Headlights Flickering while Engine is Running, It's A COME BACK, I almost Got My Butt Kicked!!!

[@petermartinez5573]

I remember this vehicle, it was diagnosed as a bad alternator. No technician likes a come back. But your persistence and knowledge finally got to the root of the problem. I hope the customer was understanding. There is no such thing as a perfect world.

[@KITS_Auto_and_Truck_Repair]

Peter Martinez Thank you!!! The Customer was very understanding, she actually watches my videos too, she knows how difficult it was to figure this out, she is one of my viewers...

[@charlesbrown-hh5zr]

That's a for alarm system hooked up for a censor so basically if someone tap the car or most of the technical sensors might be up too high and I look button on the side of it you can like twist it for sensitivity to higher a load like the one that gives busted of so many shops what they do is They hook their sensor up to the lights of the vehicle so somebody opened up the door something like that that light up pop on and let them know that the alarm would go off and let them know aid that this carbon tap away or sometimes it doesn't cause if you hit them the headlights have come on with the alarm system but it used to be the running lights so they might have hooked up the wrong lights to it instead of the running lights they use the headlights so some people won't they headlights is the flicker when they alarm going off so that's what that is if that's a remote starter whatever it might be Babe

[@sandyhagans556]

@@charlesbrown-hh5zr Exactly how mines flickering ... Like when the alarm is going off. Driving one night and a car pulled right out in front of me. I was fishtailing to keep from hitting this person. I was thinking NOW I KNOW THEY SAW ME!! As I proceeded up the road I was flashed by an oncoming car, and that's when I first noticed I had no headlights (@ all), and still DoN't!! My mechanic is backup since December, the other one says he's tied up until February! Now look at me on KZbin trying to get information on How to fix flickering/no headlights.

[@Taldish]

You may not realize it, Deo but you just taught a very valuable lesson in doing due diligence and perseverance. And something else that DIYers always need to learn, which is Stay Calm. You were frustrated but it didn't show. You just kept going. You are a great example of a top notch mechanic. Thank you so much.

[@KITS_Auto_and_Truck_Repair]

@Taldish My Pleasure! Thanks

[@justinjdavis79]

Wow nice job for staying with it!! You are a Excellent Mechanic!!

[@KITS_Auto_and_Truck_Repair]

@justinjdavis79 Thank you!

[@danniebosley1521]

You are efficient and thorough! I was able to clearly understand and follow through with you to the end. I have a 09 Avalanche that’s doing the same thing. I’ve replaced the battery,alternator and cleaned all ground wires in the engine compartment. I was at a loss for where to go next. I’m going to try checking wires because the alarm and door locks don’t work right. Thank you so much.

[@KITS_Auto_and_Truck_Repair]

Dannie Bosley My Pleasure! Thanks

[@lesliegovender3890]

Thank you this is so detailed. You perform a detailed check. Makes all the difference. Great stuff

[@KITS_Auto_and_Truck_Repair]

@lesliegovender3890 My Pleasure! Thanks

[@lesliegovender3890]

@@KITS_Auto_and_Truck_Repair I want to share this with you. I had a problem where the parklights were intermediately switching on while driving my Sandero Stepway 900T 2017 model. It turned out to be brake light bulbs that I recently fitted were of poor quality. The bulbs were turning black yet continued to work. I fitted better quality bulbs. So far the issue has stopped. The dash is not flickering. Especially when I press the brake pedal. I'm sure this will help too

[@officialsifisom]

You are a star, had a similar problem with my Golf MK4, disconnected my alarm system everything is ok now.

[@KITS_Auto_and_Truck_Repair]

Sifiso M Thank you! I'm glad to hear that the video was helpful!!

[@tomvanalst8533]

Thank you for the in depth troubleshooting, I will use this procedure to troubleshoot my problem with a 99 Ford Ranger flickering headlamps and dash lights.

[@KITS_Auto_and_Truck_Repair]

@tomvanalst8533 My Pleasure!

[@eben4star]

I have the exact same problem, surprisingly I think its the connection to my door too. It's a Toyota Yaris hatchback. I almost ruled it out as a bad alternator, although I eventually had to change my battery (it was already bad). The flickering stopped a while ago when I kinda slammed the driver door (not intentional though 😅. I'll keep observing to trace the exact location of the faulty device. Thanks bro.. you're a life saver! Cheers from Ghana 🇬🇭

[@KITS_Auto_and_Truck_Repair]

Eben Amoako My Pleasure! Thanks for letting me know where you are watching from!!

