Don't forget about the Teespring merchandise teespring.com/stores/scannerdanner-2 Proceeds for the month of October will be split between a student scholarship fund at Rosedale Tech and my missionary friend Jon Fowler in Panama (some of you would remember the video I did with him years ago). Thanks so much everyone! You are helping me make a difference.
Thank you guys for helping me to fix my 2006 hummer h3, I had change 2 ignition coil clean the throttle sensor n throttle it self n didn't work. Still was misfiring until I saw your video n change the relay n work fine. Thank you again n God bless you all
you all probably dont care at all but does anyone know of a tool to get back into an instagram account?? I was dumb forgot the login password. I love any assistance you can offer me.
Reminds me of many years ago while I was managing the maintenance of a fleet of 18 wheelers, we had a Kenworth truck with crazy light problems. The mechanics tried everything, well almost everything, even installing a new ECM! Nothing helped. One of the guys was telling me about it over coffee and I decided to take a look. Purely by chance, I took the tail light lens off, pulled out the 1157 bulb, held it up to the light and the brake/turn filament had burned into on the end, dropped down and was contacting and welded itself to the tail/park filament. The turn signal was back feeding to the entire park light circuit. All because of a $1.50 bulb. Some of this stuff can drive you crazy and sometimes you just need a fresh set of eyes to look at a problem.
And also to keep it simple! When I was having taillight issues on my Subaru, the first thing I did was check the bulbs. Burned out, replaced with new ones, problem solved.
I had that exact same problem once on a car. I was going through wiring for hours looking for a dead short ... and it was in the damn bulb the entire time, lol! Live and learn!
Proof positive that had you paid those techs a livable wage, they would have replace that bulb, instead of the computer!! [sarcasm] [shakin ma head] [makin three trips to the fast food drivethru, to get my order correct]
@@roadkill5333 You might have a point there (I still shake my head) if it had occurred in the last 10-12 years but that was over 25 years ago and you took what you could get. My KW dealer at the time could not find qualified technicians at any wage! They had to shut down a whole shift due to technician shortage. We were fortunate to have two local guys who could and, most importantly, would work. I've twisted wrenches all my life and never got rich doing it. Yeah, and your three trips thru the drive through enforces the current state of today's workforce. Jump over to western truck and tractor repair's channel and listen to some of his stories about tractor dealer(stealer)ships! He's also a big ScannerDanner fan.
I'm already a Warren fan, too! About 25 years ago, THE MAN was holding me back, too!! As a matter of fact, I can blame THE MAN for not letting me go to college to learn how to make the same money as rich people. Some silly nonsense about dropping out of high school with a POINT FOUR O grade point average!! I was forced to work for minimum wage, at the skill level that I had, instead of making the same money that wealthy people made!! I once overheard a fast food worker complaint about the horrible working conditions, and the below average pay that she got, while leaning against a counter waiting for my order to be handed to her, so she could hand it to me, without ever looking into the bag, or stop leaning against the counter while she passed the bag with the WRONG ITEMS FOR MY ORDER, out the window!! When I handed it back to her, she had the nerve to ask me what was wrong with the order!! I told her that it was likely all complete and correct!! She asked why I was handing it back. I told her that it wasn't my order. After comparing sacks full of stuff, she handed me my order!! No "I'm sorry", no "have a good evening", it was "here it is"! As I stopped, went thru the bag, and verified the order, she asked if it was all there!! I asked if she was supposed to do that! She asked "do what"? I said verify the order, or let the customer verify whether they got what they already paid for! She just looked at me with a F you look. I wished her good luck on her quest for a raise, and drove off!! When I got home with my cold order, that was undercooked, packed into the bag like concrete blocks not food items, and haphazardly prepared without any sights on quality, I informed corporate to really consider her requests for more money!! I worked at a convenience store, that wouldn't pay much, couldn't keep employees, and when you did something to help ease the cost of losses to the unit, they would hold you accountable! I once caught a shoplifter, that I knew was a shoplifter, I just couldn't prove what he was doing!! I finally caught him, recovered the merchandise, and sent him on his way, WITHOUT CALLING THE COPS!! I was admonished for disrupting business, and falsely accusing a customer of theft, without a police report! (I followed him outside, removed about five items that he hadn't paid for, and used the "you forgot your receipt" for $2 worth of merchandise, to get out there, and NOTICE THE STUFF IN HIS POCKETS!)I also had a gas drive off caught, because several cops were positioned close by, and noticed the commotion, and went and got the guy!! They got their $20 in gas back, I went to court on my own time, and he was not even talked to sternly by the judge, and the mgr refused to ban him from coming back!! We were admonished for having drive offs, and had to attend classes on drive off prevention, theft prevention, and the video tapes were constantly reviewed to see that we were paying attention!! There was no video of customers, in any areas of the store!! I even almost experienced a robbery once, and a restaurant down the street ended up getting it, about 15 mins later. They pulled the tapes to get the descriptions, and pictures, the cameras weren't trained on the customers, only the employees, in non customer areas!! I quit that job, when they wanted to run the store on 24hrs with me and a manager! We lost four employees in a month, and the store refused to back off on the 24hr times!! It was hard enough with three people. But I quit when they wouldn't stop 24hr service with just two of us!! 10hrs a day, for two weeks straight, 7days a week, and they wanted me to run more than 12-13 for God only knows how much longer! 24hrs wasn't worth the time. Barely any sales after BEER THIRTY! On the other hand, I had a lawyer, handling my disability case, call me a year and a half after I employed them, to talk to me for the first time 26 days before my court hearings, to inform me that I had no case because my medical records didn't exist, and I had no proof!! He explained that he was taking a separate course of action (which is exactly what I had been ready for, and had already supplied all of the pertinent information for, which was originally denied) from what I was expecting!! The following week, after I called the dr to get my records, went and picked up the records, took them home and made copies of them, and then took them to the lawyers office, myself, where they promptly refused to accept my medical records because they didn't need them for the case for which they had prepared, which was because they didn't have my medical records to prove my case!! Of course, when it came time to get paid, they wanted all of the premium price for all of the generic work, while they promoted their excellent work records on tv commercials!! I didn't get paid as much, but they got their money, and for almost no work!! My point is you get what they want you to pay for, but what they want to give you in return!! And while giving substandard service, at a premium price, complaining that they don't get enough for what they do! That's true with fry guys, auto techs, store clerk, and attorneys, alike!! And they all claim it's because they don't make enough money afterwards, but offer you the moon beforehand!!
