GM Truck & SUV Turn Signal Problem 1999 - 2013 Chevy and GMC (GMT-800 & GMT-900) | AnthonyJ350
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- Опубликовано: 11 сен 2024
- If you have a 1999 to 2013 GM truck or SUV you might be encountering turn signal issues. Symptoms may be: Hyperflash, Turn Signal Indicator not working, Brakes flashing with the turn signal or no turn signal at all.
In this video we go over areas to inspect and parts that may need to be replaced.
Parts:
Flasher Relay: GM Part# 10383321
Rear Junction Block: GM Part# 15304995
#GMT800 #GMT900 #TurnSignal
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I am a Mobile Electronics Certified Professional 12 Volt Installer (MECP Certified), Business Management Graduate (KPU), with a Professional Driver's License and a genuine automotive enthusiast who loves working on vehicles and I want to share my experiences with you. The goal is to help other people who can hopefully learn from my unique outlook towards vehicles, experiences and working practices.
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GM Truck & SUV Turn Signal Problem 1999 - 2013 (GMT-800 & GMT-900) | AnthonyJ350
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![MISSING: SLIM SHADY [Expanded Mourner’s Edition Trailer]](http://i.ytimg.com/vi/xh8qgHrOO1g/mqdefault.jpg)
Almost bought a GMC AT4X for $100k! I've been driving around in my 2002 Silverado for the last 15 years. Its paid off of course. Decided to sink a few thousand dollars in it instead of buying a new truck. Just too damn expensive. I've replaced a lot of things from door locks, ignition switch, door latches and hinges, windows and motors, to the hvac actuators and many other components. I have to say, the truck drives and feels like new again. I'm much happier with my decision.
You fixing your perfectly good 2002 was the right choice. Better financially and for the environment too, because you help reduce production emissions.
If you get a good old vehicle, and have some basic skill and tools, regular maintenance can help it last a really long time. My 1998 Chevy 1500 is at 382k miles, still running good.
@@Moondog66602 Most definitely. I prefer older vehicles, much easier to diagnose and keep going.
My 06 Yukon has the same junction block and so did my 06 Sierra. Even my new 2018 Sierra has the same thing. I've never have had to do anything to that, but I live in Northern CA. We do get rain, but no snow or salt on the roads. I bet people who launch boats may have issues with that part. Good video!
That's a good point about boat owners. Thanks for watching!
Anthony nice isolation of the malfunction although I would not have replaced the part once fixed. I also would have used Deoxit with an acid brush on the pins to throughly agitate the product thus removing any embedded corrosion. Blown it air dry, then put a pea size drop of dielectric grease in each connector. That should make it water resistant for years to come. No parts required.
But why risk it? It lasted 16 years, just change the part and not worry about it. It was like $100.
But didn't you see the example of condensation? What if moisture is going through the case? We don't know how it's manufactured.
@@AnthonyJ350 Sometimes OEM and aftermarket modules/equipment seals get "Tired" and fail to seal adequate...When possible, I'll take them apart and reseal with All Weather RTV Selicone. Save the replacement parts money for some other fun things.
@@stealthg35infiniti94 Would you take apart this completely sealed unit that controls the lights and trailer brakes? Would you risk driving with the old part?
@@AnthonyJ350I always attempt to repair first to a reliable point. If I don't feel the repair is not going to have much longevity, then I replace the item. Other factors come in to play, such as replacement cost, how long does it need to last, how critical is the part, is it a high failure item? Every situation has its own opinions to contain with.
I just started to have similar problem and going to pull this module and clean and retest tomorrow. My truck is in Albuquerque new mexico. It is a 2000 with 285k. I did crawl under and take a peak at this module and it looks like it has never been removed.
Let us know what you find!
tbis has to be the one vid im looking for i hope
Hope it helps you!
Great video helped alot!
Glad the video helped!
Thank you so much for your excellent video
Thank you for watching!
I actually don't think the problem was 'inside' the module!
Having specialized in finding difficult electrical problems, the most likely cause is the connectors themselves.
It appears that distribution block is just that. I suspect there is NO circuitry inside it (at most, might have two diodes for the high brake l lamp - and these symptoms didn't directly correlate to the high brake function).
[It might not even have a PC interconnect board at all, could be welded buss strips inside].
I do not dispute replacing it, but if it was the harness connectors, then a more meticulous inspection of both the plugs and the jacks, would have been the most helpful.
If the module jack pins were in good shape, and the corrosion was mainly in the plugs, then replacing the module did nothing.
Cleaning, spraying and re-mating the plugs, is what likely fixed it.
I do like you; I spray a cleaner/lube first, as it can penetrate down to the wire crimps that the grease won't reach, and also the receiving socket's interior area (male pins).
Then I apply grease to the female end, and re-seat the connectors several times before final engagement.
[A 1/16 or so of grease in every pin 'port' is all I use, but you could 'pack the sleeves pin ports if you anticipate extreme conditions.]