[@CADDY2714]

A very good video. you explained it clear and perfect the color coded map etc... 100% I can learn from you 🙂 keep up the great work . I'm from Brooklyn New York

[@KITS_Auto_and_Truck_Repair]

floyd mackie Thank you! I'm glad to hear that the video was helpful!

[@mohammadal-gebaly3046]

Greetings . It is hard job but due to your patience you caught the line . Thanks a lot .

[@KITS_Auto_and_Truck_Repair]

Mohammad Al-Gebaly My Pleasure!

[@CADDY2714]

You make learning wiring easy to understand

[@KITS_Auto_and_Truck_Repair]

floyd mackie Thank you!

[@CADDY2714]

You are a very GREAT teacher keep up the great work

[@KITS_Auto_and_Truck_Repair]

floyd mackie Thank you!

[@bartscave]

What a frustrating diagnosis for you! Great job.

[@KITS_Auto_and_Truck_Repair]

Bart Young Thank you!!

[@tomvanalst8533]

I had a similar problem with slight flicker, remote key frequently not working even after replacing the key battery, key fob and car battery dying after the vehicle sat unused for weeks. Turned out to be a defective GPS tracker installed by the dealer because they wanted to track the vehicle if payments were not made. Finally paid off the vehicle and sold it because it was a terrible car due to A/C Auto climate control, power steering and CVT issues, 2013 Nissan Altima......

[@KITS_Auto_and_Truck_Repair]

@tomvanalst8533 oh cool!

[@StrayDogTheExposer]

Excellent detailed video. Thank you.

[@KITS_Auto_and_Truck_Repair]

Stray Dog The Exposer My Pleasure!!

[@IbuBanda-b8x]

Thanks brother nice job nice teaching l enjoy your explanation l have same promblem on Volvo xc v 70

[@KITS_Auto_and_Truck_Repair]

@user-qb2zd6rm8r My Pleasure!

[@rudy6458]

Great scientific diagnosis

[@KITS_Auto_and_Truck_Repair]

@rudy6458 Thanks!

[@andrewhernandez1080]

Much props my man we need more mechanics like you myself have had to many or them try and rip me of but lucky I makit a point to research b4 taking it in and love catching them steadily lieing there asses of.!!

[@KITS_Auto_and_Truck_Repair]

Andrew Hernandez Thanks!

[@LonelyHeartsChannel]

I am no electrician and I have this problem and I want to change the module myself but you don't show how. It's easy for you but not for the rest of us. I watched your 30min+ of agony but you leave me hanging in the end when you got your victory.

[@KITS_Auto_and_Truck_Repair]

Michael Angelo this module is easy to replace, it has a couple of tabs that you have to undo then it's gonna come right up!

[@LonelyHeartsChannel]

@@KITS_Auto_and_Truck_Repair Can you do a quick video? (or share a link). It will help hundreds of us all over the world. Its scary when we don't know what we're doing. Cheers!

[@KITS_Auto_and_Truck_Repair]

@@LonelyHeartsChannel next time another one comes around I will do it!

[@darell9751]

Thanks again for this video. Could you add a video and link on how you used your test bulb, for the newbs like me?

[@MySkullzDented]

Great video. Good job😊👌

[@KITS_Auto_and_Truck_Repair]

@MySkullzDented Thank you!

[@sulemanhabib6349]

Great job that we fund the problem,by boss KD, Habib Auto from Ghana Accra west Africa

[@KITS_Auto_and_Truck_Repair]

Suleman Habib thank you bro, I'm so glad to hear that you're watching these videos all the way from Ghana... I appreciate it!!!

[@bikerleo1966]

What was connected to the interface module? there could be a number of functions connected to that module Tachometer, door locks and locking systems a car alarm were any of these attached and causing a fault and then you might think it is just the module but what if it was a door lock?

[@KITS_Auto_and_Truck_Repair]

Spaceman Leo Thanks for your input!! a defective tracker was the problem in this car! I recommend you watch both parts of this video because this was an intresting one!

[@sparkyobrian6417]

love your videos, great content

[@KITS_Auto_and_Truck_Repair]

sparky obrian Thank you!!!