Amazing. First time i encountered case like this on my sister Mercedes. I spend couple hours on that, couldn't wrap my mind around it. One Head Light didn't work and hight beems was dimmed. I found problem accidentally, was bad ground inside the plug. Bad connection on pin. Second time soon after i encountered same case on my neighbor car. lights were dim and i knew exactly what was then. It happened 2 years after i singed up with Paul. So my point is for new guys here. Keep on trying. I often do stuff like this for free especially for friends and family just to get the experience. I also going through Pauls classes again. And its pretty amazing how much more you learn going through classes with few years of experience. It just finalizing everything. And i spend at least 1 hour a day watching other diagnosticians too. So past at least a year i have 100% accuracy in trouble shooting. Thank you so much Paul for this exciting journey.
Paul, a good demonstration of why we cant find Technicians! Its unreal How many guys cant understand the simplicity of this. I wish when I SHOW PEOPLE simply electronics like this the majority wouldnt just stare at me like a dead fish!Keep on Teaching my friend and hopefully you will reach that Audience in the Masses!
have them use PHET DC virtual circuit online its a free website where you build simple circuits like this and test with virtual multi meter and takes just a few seconds to get started.its been the best learning tool for me.
This is one of the best video explaining "back feeding" the circuit and classic "bad ground" problem. Extremely helpful, useful ,video well done and well explained. Many thanks for your time and effort for providing and contributing such community service.
Starting more than 3 decades ago. One thing I learned every time I get into a new project. Clean every single Ground my eyes and hands can find (a diagram helps a lot...). That means that from old crappy VW Beettles older than myself, to way more recent cars and motorbikes. I tend to have extremely reliable vehicles, in what electrical is concerned. Never mind the fact that some had been, literally, saved from the scrap yard! ;-) With that said. Rotary tool, Dremel type, equipped with a decent wire brush. It's an invaluable ally to make short work of corroded contacts/terminals. 30~45 minutes for a car project will return years of extremely reliable work. Yes, it's a good trade, totally worth investment of time. ;-) First class video and show case. ;-)
Great diag. Danner. These young'uns dont realize how valuable your knowledge is. As a retired tech I can speak to a wire repair or terminal tension was always the most difficult repair.
All videos you make matter a lot, doesnt matter if thats not the car you was to supposed to film. All videos and info is much appreciated. Thanks Paul and Caleb
Thanks, Paul. I always appreciate the explanation of the theory, such as you did at the end. One favour, please: whenever you connect a test light, please be sure to emphasise what the alligator clip at other end is connected to ie power or ground. When you don’t emphasise it, I sometimes miss out on the information because I’m trying to work out where it must be connected to in order to react as it does. Many thanks.
Great work on the explanation during the videos hope your son picks up a lot and learn as much as he could from you so your knowledge can pass down from generation to generation
Than you for helping me to fix my hummer h3 I had change 2 ignition coil clean the throttle sensor n throttle it self n still had a misfire , until I change the relay that you said n work just fine. Thank you guys n God bless you all.
Man I just wanna say thank you thank you thank you thank you for your time I know I said thank you a lot but thank you! I currently drive a 21-year-old service van it would not run Well. I recently watched one of your videos about Chevrolet in that particular year needing 50 psi fuel pressure to open the injectors spider injectors that is. did a fuel pressure check after two mechanics told me it was junk. the thing is running like a beast. dude you’re the best thank you keep up the good work! If I was flush with money I’ll be sending some your way right now! But times are tough right now! God bless keep up the good work!
Great video Danner. The other day, I had a a Ford Taurus where when you turned on the headlights, the right one was out, but the washer motor started spraying the windshield. Turns out the guy changed his bulb, but forgot to tighten the ground you had to move out of the way to get to it. Bad grounds can cause some crazy symptoms.
Wow this was so amazing one of your best videos back feeding through the parking light I didn't know it could do that my first thought was it was haunted you need to sell it get rid of it thank you so much for your videos I have learned so much.
I appreciate this my sons truck is acting the same way, this should give me some direction, also never really understood why a different light would come on, now it makes sense.
Great video , and nice meeting you and letting me get a pic with you at SS this past weekend. Brandon and Ziegler's class was great, my head felt like it was going to explode from all the knowledge I got from them both , lol
@@ScannerDanner Sorry I did not have a picture in my profile at the time I commented ! , I was the one in Brandon's class when we were there and said that if Snap-on was to add cursors to their scopes like Pico , it would cost us an extra 5000.00 for it, lol. If that rings a bell in remembrance.