Note, TOO much grease can trap air pressure and blow out the connector's nose gasket ring, or the rear wire boots/sleeves!
What he showed is about how much grease I apply.
Mr K L
Thanks for the comment!
Thanks this help me a lot
So glad to hear it helped you!
Love your channel. I did this even though it didn’t look bad and also changed the flasher to Novita and didn’t fix my problem. I went to all led bulbs and they all work except the rear turn signals. When I put the led rear turns in, all 4 side markers stop working. When I put the incandescents back in, everything works as it should. Before the flasher, I put resistor turns in and everything worked until I turned the headlights on. Seems every time I try something, a different problem arises. Any idea?
Check out my GM truck grounds video ruclips.net/video/Dql0Uu8-SNk/видео.htmlsi=oxeezQX5d0ns0jOG
And install load resistors at each turn signal bulb.
You should do more content on your cateye
I have a whole Playlist. You didn't see it?
I have but more 😂👍
@@rodrigodeleon8777 yep!
Nice
Thanks for watching!
I have an 04 2500hd
But my front ledt turn signal lights up when I apply the breaks. What would case this to happen I changed the switch relay under the steering wheel
Voltage bleed through. What brand LED did you install?
2003 GMC 2500. I had the 7-pin plug apart on the truck bumper and have no power on the red (left blinker) wire while the right brown wire is fine. The panel you replaced, does this control the trailer too? I have a buddy who tells me the Rear Junction Block could not be the issue.
Could be the junction point. Did you check all the fuses?
@AnthonyJ350, I didn't check any fueses. if it would be a fuse, wouldn't the blinker not work on the truck too? Are there fueses for the blinkers on the trailer and they are separate from the rear truck blinkers?
Is the juction point by the rear window, drivers side? I couldn't find it.
@@patrickschley6418 It's on the frame near the spare tire. I show it in the video.
@@AnthonyJ350Thanks for replying. I know just what you're talking about, I did see it here. That was my first choice to replace. Based on what you're saying, that would have control over the blinkers for the trailer and the truck, but separately? If the trucks left blinker works but not the trailers left blinker, that box controls it?
Dang, just throw the parts cannon at it. That'll fix the issue!
We did
So I have a 2005 Silverado 1500 when I turn on my turn signals to turn the signal bulb and the running bulb turn on together on the taillights, how can I get them to alternate back and fourth?
They don't alternate when you turn your lights on? Mine is the same year and just does it.
@@AnthonyJ350 no what I haven’t tried actually turning them on and see what they do, going to check in a while I was just looking during the day.
@@Raider_Jimmy Try it and let us know
@@AnthonyJ350 so this group I follow on fb told me that they don’t alternate because I have led bulbs in them 🤦♂️
@@Raider_Jimmy I have LED bulbs too. Is mine the only one? Did you try it with the lights manually on and signaling yet?
Hello! How can I get in contact with you? I would like to know about a costumized sub box
-Aroon
Hi there, you can email me at info@gofasthavefun.ca
I’ve done everything in this video and more and can’t fix my turn signal issue. Anyone have any suggestions
What's the issue? Might be the turn signal switch itself.
The great white north were even rust starts to rust.
Thanks for the comment
So..I changed this Module and STILL All my rear lights are blinking with the turn signals! I'm thinking "Where else do all these lights/wires come together where they can cross each other"?? I guess the Trailer Plug. PLEASE help if anyone has a idea if this can be a ground or what else it can be. Meanwhile I'm gonna light test everything and hopefully find the issue.
Did you change the relay? Check the grounds as well.
My turn signals arnt workin or wont make noise is it cus i changed my turn signals to switchback LED BULBS?
Did you install load resistors? ruclips.net/video/NMoYGQhD2DI/видео.html
@@AnthonyJ350 they have built in resistors on them they was workin fine but recently rn nun my singals work or make or make noise
@@omargarcia1996ogog The relay flasher might need to be replaced. I showed it in the video
For a 2002 tahoe is located in same place?
@@omargarcia1996ogog Haven't verified but probably similar. The frames are different.
Y is it my relay is a lot smaller on my 2091 Tahoe there a bit. Biger on video
No idea
This video was not good for a 2009 Silverado. They don't have a flasher relay. It is in the bcm...
You still have that junction piece in the back on the frame. Which is where I had the problem and what the video was predominantly about.
Hey I have a 09 Silverado and my entire left side (blinker and brake lights) do not work. I have checked all the fuses and even gotten a new fuse panel. What did you find wrong with your Silverado?
@talonsheek3593 I have a 2010 and having the same problem. Did you find out what was wrong?
Yeah this isnt applicable to 2008 chevy Avalanche. From everything I've researched the flasher module is built in to the BCM. Pass Rear blinker doesnt flash with standard bulbs and with led they work but hyperflash. Other side works perfectly. I work on mechanical all day but electrical is a headache for me. Is there a ground on the rear somewhere that could affect only one light?
I would measure the ground wire on each side. I had headlight issues due to a poor ground a couple years ago.