[@Usmanthemecano]

That was a tricky one! Bon boulot frérot !

[@KITS_Auto_and_Truck_Repair]

Usman The Mechanic thanks bro. Yeah this one was tricky for sure...

[@ramonbarrios5186]

you are a very good technician and explain everything very well, but I would still like to know why those wires were with aftermarket connections.

[@KITS_Auto_and_Truck_Repair]

@ramonbarrios5186 Thanks! did you watch part 2 of this video!

[@adamissah452]

Very easy to understand 🙏

[@KITS_Auto_and_Truck_Repair]

@adamissah452 Thanks!

[@wackyJobs]

I appreciate the knowledge keep going

[@KITS_Auto_and_Truck_Repair]

@user-ws1kx5pb2m Thank you!

[@dianadiem6950]

Awesome info 🎉🎉🎉🎉❤

[@KITS_Auto_and_Truck_Repair]

@dianadiem6950 Thank you!

[@Bartony08]

I have 2002 GMC savana. My headlight is flickering with the engine running. What should I do first?

[@KITS_Auto_and_Truck_Repair]

@Bartony08 Check your ground connections!

[@davidmoore344]

Good video. I was most interested in your concluding statement. Why and what to do or not to do. You said the faulty part was after market ? Was it still needed? Also the cheap wire connectors what connectors would you recommend?

[@KITS_Auto_and_Truck_Repair]

@davidmoore344 Thanks! No tthat device was not needed, it was a tracker for the car!

[@FSria]

I have exactly same issue in an Acura RSX Base model, what is the name of the detective part you changed??

[@KITS_Auto_and_Truck_Repair]

@FSria did you watch part 2 of this video

[@rpo69z28]

the bad SL2 can module looks like it is a bypass for the alarm remote control to control door locks, arm, disarm, possibly remote start functions.

[@KITS_Auto_and_Truck_Repair]

KEVIN MESSICK Yes!

[@jluisbravo5868]

Thank you for great video !

[@KITS_Auto_and_Truck_Repair]

@jluisbravo5868 My Pleasure!

[@engineeringeye4902]

very helpful video 👍 now I am able to recover my system！ may know how I can access that wiring diagram？

[@KITS_Auto_and_Truck_Repair]

@engineeringeye4902 you can get the wiring diagram from mitchell prodemand!

[@AsifAli-tv5bq]

I have the same problem but only front headlights are blinking I changed my alternator bcm junction block but the fault is still there I have noticed one thing when I remove battery terminal then it start blinking even more but right terminal it seem fine at the idol speed and at the low beam but when I turn it on high beam and accelerate the engine then it starts blinking the headlights can u please tell what could be the fault I am worried and can't figure out the problem my car is KIA Sorento 2.4 L please guide me sir thanks I can't find it's CAN Sl

[@KITS_Auto_and_Truck_Repair]

Asif Ali is there any aftermarket device installed in the car? like a tracker? look for that!

[@kennethmckee7796]

I have a 2009 Nissan cube it shakes as soon as I reach 65 mph but stops as soon as I reach 80mph . I changed rotors, axles, wheel hubs , engine mount transmission mount . Still does it . I'm thinking it's a sensor issue because it always stops right at 80 mph and there's always a slight wiggle in the steering wheel when it hits 80 and drives normal. What do you think it could be ?

[@KITS_Auto_and_Truck_Repair]

Kenneth mckee are your tires well balanced?

[@kennethmckee7796]

@@KITS_Auto_and_Truck_Repair had them rebalanced

[@KITS_Auto_and_Truck_Repair]

@@kennethmckee7796 That's odd, did you install OEM axles on it? I've seen aftermarket axles cause this problem!

[@papimasfuerte4671]

Your wheels are crumbled.

[@tomvanalst8533]

Thanks!

[@KITS_Auto_and_Truck_Repair]

@tomvanalst8533 My Pleasure! Thanks for donating to the channel!

[@sandrosuazo2583]

My 2012 Lincoln MKz has a problem with dash lights and headlights start flickering with all the lights telling me I need a service. I already replaced my battery and alternator but the problem is still There

[@KITS_Auto_and_Truck_Repair]

@sandrosuazo2583 it Could be anything, I recommend you have it diagnosed by a pro mechanic to figure out exactly what is going on!