@@ScannerDanner I don't go on Facebook much, but I will send you a request. I have enjoyed watching your vids even though I have been in the field since 1990 because it shows me what I didn't know that I though I knew. Thank you for helping others and seeing u at training proves that teachers need training too to provide to others, God bless brother !
One day when I had a bad bulb in our 2000 suburban I discovered the same side marker light flashes alternating with the signal light. When the signal light flashes "on" the marker is "off", and vice versa. I scratched my head for a while until I discovered that this is a normal pattern with that generation of Chev. Engineers were faced with the challenge of making turn signals more visible from the side, and they solved the problem by creatively running ground between the two so that both would flash in an alternating pattern. I never noticed until the bulb failed and I gave it more attention.
Great video Danner I drive an hour and a half to work and enjoy your videos on my way to work and apply your teaching especially on trailer wiring back feeding grounds are a problem
The Dodge B350 Vans 1987, 88, and 89 were famous for that problem with the rear stop/turn/tail light back feeding into the backup lights. The bulb socket would loosen up losing the ground from the reflector bolted to the body. I wrapped bare wire strands around the stop/tail light socket, soldered and taped it in place adding a terminal to the new ground wire and sandwiching it between the reflector and body ground. Don't laugh, it worked! Thorough diag with your vehicle, Good Explanation also!
Remember me such as issue with my brother's car which is Avante hit a big nail cause coolant tube cutting then the car doesn't crancking and all light doesn't light just the high beam sign in the instrument cluster always on...this all due to Ground point which is contain alot of wires has been cut....
Wow Paul! I'm noticing your videos are getting better and better lately with more real world scenarios. I'm sure you'll have way more material at your brother's shop. Kinda what I go through at a daily basis. At my shop...I deal with many cases with these used car dealerships with similar electrical issues and the majority of times these cars come from accidents with rebuilt titles and from auctions...I always question these customers of what type of accident or damage they come from...75% of the time these problems exist due to accidents that cause wires to stretch or bad body work. It takes a lot of attention to detail when this comes up but yeah at times I do jump wires depending the circuit to save time.
By the way you and Eric O. are starting to inspire me to teach as well...I've been going through so many cases that haven't been seen and I felt bad not to share my experiences. Pretty soon I'll start my channel as well. You've always been an inspiration to me and your knowledge partially made me where I'm at today. I will always be thankful of sharing your knowledge to the world. God bless you and your family!
@@frankiev-tech4630 awesome! I wish you good providence on this path my friend. As for the quality of the videos lately, we cannot discount my son Caleb, he has been a game changer in my opinion. His camera work and editing are second to none. Although we both dropped the ball a little in our camera angles on this video, we both felt like they should have been better, but overall still good.
Great video, great explanation of how the ground can back feed.. I just got your book engine performance diagnostics Sixth edition very very good information thank you Paul
I know this is an old video, but I once helped my dad replace my grandma's headlamp assemblies. They were each wired differently to the bulb sockets and it was causing weird issues with the lights and signals and we had to take them out to compare them to the original.
hello great video but you are saying back feed ground through other brake Lite assembly but my question is why the other brake lite assembly don't share the voltage and are not blinking on those any of any sides . and when parking lite is off the turn signal signals worked you donot think ground going back to parking brake power supply not through other brakes light assembly. .
This bad ground was a common fault in the old days and still today. It was quite common in the seventies at night time when you are following a car and the car driver indicates to turn,you see the rear lights on one side,all start flashing, dim, this is because the indicator feed in that side is trying to ground through the other 3 grounds, which have a high resistance at the point of the ground bolt to body.. As we known electricity, all ways takes it path to ground,the easiest way ,back feeding itself through other equipment .
Had another combo om my son-in-laws Typical circuit like you just showed us, no light in either turn or parking. Turned out that both bulbs were shot and the park light had a missing ground : a frayed cable. A real time waster ! 😋
I don’t have power on coils when key is cranking so I took a ground wire and hooked it to black wire at coil main and it starts but computer still acts like it’s missing . Is this has you would say drop in voltage end steals ground some where or is it a bad computer or a bad ground
Have question regarding voltage drop. scenario 1. Objective=To check the integrity of ground wires from the PCM. -KOEOff ( reading 5 volts on ref) - circuit is on ( supposedly loaded) hook up one lead to BAT (Neg)and the other lead to entry point at PCM connector ( connector is attached to PCM). DMM reads 6.2mV. Would such procedure establish if the circuit is good ( mainly to see if wire going into PCM is connected to ground and in good condition) Can the LoadPro also perform this test, if so what are the conditions and hook up. Someone suggested to disconnect PCM wire, use a test light. One side goes to BAT+ the other touch the ground PCM wire, if light is "bright" circuit OK. I ask that you comment on the merits or lack thereof of each method, if possible Thank you
If the ground that was bad had better contact with the rest of the wires through the eyelet, wouldn’t it have possibly shorted out the other wires because it had power going through it when it’s not supposed too?
Great video! One question: If the current is finding a new path, why the other bolbs are not lighting? The upper corners or the left one (in the paper)
because they are in parallel not series, so the current is being split between at least four other bulbs, maybe 6? not sure the rear light set up. If I would have unplugged the rear lights and one of the two front ones on the right side, I bet I could have made the RF outer parking light blink with the left turn signal as well. I hope this makes sense.
Thanks for yet another great video. You've got the same china torch as me only yours is CE marked. But please tell me where to get one of those piercing tools you used at 20mins?
