How to do the 4 or 6 high mod on an 03-06 full size truck for $3.00

chip said:

I have to go to bed, but bump this thread again (reply to this post) and I'll show you how to do it my way (all out) tomorrow.

Click to expand...

I will shoot you a PM as well, I'm in no rush. Have a few days before I'd get to it anyway. What me and my lack of electric skills are guessing is that it would work if I did the 6 High mod, then connect a diode from the HDLP-Low 85 to the Fog LP 85, with the gray part of the diode facing the Low relay. Will talk tomorrow. Thanks for the help.

Edit: After looking at the fuse diagram and writing it out, I might just try a few things to cut out redundancies but get what I am looking for. I guess at this point my question is what could I break in this process? Do I need to worry about anything touching anything, other than involving non-85 pins? I say this because I may diode the Fogs to the DRLs so the fogs are truly 24/7, and then will have to see whether I like the look of DRLs and Lows on at the same time or not.

You can jump the relay terminals with diodes. I converted my DRLs to Amber running lights and covered my photo cell - on top of the full time fog mod. Now I have full time, full auto: Lows, Running lights (w/Amber DRLs), Projectors, and Halos (w/leds) that I wired to the running lights and blinkers, so they blink as well. I can still control my lighting: Full time, full auto with "Off", "Parking only", Parking w/ Fogs", and the 8 - Hi mod (if you count the DRLs). All in all, I love the setup. It's really effective when you're in the passing lane, or on a dark road.

So all it is is using extra diodes to includd DRLs and blinkers, as I described in my last post? By "jump the relay terminals" you mean connecting with diodes as in the OP diode? If so, all of this is much easier than I thought.

Thanks again.

Yeah, it's not rocket science. You just have to understand how diodes and relays work.

Also: Don't forget that you can splice into another lighting circuit with regular wire. Just make sure the circuits have the same amperage and you're good.

How did yall remove the relays? Do you have to squeeze anywhere or press anything, or is it just a grip n pull? Was putting a decent amount of force into it, but did not want to break anything.

You just have to pull 'em out of there. You're not going to break anything. There's no special way of doing it. I used pliers.

Thanks for the reply. Had already looked at some other forums and figured I'd just try it. Used pliers, pulled those suckers like teeth. They came out clean, no clicking or popping, just a big, sustained pull. Anyway:

Finished this a little while ago, here's how I did it in order to get 6 High and Fogs on with Lows. Works exactly how I wanted!





Prepared to test it for first time:


It works! Highs on, therefore lows and fogs on. (In Park, so parking lights/side marker also on)


Lows on, therefore fogs on (and in Park)


As always, thanks for all the help guys!

Right on! Glad to see it worked out for you.

Real nice.


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Thanks for the how-to on this ... will be trying this over the weekend. (Newbie first post.)