[@XqeDiosxqe]

Was that an aftermarket alarm system that was at some point disconnected but became active for some unknown reason got plugged in and since there is no horn or siren present kept flickering until turned off by the remote control.....

[@KITS_Auto_and_Truck_Repair]

Nef it was the tracker!!

[@jimwebster3377]

Great result.. Did you refit the original alternator and get a credit on the new one?

[@KITS_Auto_and_Truck_Repair]

Jim Webster Yes! I did

[@revrvini]

❤ awesum findings

[@KITS_Auto_and_Truck_Repair]

Ranginui Vini Thanks!

[@shondelthomas5799]

I have a nissan serena hybrid 2013 anytime I put on the headlights the van lose power but once I Take off the headlights it works normal.

[@KITS_Auto_and_Truck_Repair]

Shondel Thomas that's odd! you might have a shorted ballast!

[@Hobbyscrapperaustralia]

Hi KIT'S.great video mate.Just a question.Is it possible that a faulty alternator can blow halogen headlight bulbs?

[@KITS_Auto_and_Truck_Repair]

@paulscanlon5021 it's possible! check for AC voltage at the Alternator!

[@Hobbyscrapperaustralia]

@@KITS_Auto_and_Truck_Repair checked my low beam lights at the headlight terminals and 12v present.Globes were blown.Recently had faulty alternator replaced.Now thinking possible over voltage under voltage fluctuation was the cause.I am a fully qualified electrician and auto electrics has always fascinated me👍

[@KITS_Auto_and_Truck_Repair]

@@Hobbyscrapperaustralia Oh Cool!!

[@adamissah452]

Woww very nice 👍

[@KITS_Auto_and_Truck_Repair]

@adamissah452 Thank you!

[@adamissah452]

I'm auto electrician and I'm learning more from you keep up the good work bro

[@hardytch8264]

After when I watched this car first video , the day after car was cut out after few minutes then I checked battery (it’s only one month old) it’s was only about 6v then jumped start it then checked again while the car running it was 13.2v then checked alternator out put was 13.3 within few minutes goes down to 10.9v then I knew my alternator is bad with focus on yr video ( I plug the car on trusted obd reader no code ) anyway I ordered new alternator I fitted in the car the alternator put out 14.2 v happy day, after few hours same thing came back then checked alternator same story like old one , I was thinking same as you defective alternator but while I was there thought let me check throttle body it was a mist oil on it gave a gd clean flow by clean air mass flow sensor and jumpstart the car it was solid 14.2 v then one thing came to my mind let put the old alternator back guess what it was put out 14.2v since old alternator works spot on .

[@KITS_Auto_and_Truck_Repair]

Hardytch 82 that's a crazy!!! thank you for sharing that with us, I appreciate you

[@est.94denver41]

So how did u fix it ??

[@luross2057]

Hi. Why didn't the issue show up before you released the car the first time?

[@KITS_Auto_and_Truck_Repair]

lu ross I don't know why it worked the first time!!

[@sauldean6430]

I just bought a buick park avenue that was wreck, I'm having a problem with the dash light and the headlights, it randomly turns on and off, any idea what could this be and what to check, mines does not fliker, it turns off, or sometines comes on

[@KITS_Auto_and_Truck_Repair]

@sauldean6430 since the car was in a wreck the problem could be a wiring issue or a module problem, I recommend you have it diagnosed by a pro mechanic

[@sauldean6430]

@@KITS_Auto_and_Truck_Repair Thank you sir.

[@sandyhagans556]

This may have helped me. Except, I have a dang Buick Enclave ... Problem after Problem with this car! 😭

[@KITS_Auto_and_Truck_Repair]

Sandy Hagans Lol! I hope you get all your issues fixed!

[@retrodealer6495]

Man now I know what not to check. & get to the point ty later.

[@KITS_Auto_and_Truck_Repair]

Retro Dealer 64# sounds good!! I'm glad to hear that the video will be helpful!!

[@jeffreyherbert91]

Well done for sticking with it...i did watch the first video....did you check for a/c ripple or did you just go with the alternator as the fault stopped when it was unplugged?

[@KITS_Auto_and_Truck_Repair]

jeffrey herbert I checked for AC ripple the first time I did the job, not the second time, I checked for voltage drops, everything checked out fine then I got a different brand Alternator... Which didn't fix lol!!! I just went with the fact that the problem stopped when I unplugged the Alternator

[@darell9751]

I wish I had access to a mechanic like yourself. Not just your expertise but you also took the time to find the issue. Mechanics here charge tons for half the diagnosis then replace expensive parts with no guarantee.