Hi Bud I’m in need of some knowledge of yours .i have a 1997 dodge Dakota 3.9 gas..about 2 months ago I started to notice it losing power and every now and then a code GEN started showing on the dash.about a month ago it shut off twice on me while coming to a stop.today it won’t stay running when engine warms up after that it shuts off quicker with every start only running for about 1-4 minutes on warm engine in ANY gear at a stop or while accelerating it would just shut off each start gets harder as engine warms.i changed out the tps and the iac and the battery as it then started needing a jump.unclogged the back cat also.please ANY suggestions would be HIGHLY appreciated!
UA-cam advertising FIXD on your video. The way FIXD are advertising themselves and casting such a dim light on us professionals. I won't support anything that supports them. I really admire you Paul and everything you do, I'm gutted your video is being used to support FIXD.
I just blocked it, please refresh this page and tell me if you see it again. Though it may take 24 hours for the block to take place. Freaking rip off b.s. auto tech bashing company can kiss my ass
Even more kudos to you. Last influential UA-cam tech I told about this I don't follow anymore because of those ads. The fact you can and did block them Paul shows your character and dedication to our trade. Massive thumbs up to you dude!
The nice thing about having a paid channel is I am no longer a slave to these advertisements. It is nice to be able to do things my way without outside influence and I am all about helping to make my trade better. If there are ads that conflict with what I believe, for sure they are getting blocked and I don't care if my ad revenue drops. Thanks for the encouragement my friend.
Pay for UA-cam premium and you will see ZERO ads and have ZERO frustration! Best thing I ever did! People waste so much money on shit cable tv and then refuse to pay for ad free UA-cam with things that are actually worth watching!! THEN THEY COMPLAIN ABOUT AD'S 😡😡😡
Question, would just reading the ground side on the device "bulb" with the DVOM, from the very start, show a "non zero" value, in this problem case it should show "approx 12 volts", this will tell you that the ground side of the circuit is bad, ground should be zero volts or very close to it.
Absolutely, as long as the circuit is energized. If the circuit had no current flow, that ground would have shown 0v. A common mistake people make. Another common mistake would have been to measure resistance on that ground circuit with an ohmmeter. It would have passed that test to.
so water got inside the jacket and corroded the wire inside, just behind the eyelet. the way the eyelets are staked/soldered/resistance welded would make the actual connection strong and the wire just behind is always the weak point. that is also where it would stay wet for the longest duration and have plenty of oxygen
![Voltage Drop Testing with a Test Light? [Part 1]](http://i.ytimg.com/vi/kTW68s5vqIg/mqdefault.jpg)
Don't forget about the Teespring merchandise teespring.com/stores/scannerdanner-2
Proceeds for the month of October will be split between a student scholarship fund at Rosedale Tech and my missionary friend Jon Fowler in Panama (some of you would remember the video I did with him years ago). Thanks so much everyone! You are helping me make a difference.
Alesky finis
Keep up the good work and God bless you and your family and thankyou for all your hard work
Thank you guys for helping me to fix my 2006 hummer h3, I had change 2 ignition coil clean the throttle sensor n throttle it self n didn't work. Still was misfiring until I saw your video n change the relay n work fine. Thank you again n God bless you all
you all probably dont care at all but does anyone know of a tool to get back into an instagram account??
I was dumb forgot the login password. I love any assistance you can offer me.
@Shawn Keenan instablaster :)
Reminds me of many years ago while I was managing the maintenance of a fleet of 18 wheelers, we had a Kenworth truck with crazy light problems. The mechanics tried everything, well almost everything, even installing a new ECM! Nothing helped. One of the guys was telling me about it over coffee and I decided to take a look. Purely by chance, I took the tail light lens off, pulled out the 1157 bulb, held it up to the light and the brake/turn filament had burned into on the end, dropped down and was contacting and welded itself to the tail/park filament. The turn signal was back feeding to the entire park light circuit. All because of a $1.50 bulb. Some of this stuff can drive you crazy and sometimes you just need a fresh set of eyes to look at a problem.
And also to keep it simple! When I was having taillight issues on my Subaru, the first thing I did was check the bulbs. Burned out, replaced with new ones, problem solved.
I had that exact same problem once on a car. I was going through wiring for hours looking for a dead short ... and it was in the damn bulb the entire time, lol! Live and learn!
Proof positive that had you paid those techs a livable wage, they would have replace that bulb, instead of the computer!!
[sarcasm] [shakin ma head] [makin three trips to the fast food drivethru, to get my order correct]
@@roadkill5333 You might have a point there (I still shake my head) if it had occurred in the last 10-12 years but that was over 25 years ago and you took what you could get. My KW dealer at the time could not find qualified technicians at any wage! They had to shut down a whole shift due to technician shortage. We were fortunate to have two local guys who could and, most importantly, would work. I've twisted wrenches all my life and never got rich doing it. Yeah, and your three trips thru the drive through enforces the current state of today's workforce. Jump over to western truck and tractor repair's channel and listen to some of his stories about tractor dealer(stealer)ships! He's also a big ScannerDanner fan.
I'm already a Warren fan, too!
About 25 years ago, THE MAN was holding me back, too!! As a matter of fact, I can blame THE MAN for not letting me go to college to learn how to make the same money as rich people. Some silly nonsense about dropping out of high school with a POINT FOUR O grade point average!! I was forced to work for minimum wage, at the skill level that I had, instead of making the same money that wealthy people made!!
