C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

A DRL LED Wiring Challenge!

Thread Tools
 
Search this Thread
 
Old Oct 20, 2015 | 11:54 PM
  #1  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default A DRL LED Wiring Challenge!

I have a US purchased 1999 Coupe. In Canada we are required to use DRLs. There is NO requirement for amber turn signals. I would like to add LED DRL light strips. They would not replace any existing lights, rather provide additional lighting.

In a perfect world I would like the LEDs to function as DRLs along with the existing ones BUT when I turn on the signal they would flash along with the signal. In other words they would be steady on unless I activate the signal at which point they would flash clear. Once the turn is completed they would revert to steady on.

Can you assist me with how I can achieve this in terms of wiring and relays?

Thanks in advance!
Reply
Old Oct 21, 2015 | 09:13 PM
  #2  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default

Originally Posted by AUandAG
I added led's which function just like oem about 6 months ago. I'll try to find my diagram. You'll need 4 diodes and 2 resistors.
That would be great! To be clear though I am not looking to duplicate the OEM lighting. Rather I want OEM functionality AND flashing with the turn signal.

Thanks!
Reply
Old Oct 21, 2015 | 11:34 PM
  #3  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

What's wrong with hooking them to the DRL/Signal bulb power feed?
Reply
Old Oct 23, 2015 | 09:25 AM
  #4  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default

Originally Posted by lionelhutz
What's wrong with hooking them to the DRL/Signal bulb power feed?
Not to sound like a fool but I don't understand what you mean. I think the signals and DRLs are independent circuits...no?
Reply
Old Oct 23, 2015 | 10:12 AM
  #5  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

No, same circuit.
Reply
Old Oct 23, 2015 | 12:39 PM
  #6  
dadaroo's Avatar
dadaroo
Le Mans Master
 
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Default



Not sure if that will give you hyperflash, may or may not.

You would be adding an additional load on that circuit. I doubt just a few pure LEDs will be a problem but if for any reason you blow a fuse DO NOT put in a larger fuse.


Mr. Sam
Reply
Old Oct 23, 2015 | 12:50 PM
  #7  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default I am confused!

I am totally confused. The LEDs are two wire...ground and power.
I am 99.99% positive that the DRLs do not flash with the signal presently. So how would I do the wiring to get them to be steady on only interrupted by flashing with the appropriate turn signal?

Hyperflash is not an issue as I have already installed LEDs at the rear.
Reply
Old Oct 23, 2015 | 06:15 PM
  #8  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

The filament that lights up for the DRL function is also the turn signal so of course if flashes with the signal.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Oct 24, 2015 | 06:15 AM
  #9  
dadaroo's Avatar
dadaroo
Le Mans Master
 
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Default

The OEM stock bulbs have two filaments in them. One for the DRL/Turn Signal and one for the Parking light.

I have no idea what your setup is or what you are trying to replace it with.


Mr. Sam
Reply
Old Oct 24, 2015 | 07:28 AM
  #10  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default

Originally Posted by dadaroo
The OEM stock bulbs have two filaments in them. One for the DRL/Turn Signal and one for the Parking light.

I have no idea what your setup is or what you are trying to replace it with.


Mr. Sam
I want to leave the existing light functionality and add the LEDs such that they do the same as the existing two filament bulb. My LEDs are not switchchback just 2 wires.
Reply
Old Oct 24, 2015 | 01:21 PM
  #11  
dadaroo's Avatar
dadaroo
Le Mans Master
 
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Default

OK, I understand, then you want to tie the LEDs into the circuit for the DRL/Turn Signals. If you need wire colors we can provide that. On each side, one wire would be connected to the power in and the other to the ground side of the existing lights.

The LEDs have a polarity so you will need to figure out which wire is power versus ground on the LEDs. That is easy to do by testing using the battery.


Mr. Sam
Reply
Old Oct 24, 2015 | 02:10 PM
  #12  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default

Originally Posted by dadaroo
OK, I understand, then you want to tie the LEDs into the circuit for the DRL/Turn Signals. If you need wire colors we can provide that. On each side, one wire would be connected to the power in and the other to the ground side of the existing lights.

The LEDs have a polarity so you will need to figure out which wire is power versus ground on the LEDs. That is easy to do by testing using the battery.


Mr. Sam
Thanks. I am familiar with LEDs and can easily pre-sort the polarity. Remember I have two wire non switchback LEDs. I am still trying to understand where I would hook up the power side of the LEDs. Can I simply splice into the LED wiring giving it two feeds then use one for each existing socket?
Reply
Old Oct 24, 2015 | 03:08 PM
  #13  
Stroker87's Avatar
Stroker87
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2014
Posts: 2,725
Likes: 149
From: chicago area IL.
Default

not sure i follow but it would be very simple if you install "switchback" bulbs in stock front turn signal locations there white until you use a turn signal then switch to amber then back to white once the turn signal is turned off


Reply
Old Oct 24, 2015 | 03:31 PM
  #14  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default

Originally Posted by Stroker87
not sure i follow but it would be very simple if you install "switchback" bulbs in stock front turn signal locations there white until you use a turn signal then switch to amber then back to white once the turn signal is turned off


https://www.youtube.com/watch?v=XOn-7pTAuRk
Thanks. I know switchbacks are dead easy. My problem is that I bought a set of corner lights with non switchbacks installed inside and would like to use them..
Reply
Old Oct 24, 2015 | 07:21 PM
  #15  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

Originally Posted by formula1nut
I want to leave the existing light functionality and add the LEDs such that they do the same as the existing two filament bulb. My LEDs are not switchchback just 2 wires.

So, you want them to light up as parking lights as well as DRL as well as operating as signal lights?
Reply
Old Oct 24, 2015 | 08:55 PM
  #16  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default

Originally Posted by lionelhutz
So, you want them to light up as parking lights as well as DRL as well as operating as signal lights?
No not parking lights; just DRL and signals.
Reply
Old Oct 24, 2015 | 11:26 PM
  #17  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

OK, hook to the signal and ground wires in each corner light. I believe it's the dark blue at one corner and light blue at the other corner for power and black for ground.

If you don't include parking lights then it isn't the same as the 2 filament bulb functions.
Reply

Get notified of new replies

To A DRL LED Wiring Challenge!

Old Oct 25, 2015 | 07:01 AM
  #18  
dadaroo's Avatar
dadaroo
Le Mans Master
 
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Default

Verified with the FSM.

The power wire for the left DRL/Turn Signal bulb is Light Blue/White.
The power wire for the right DRL/Turn Signal bulb is Dark Blue/White.

Ground is Black on both sides.


Mr. Sam
Reply
Old Oct 25, 2015 | 09:20 AM
  #19  
formula1nut's Avatar
formula1nut
Thread Starter
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 612
Likes: 74
From: Ontario
Default

Great. So to be clear if I do this the LEDs will be on always as DRLs and flash with the signal?

Thanks all!
Reply
Old Oct 25, 2015 | 09:59 AM
  #20  
dadaroo's Avatar
dadaroo
Le Mans Master
 
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Default

Yes, they will work exactly the way you want but you may end up with hyperflash which you can resolve with a Hyperflash harness.


Mr. Sam
Reply



All times are GMT -4. The time now is 08:29 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE