not found elsewhere. But you frequently seem to have to correct yourself. This is very hard on my lame brain. Full lesson plans would kinda help prevent this.

[@ScannerDanner]

@tomtke7351 I was rushed on this one. It was a livestream class I did for Christian brothers automotive that had time constraints. I have this class recorded in a 5 part series on my website and it's way better. Here is a section of part 5 that I posted here on YT kzbin.info/www/bejne/jmPGe5dshLmYftk

[@tomtke7351]

@@ScannerDanner sorry for my comments... they were wrong. Keep up the great videos!

[@ScannerDanner]

@tomtke7351 no, I don't think they were at all! I really appreciated the honest feedback and I really hated this format of this class. Wanted to get your feedback on the other one I posted. Thanks!