I once overheard a fast food worker complaint about the horrible working conditions, and the below average pay that she got, while leaning against a counter waiting for my order to be handed to her, so she could hand it to me, without ever looking into the bag, or stop leaning against the counter while she passed the bag with the WRONG ITEMS FOR MY ORDER, out the window!! When I handed it back to her, she had the nerve to ask me what was wrong with the order!! I told her that it was likely all complete and correct!! She asked why I was handing it back. I told her that it wasn't my order. After comparing sacks full of stuff, she handed me my order!! No "I'm sorry", no "have a good evening", it was "here it is"! As I stopped, went thru the bag, and verified the order, she asked if it was all there!! I asked if she was supposed to do that! She asked "do what"? I said verify the order, or let the customer verify whether they got what they already paid for! She just looked at me with a F you look. I wished her good luck on her quest for a raise, and drove off!! When I got home with my cold order, that was undercooked, packed into the bag like concrete blocks not food items, and haphazardly prepared without any sights on quality, I informed corporate to really consider her requests for more money!!
I worked at a convenience store, that wouldn't pay much, couldn't keep employees, and when you did something to help ease the cost of losses to the unit, they would hold you accountable! I once caught a shoplifter, that I knew was a shoplifter, I just couldn't prove what he was doing!! I finally caught him, recovered the merchandise, and sent him on his way, WITHOUT CALLING THE COPS!! I was admonished for disrupting business, and falsely accusing a customer of theft, without a police report! (I followed him outside, removed about five items that he hadn't paid for, and used the "you forgot your receipt" for $2 worth of merchandise, to get out there, and NOTICE THE STUFF IN HIS POCKETS!)I also had a gas drive off caught, because several cops were positioned close by, and noticed the commotion, and went and got the guy!! They got their $20 in gas back, I went to court on my own time, and he was not even talked to sternly by the judge, and the mgr refused to ban him from coming back!! We were admonished for having drive offs, and had to attend classes on drive off prevention, theft prevention, and the video tapes were constantly reviewed to see that we were paying attention!! There was no video of customers, in any areas of the store!! I even almost experienced a robbery once, and a restaurant down the street ended up getting it, about 15 mins later. They pulled the tapes to get the descriptions, and pictures, the cameras weren't trained on the customers, only the employees, in non customer areas!! I quit that job, when they wanted to run the store on 24hrs with me and a manager! We lost four employees in a month, and the store refused to back off on the 24hr times!! It was hard enough with three people. But I quit when they wouldn't stop 24hr service with just two of us!! 10hrs a day, for two weeks straight, 7days a week, and they wanted me to run more than 12-13 for God only knows how much longer! 24hrs wasn't worth the time. Barely any sales after BEER THIRTY!
On the other hand, I had a lawyer, handling my disability case, call me a year and a half after I employed them, to talk to me for the first time 26 days before my court hearings, to inform me that I had no case because my medical records didn't exist, and I had no proof!! He explained that he was taking a separate course of action (which is exactly what I had been ready for, and had already supplied all of the pertinent information for, which was originally denied) from what I was expecting!! The following week, after I called the dr to get my records, went and picked up the records, took them home and made copies of them, and then took them to the lawyers office, myself, where they promptly refused to accept my medical records because they didn't need them for the case for which they had prepared, which was because they didn't have my medical records to prove my case!! Of course, when it came time to get paid, they wanted all of the premium price for all of the generic work, while they promoted their excellent work records on tv commercials!! I didn't get paid as much, but they got their money, and for almost no work!!
My point is you get what they want you to pay for, but what they want to give you in return!! And while giving substandard service, at a premium price, complaining that they don't get enough for what they do! That's true with fry guys, auto techs, store clerk, and attorneys, alike!! And they all claim it's because they don't make enough money afterwards, but offer you the moon beforehand!!
"I was wrong." Something a good man says. Great quality!
No doubt
Amazing. First time i encountered case like this on my sister Mercedes. I spend couple hours on that, couldn't wrap my mind around it. One Head Light didn't work and hight beems was dimmed. I found problem accidentally, was bad ground inside the plug. Bad connection on pin. Second time soon after i encountered same case on my neighbor car. lights were dim and i knew exactly what was then. It happened 2 years after i singed up with Paul. So my point is for new guys here. Keep on trying. I often do stuff like this for free especially for friends and family just to get the experience. I also going through Pauls classes again. And its pretty amazing how much more you learn going through classes with few years of experience. It just finalizing everything. And i spend at least 1 hour a day watching other diagnosticians too. So past at least a year i have 100% accuracy in trouble shooting. Thank you so much Paul for this exciting journey.
Freaking sweet story man, thank you
Paul, a good demonstration of why we cant find Technicians! Its unreal How many guys cant understand the simplicity of this. I wish when I SHOW PEOPLE simply electronics like this the majority wouldnt just stare at me like a dead fish!Keep on Teaching my friend and hopefully you will reach that Audience in the Masses!
have them use PHET DC virtual circuit online its a free website where you build simple circuits like this and test with virtual multi meter and takes just a few seconds to get started.its been the best learning tool for me.
This is one of the best video explaining "back feeding" the circuit and classic "bad ground" problem.
Extremely helpful, useful ,video well done and well explained.
Many thanks for your time and effort for providing and contributing such community service.
Awesome, thank you!
I stil dont really understand backfeeding but this has been the best description ive heard so far
Its so nice to watch a youtube video from people with brains instead of guys bickering back and forth over some freaking tools....
This turned to be a great accidental refresher video on Voltage Drop testing! Glad you fixed it correctly for everybody's sake.
Starting more than 3 decades ago. One thing I learned every time I get into a new project. Clean every single Ground my eyes and hands can find (a diagram helps a lot...). That means that from old crappy VW Beettles older than myself, to way more recent cars and motorbikes.
