Need some electrical advice for my headlights

[ramffml]

My truck has aftermarket headlights, with separate electrical feeds for the daytime running lights. This separate wire for the DRL's only, goes directly to one of the fuses in my fuse box though I don't remember which one.

As my truck is starting, as soon as my truck starts to turn over the DRL's recieve power and sort of flash or cycle quickly between dim and bright while the engine is turning over, then when it eventually fires up the DRL's look stable and never flash again.

I'd like to get rid of that flash while the engine is turning over. Either by running to a different fuse that has a delay on it before powering the circuit up (does one exist), or by adding my own timer/delay to the circuit somehow.

Any one have any thoughts on this?

 

[crash68]

It might be possible to add the wiring to run the DRL lights from the BCM so they function like OEM. I did this with my '15, I even have the option in the radio to turn the DRLs On/Off.

Or you can slap a 10sec time delay relay on them. https://a.co/d/hhLCewS

 

[Mlarv5]

Get a timer relay. It will allow you to get your truck started before the relay kicks the lights on. Timer Relay

 

[ramffml]

It might be possible to add the wiring to run the DRL lights from the BCM so they function like OEM. I did this with my '15, I even have the option in the radio to turn the DRLs On/Off.

Or you can slap a 10sec time delay relay on them. https://a.co/d/hhLCewS

That looks sweet. Do you have any comments on how to install it? I know just enough about electrical to burn it all down.

 

[crash68]

Do you have any comments on how to install it?

Disconnect the DRLs as you have them wired then:
Wiring as follows:
85 - Ground
86 - to the fuse that was powering the DRLs with now.
30 - constant +12V (battery w/fuse)
87 - wire to the DRL lights

 

[chopperman1]

86/30 can both go to the same that's powering the DRL now rather than running another power tap. No?

 

[RamDiver]

86/30 can both go to the same that's powering the DRL now rather than running another power tap. No?

85 & 86 are supplying 12VDC across the time delayed coil to energize the relay.

A ground and the existing DRL 12VDC fused power source.

30 is connected to a fused 12VDC & 87 would become energized after the delay and used to supply voltage to the DRLs.

You have to add a new ground wire and a new 12 volt wire for the relay.

He could connect the existing DRL power wire to 86 and add the new wire from 87 to the DRLs or add the new wire from the DRL power source and connect the existing connection to the DRLs to 87.

I would expect the second option to be easier, which would be why Crash suggested that.




.

 

[crash68]

86/30 can both go to the same that's powering the DRL now rather than running another power tap. No?

You could, I've always like to tap a clean power source for relays.