[@bentrider]

You said the module was aftermarket. What was the purpose of the faulty module?

[@KITS_Auto_and_Truck_Repair]

sam1953 it was a tracker that car dealerships use to locate vehicles!!

[@bentrider]

@@KITS_Auto_and_Truck_Repair interesting. Thank you

[@KITS_Auto_and_Truck_Repair]

@@bentrider My Pleasure!!

[@bentrider]

@@KITS_Auto_and_Truck_Repair I am also having the same flickering of lights on my 05 PT Cruiser. It is intermittent. If they start to flicker and I turn the engine off, the flickering usually stops when I restart the engine. I am suspecting the ignition switch because sometimes the engine won't start at all but eventually does start after a couple tries.

[@KITS_Auto_and_Truck_Repair]

@@bentrider look for a tracker on the vehicle!!

[@tirneresen6973]

Good job :)

[@KITS_Auto_and_Truck_Repair]

Tirne Resen Thank you!!!

[@omarowilliams5291]

Well the good things about it, u didn't buy that $900 part,is it for the security system 🤔

[@KITS_Auto_and_Truck_Repair]

@omarowilliams5291 it was the tracker from the previous seller!

[@giopirmisashvili5514]

Thank you ❤

[@KITS_Auto_and_Truck_Repair]

@giopirmisashvili5514 My Pleasure!

[@johnmwangi6291]

Man that was fun 🍻

[@KITS_Auto_and_Truck_Repair]

john mwangi thanks, I'm glad you enjoyed the video!!!

[@CADDY2714]

I agree with you 100% he is a good teacher ..

[@aarsenalfan]

Do you think that module was installed by GM with those connectors, have you asked costumer who did this, that's not your fault. 🤷

[@KITS_Auto_and_Truck_Repair]

@aarsenalfan the Customer didn't know about it, This module is an aftermarket module!

[@XqeDiosxqe]

Time to returned all those purchased items back to the store and try to get refunds jajajaj

[@KITS_Auto_and_Truck_Repair]

Nef Lol!

[@inspirationalspirit2499]

But I had my battery and alternator checked and said it was fine and told me I just needed to change my light bulbs.

[@KITS_Auto_and_Truck_Repair]

inspirational spirit I'm sure light bulbs would cause this problem to occur! is there a tracker in the car?

[@inspirationalspirit2499]

@@KITS_Auto_and_Truck_Repair what would that be? You mean like a gps?

[@KITS_Auto_and_Truck_Repair]

@@inspirationalspirit2499 no! maybe some aftermarket device added to the vehicle!!

[@inspirationalspirit2499]

@@KITS_Auto_and_Truck_Repair I’ll haft to check but I’m going today to have the battery & alternator checked again but I was told my bulbs need to be changed

[@KITS_Auto_and_Truck_Repair]

@@inspirationalspirit2499 ok!

[@gingerbackify]

Can't see video for ads

[@KITS_Auto_and_Truck_Repair]

@gingerbackify Sorry!!

[@abisismael1343]

Thanks

[@KITS_Auto_and_Truck_Repair]

Abis Ismael My Pleasure!!!

[@lauritagarza5400]

My truck is doing this

[@KITS_Auto_and_Truck_Repair]

Laurita Garza Check the alternator and look for some aftermarket add on devices!!

[@ivanpeterzell695]

Stinking interface module. Aftermarket 🤢

[@KITS_Auto_and_Truck_Repair]

Ivan Peterzell these aftermarket modules suck!!!

[@rickman1013]

Like everyone knows how to read a schematic. This is useless to the average guy,

[@KITS_Auto_and_Truck_Repair]

Rick Moran you'll be surprised how many people out there understand wiring diagrams, a lot of people do!!

[@Hobbyscrapperaustralia]

Don't watch his very informative videos then.No need to comment with something negative if you didn't find it helpful. Just move on

[@adamissah452]

Please i have subscribe 🙏 good teaching i hope i get your contact

[@KITS_Auto_and_Truck_Repair]

@adamissah452 Thanks and Welcome to our youtube community!

[@adamissah452]

🙏 you are welcome my boss