I tend to have extremely reliable vehicles, in what electrical is concerned. Never mind the fact that some had been, literally, saved from the scrap yard! ;-)
With that said. Rotary tool, Dremel type, equipped with a decent wire brush. It's an invaluable ally to make short work of corroded contacts/terminals.
30~45 minutes for a car project will return years of extremely reliable work. Yes, it's a good trade, totally worth investment of time. ;-)
First class video and show case. ;-)
Great diag. Danner. These young'uns dont realize how valuable your knowledge is. As a retired tech I can speak to a wire repair or terminal tension was always the most difficult repair.
This. This is why I still subscribe to premium. Worth 10 times the price, but you keep it affordable for folks like me. Thanks man.
You are created to be a great teacher. I Thank God for knowing you
Thank you Abo!
All videos you make matter a lot, doesnt matter if thats not the car you was to supposed to film. All videos and info is much appreciated. Thanks Paul and Caleb
Thank you Noel!
I had no idea i'd have this much fun watching a bad ground on a blinker.
Thanks for the video!
one of the best diagnostic videos I ever watched thank you a lot Paul you are really a masterclass technician.
the reason why I am watching your videos is:
-learning english by myself
-want to change my life and profession
I am honored
Thanks, Paul. I always appreciate the explanation of the theory, such as you did at the end. One favour, please: whenever you connect a test light, please be sure to emphasise what the alligator clip at other end is connected to ie power or ground. When you don’t emphasise it, I sometimes miss out on the information because I’m trying to work out where it must be connected to in order to react as it does. Many thanks.
I second this
Finally, all the haters yelling "bad ground" in the comments are right! LOL
Awesome stuff as always, Paul!
You, sir, are either a genius or a wizard, most likely both. thank you for shining your knowledge on us!
That's an extremely common issue on Chrysler. A bundle of grounds on 1 lug, but eventually they all fail, so best to fix them all at once.
I agree 100%
Great work on the explanation during the videos hope your son picks up a lot and learn as much as he could from you so your knowledge can pass down from generation to generation
ScannerDanner your the best teacher ever I learned a lot of staff from u keep going god bless u
Thank you!
Than you for helping me to fix my hummer h3 I had change 2 ignition coil clean the throttle sensor n throttle it self n still had a misfire , until I change the relay that you said n work just fine. Thank you guys n God bless you all.
Glad it helped
Many thanks!! to you Paul, the lad behind the Camera "Great shots" and family for the video.
Figure it out. Use your head. Be a good technician. Awsome
That was actually fun. I enjoy these videos that include theory because it helps solidify my initial idea of what is wrong.
Thanks for the video. It helps me learn how to troubleshoot a lot better.
Man I just wanna say thank you thank you thank you thank you for your time I know I said thank you a lot but thank you! I currently drive a 21-year-old service van it would not run Well. I recently watched one of your videos about Chevrolet in that particular year needing 50 psi fuel pressure to open the injectors spider injectors that is. did a fuel pressure check after two mechanics told me it was junk. the thing is running like a beast. dude you’re the best thank you keep up the good work! If I was flush with money I’ll be sending some your way right now! But times are tough right now! God bless keep up the good work!
Thank you so much for the comment and I'm glad I could help guide you on fixing your van. Good providence to you my friend
Great video Danner. The other day, I had a a Ford Taurus where when you turned on the headlights, the right one was out, but the washer motor started spraying the windshield. Turns out the guy changed his bulb, but forgot to tighten the ground you had to move out of the way to get to it. Bad grounds can cause some crazy symptoms.
I’ve learned so much from your free stuff. I’ve just signed up to premium. Love your work mate.
Much appreciated!
Wow this was so amazing one of your best videos back feeding through the parking light I didn't know it could do that my first thought was it was haunted you need to sell it get rid of it thank you so much for your videos I have learned so much.
I see Danner has a VW & a BMW in his shop... I love troubleshooting some good ole German engineering. Always boggles my mind
Thanks Paul,I’ve seen this type of thing a number of times over the years 👍
I appreciate this my sons truck is acting the same way, this should give me some direction, also never really understood why a different light would come on, now it makes sense.
yes you did change my life and my confidence i found you a long time ago THANK YOU
Great video , and nice meeting you and letting me get a pic with you at SS this past weekend. Brandon and Ziegler's class was great, my head felt like it was going to explode from all the knowledge I got from them both , lol
Great meeting you too! Now if I had a profile picture I would know who I am talking to :-( sorry man
@@ScannerDanner Sorry I did not have a picture in my profile at the time I commented ! , I was the one in Brandon's class when we were there and said that if Snap-on was to add cursors to their scopes like Pico , it would cost us an extra 5000.00 for it, lol. If that rings a bell in remembrance.
Haha I definitely remember the comment! You on Facebook? If you are make sure you friend request me
@@ScannerDanner I don't go on Facebook much, but I will send you a request. I have enjoyed watching your vids even though I have been in the field since 1990 because it shows me what I didn't know that I though I knew. Thank you for helping others and seeing u at training proves that teachers need training too to provide to others, God bless brother !
@@ScannerDanner Also, when I send the request, it will say Bob instead of Robert on my page.
Even tho you werent planning on this video, it turned out to be very informative. Thanks for making such great videos. Ive learned a lot from you!
If you have two lights out in the front I would check ground first Paul danner is the best I learned so much from him thanks Paul
thank you Chad!
