Information needed on LED side marker lights

[Elliot949]

know I saw a post on this before but I will be darn if I can find it...

I got a set of LED side marker lights for my 71... The standard side marker lights are a 2 wire set up and the LED's are a 3 wire... I know my Front lamps work with the turn signals...

How do I wire these to work correctly...

Thanks... Dan

[VetteVet]

..............


Maybe this was it.

http://67-72chevytrucks.com/vboard/s....php?p=2122953

Here is the wiring diagram for the marker lights. On the early trucks they didn't blink. I think that the73 or 75 and up models they blinked.

Remember the polarity on LEDs is critical, if it's reversed the lights won't work.



it appears to be small so I'll see if I can find a larger one.

[Andy4639]

71 and 72 front side markers blink with turn signals on backs don't. My 71 is all LED's and the side markers are just like the orignals.
I bought these and put the good LED bulbs in them.

[Elliot949]

Originally Posted by Andy4639

71 and 72 front side markers blink with turn signals on backs don't. My 71 is all LED's and the side markers are just like the orignals.
I bought these and put the good LED bulbs in them.

These are all contained in one unit...

[72kool]

all '71-'72 the sidemarkers blink with the turn signal?? how are they wired to do that then? my '72 does not but would like em to

[Andy4639]

Here is mine. Front side markers have 2 wires and I assume one is parking lights since they come on with the parking lights and the other is the turn signal since they blink. I have never taken them apart to trace but it make since they are tied to the front parking lights wiring.

The rear are only one wire in and out to ground you can see in my pictures.
I have never changed the wiring on this truck it's as it came from Chevy.

All these video's where taken inside the garage in darkness!

You Tube

You Tube

You Tube

[Elliot949]

Thank to all for the two wire information but this thread is about hooking up the 3 wire LED lights to the two wire system...

[Andy4639]

Originally Posted by Elliot949

Thank to all for the two wire information but this thread is about hooking up the 3 wire LED lights to the two wire system...

This is my point exactly.
My reason for the pictures and the info I thought would be helpful to you and 72kool. The factory never ran 3 wires to the front are back.

You bought a light that has three wires but your truck only has 2.
You will have to figure out which wires are which in your light setup. 1 wire will hook to the parking light wire of the truck, 1 wire will hook to turn signals of the truck the thrid wire will be ground for the LED's it self! LED's need a good ground to operate.

You will have to tie the rear light into the wire that is already there for the marker light. Which you will have to figure out which wire to tie to on the light. Then run new wires to each back marker to tie into the turn signals if you want them to flash. Then ground the lights them selves as my pictures show once you figure out which wires on the lights are for the grounds.
All my info is just common without knowing the lights that you bought and not being able to check them.

[72kool]

thanks for the info andy. where did you get the led bulbs for the side markers? i would like to do all led lights on my truck eventually

[Andy4639]

Originally Posted by 72kool

thanks for the info andy. where did you get the led bulbs for the side markers? i would like to do all led lights on my truck eventually

The bulbs I got at O Reilly's. Off the shelf.

[Elliot949]

Thanks Andy... your help is greatly appreciated.

[9teen69]

Here's how I hooked mine up, front and rear side markers blink.

[9teen69]

And back

[9teen69]

Also have to have the LED flashers incase you didn't know .

[9teen69]

..

[Andy4639]

Originally Posted by 9teen69

And back

Where did you tie into the turn signal wire? I assume you have them flashing when turning. Can you show a video of how it looks when turning?
I had to get the flasher's when I put the front parking lights in. Before that everything worked without them.

[9teen69]

Spliced into the green wire. So I have one to brown and one to green and the ground. PM me with email and I'll send video, not sure how to upload.

[Andy4639]

Originally Posted by 9teen69

Spliced into the green wire. So I have one to brown and one to green and the ground. PM me with email and I'll send video, not sure how to upload.

I upload mine to You Tube then paste them here.

[9teen69]

Video...

https://youtu.be/3r6D3IdKrCY

https://youtu.be/eZfNKNSFy1k

[Elliot949]

Hey 9teen69... Thanks a ton... That is EXACTLY what I needed... So did you get your Flasher from like O'Reilly's or someplace like that?...

[9teen69]

Got mine from Classic Industries but I have seen the flashers at the local auto parts store

[Elliot949]

Originally Posted by 9teen69

Got mine from Classic Industries but I have seen the flashers at the local auto parts store

Thanks...

[Andy4639]

Originally Posted by 9teen69

Video...

https://youtu.be/3r6D3IdKrCY

https://youtu.be/eZfNKNSFy1k

Cool man!

Elliot949, I got mine when I ordered the lens, but yes I have seen them at O-Reilly's.

[72kool]

ok so if i want led sidemarkers, that blink with the turn signal, i have to wire them each into a flasher and not just wire them into the blinker wire? just making sure. i know its a dumb question.

[9teen69]

Originally Posted by 72kool

ok so if i want led sidemarkers, that blink with the turn signal, i have to wire them each into a flasher and not just wire them into the blinker wire? just making sure. i know its a dumb question.

Flashers only on fuse block, refer to photos of mine above. I unplugged one Just to show what flasher looked like.

On my 72 rear side markers I connected the red wire from LED to the dark green, black to brown and white to ground.

Hope that helps .