One day when I had a bad bulb in our 2000 suburban I discovered the same side marker light flashes alternating with the signal light. When the signal light flashes "on" the marker is "off", and vice versa. I scratched my head for a while until I discovered that this is a normal pattern with that generation of Chev. Engineers were faced with the challenge of making turn signals more visible from the side, and they solved the problem by creatively running ground between the two so that both would flash in an alternating pattern. I never noticed until the bulb failed and I gave it more attention.
Thank you Danners cubed. Have a blessed and safe week.
Keep up the good work and may God bless you and your family most of all may God bless America 🇺🇸
Absolutely awesome critical thinking and diagnostic skills and ur son did a good job like always.
Great video Danner I drive an hour and a half to work and enjoy your videos on my way to work and apply your teaching especially on trailer wiring back feeding grounds are a problem
Awesome! Thank you!
The Dodge B350 Vans 1987, 88, and 89 were famous for that problem with the rear stop/turn/tail light back feeding into the backup lights.
The bulb socket would loosen up losing the ground from the reflector bolted to the body.
I wrapped bare wire strands around the stop/tail light socket, soldered and taped it in place adding a terminal to the new ground wire and sandwiching it between the reflector and body ground. Don't laugh, it worked!
Thorough diag with your vehicle, Good Explanation also!
Remember me such as issue with my brother's car which is Avante hit a big nail cause coolant tube cutting then the car doesn't crancking and all light doesn't light just the high beam sign in the instrument cluster always on...this all due to Ground point which is contain alot of wires has been cut....
Wow Paul! I'm noticing your videos are getting better and better lately with more real world scenarios. I'm sure you'll have way more material at your brother's shop. Kinda what I go through at a daily basis. At my shop...I deal with many cases with these used car dealerships with similar electrical issues and the majority of times these cars come from accidents with rebuilt titles and from auctions...I always question these customers of what type of accident or damage they come from...75% of the time these problems exist due to accidents that cause wires to stretch or bad body work. It takes a lot of attention to detail when this comes up but yeah at times I do jump wires depending the circuit to save time.
By the way you and Eric O. are starting to inspire me to teach as well...I've been going through so many cases that haven't been seen and I felt bad not to share my experiences. Pretty soon I'll start my channel as well. You've always been an inspiration to me and your knowledge partially made me where I'm at today. I will always be thankful of sharing your knowledge to the world. God bless you and your family!
@@frankiev-tech4630 awesome! I wish you good providence on this path my friend. As for the quality of the videos lately, we cannot discount my son Caleb, he has been a game changer in my opinion. His camera work and editing are second to none. Although we both dropped the ball a little in our camera angles on this video, we both felt like they should have been better, but overall still good.
Great video, great explanation of how the ground can back feed.. I just got your book engine performance diagnostics Sixth edition very very good information thank you Paul
Thank you Vince!
I know this is an old video, but I once helped my dad replace my grandma's headlamp assemblies. They were each wired differently to the bulb sockets and it was causing weird issues with the lights and signals and we had to take them out to compare them to the original.
Good job sir!!! Nice troubleshooting skills.
This guy is just Captain badass all over. Electric cowboy at its best!
just read this to my wife to reminder her who she's married too :-) Thanks man
Your the man
Gotta love the basics. Thanks guys.
hello great video but you are saying back feed ground through other brake Lite assembly but my question is why the other brake lite assembly don't share the voltage and are not blinking on those any of any sides . and when parking lite is off the turn signal signals worked you donot think ground going back to parking brake power supply not through other brakes light assembly.
.
Thanks for all you do im always excited in learning love this channel
The test light seems much more versatile than a DMM. This is a good example of when to use one.
Thank for family Danner, very good class.
Excellent as always Paul , thank you Sir !
Great job well done, it’s classic method but useful. I like it 👍🏻👍🏻
Thanks for explaining with the diagram, SD.
I could have done that part better, but thank you!
This bad ground was a common fault in the old days and still today.
It was quite common in the seventies at night time when you are following a car and the car driver indicates to turn,you see the rear lights on one side,all start flashing, dim, this is because the indicator feed in that side is trying to ground through the other 3 grounds, which have a high resistance at the point of the ground bolt to body..
As we known electricity, all ways takes it path to ground,the easiest way ,back feeding itself through other equipment .
Are they alligator clips threaded at the end
How about your alligator clips that do they screw on to the test light
Always an interesting learning experience. Thank you for sharing.
Had another combo om my son-in-laws
Typical circuit like you just showed us, no light in either turn or parking.
Turned out that both bulbs were shot and the park light had a missing ground : a frayed cable.
A real time waster ! 😋
Great video man. Love your stuff
Can you give the link to your test light?
It's on my Amazon Affiliate page www.amazon.com/shop/scannerdanner
Thank you!
I don’t have power on coils when key is cranking so I took a ground wire and hooked it to black wire at coil main and it starts but computer still acts like it’s missing . Is this has you would say drop in voltage end steals ground some where or is it a bad computer or a bad ground
Have question regarding voltage drop.
scenario 1.
Objective=To check the integrity of ground wires from the PCM.
-KOEOff ( reading 5 volts on ref) - circuit is on ( supposedly loaded)
hook up one lead to BAT (Neg)and the other lead to entry point at PCM connector ( connector is attached to PCM).
DMM reads 6.2mV.
Would such procedure establish if the circuit is good ( mainly to see if wire going into PCM is connected to ground and in good condition)
Can the LoadPro also perform this test, if so what are the conditions and hook up.
Someone suggested to disconnect PCM wire, use a test light. One side goes to BAT+ the other touch the ground PCM wire, if light is "bright" circuit OK.
I ask that you comment on the merits or lack thereof of each method, if possible
Thank you
Where did you get the alligator clips from let me know thanks
If the ground that was bad had better contact with the rest of the wires through the eyelet, wouldn’t it have possibly shorted out the other wires because it had power going through it when it’s not supposed too?
great video guys, very informative.
Thank you for this wonderful vidio,I gat this problem in my car.
Whoever is ' heaviest ' becomes the new ground.
The smaller loads can ground through it, but it can't be grounded by the lighter loads.
Great video, because I have a very hard time trying to comprehend what voltage back feed is.
Appreciate the video guys!
Your videos are epic- thank you!
Great video! One question: If the current is finding a new path, why the other bolbs are not lighting? The upper corners or the left one (in the paper)
because they are in parallel not series, so the current is being split between at least four other bulbs, maybe 6? not sure the rear light set up. If I would have unplugged the rear lights and one of the two front ones on the right side, I bet I could have made the RF outer parking light blink with the left turn signal as well. I hope this makes sense.
Good video. Brothers wear same cargo shorts. It’s the Danner’s uniform. 👍🏽🇺🇸
haha that was unplanned and only noticed in the edits
Very interesting fault finding video.
awesome teacher
Simple issue but you still broke a sweat Paul by that sweaty tshirt at the end. lol Great explanation of the ground circuit issue.
Thanks for yet another great video. You've got the same china torch as me only yours is CE marked. But please tell me where to get one of those piercing tools you used at 20mins?
www.aeswave.com/scannerdanner-c512/
It's called "Phil's electrical probe" 😄
@@ScannerDanner Thanks a million man. Im getting one for sure
Cool video thx mr danner and caleb👍
Hi Bud I’m in need of some knowledge of yours .i have a 1997 dodge Dakota 3.9 gas..about 2 months ago I started to notice it losing power and every now and then a code GEN started showing on the dash.about a month ago it shut off twice on me while coming to a stop.today it won’t stay running when engine warms up after that it shuts off quicker with every start only running for about 1-4 minutes on warm engine in ANY gear at a stop or while accelerating it would just shut off each start gets harder as engine warms.i changed out the tps and the iac and the battery as it then started needing a jump.unclogged the back cat also.please ANY suggestions would be HIGHLY appreciated!
Hi there sir please tell me why is my turning signal staying on constantly but headlight beam working fine
Need voltage readings on those circuit to help. Sounds like a bad ground symptom
Personally I appreciate it and thanks for teaching us greetings and blessings for you and all around always
GREAT INFO THANK YOU GUYS.
Sir, my car i20 turn signal circuit has only 9 to 10 Vol max. Is not it supposed to be 12 voltage??
Why wouldn’t you just bidirectional test inputs and outputs quickly for the circuits in question?
Thanks for share this, you are a good techer.
What type of wire probe are you using for testing?
Probably a Phil's Electrical Probe www.aeswave.com/scannerdanner
You are the Master!
turn cowboy can you tell me what was the name of that fuel pressure test kit that you said was about $30 on Amazon the exact name of it
It's listed on my Amazon page www.amazon.com/shop/scannerdanner
Hey can u send me a link to where u got the tool you are using to poke the wires
Tool links are in the description of all of my videos. Thank you!
UA-cam advertising FIXD on your video. The way FIXD are advertising themselves and casting such a dim light on us professionals. I won't support anything that supports them. I really admire you Paul and everything you do, I'm gutted your video is being used to support FIXD.
I just blocked it, please refresh this page and tell me if you see it again. Though it may take 24 hours for the block to take place. Freaking rip off b.s. auto tech bashing company can kiss my ass
Even more kudos to you. Last influential UA-cam tech I told about this I don't follow anymore because of those ads. The fact you can and did block them Paul shows your character and dedication to our trade. Massive thumbs up to you dude!
The nice thing about having a paid channel is I am no longer a slave to these advertisements. It is nice to be able to do things my way without outside influence and I am all about helping to make my trade better.
If there are ads that conflict with what I believe, for sure they are getting blocked and I don't care if my ad revenue drops. Thanks for the encouragement my friend.
Pay for UA-cam premium and you will see ZERO ads and have ZERO frustration! Best thing I ever did!
People waste so much money on shit cable tv and then refuse to pay for ad free UA-cam with things that are actually worth watching!!
THEN THEY COMPLAIN ABOUT AD'S 😡😡😡
I'm not complaining about ads. Paul understands what I meant and the issue is dealt with. Happy viewing and good choice of channel by the way.
Question, would just reading the ground side on the device "bulb" with the DVOM, from the very start, show a "non zero" value, in this problem case it should show "approx 12 volts", this will tell you that the ground side of the circuit is bad, ground should be zero volts or very close to it.
Absolutely, as long as the circuit is energized. If the circuit had no current flow, that ground would have shown 0v. A common mistake people make. Another common mistake would have been to measure resistance on that ground circuit with an ohmmeter. It would have passed that test to.
@@ScannerDanner Thank you love your videos, great professional job
so water got inside the jacket and corroded the wire inside, just behind the eyelet.
the way the eyelets are staked/soldered/resistance welded would make the actual connection strong and the wire just behind is always the weak point. that is also where it would stay wet for the longest duration and have plenty of oxygen
Where can I find your custom wire piercing probe you are using in this clip? Couldn't find it on your Amazon store!
It's on my other affiliate tool page. Thanks!
www.aeswave.com/scannerdanner
Nice work guys. Thanks!
Good job guys