Part # Request - headlight connector

One nice thing about the stalk is it already forces a DRL or low beam but not both situation.

 

Yeah, it would need that second relay. Basically you’d close the relay triggering it with the ground from the stalk, and the second relay opens the circuit when the headlights are on. That second one to open the circuit is because the DRL trigger stays grounded when the headlights are on with the AUTO stalk.
On my personal truck, I had to do this work around as well adding the AUTO function to a truck that didn’t have it. I also added a 3rd relay to open the circuit when the parking brake is applied, which is a stock function, but really not needed. If I didn’t have the tap right there from swapping head units, I would definitely have skipped the parking brake option.

 

Not to be unnecessarily annoying but if this were me, instead of OEM 3 way female to DRL male to DRL female to MX-150, I'd cut and crimp a male 3 way matching your SR onto the conversion harness. That's one less connection in the mix, less bulk too. We can find you the 3 way male, but I won't proffer a guess without consulting my docs now that I've f'd up once

Sarah (corsa owner) is pretty cool about changes if she hasn't shipped already.

 

Thank you for the tip about the hyperflash and resistor. I will keep this in mind incase my lights start acting up.

Right now my white bright DRL is turning on with the ignition on and goes dim with low beams on. The stalk does not control the white LED in DRL mode but it does turn on and off the amber lights.

I don't mind the setup now as I never really turn the DRL off or have a need. Would be nice to have 100% factory controls though.

Are you referring to the SR DRL/turn connector for this? Right now I have a 2 pin non SR with the 2 wires depinned from the 3 pin and the other wire is not used.

If you are referring to the TRD halogen DRL connector, the SR models do not have this connector.

 

Exactly, so why did you order one? If you intend to mate to a conversion harness, I'd modify the conversion harness directly to mate to your SR.

 

The new adaptor harness has a female 4-pin (3 Wire) for the DRL just like the TRD headlights. To mate to my SR harness I would be cutting the 4-pin off the adaptor harness (like I did with the TRD halogen lights) and just soldering to the wires I added since there is no SR connector for this

This will work but makes it a pain if I ever want to remove the lights. Also I should have ordered this connector when I originally did the TRD halogens so I wouldnt have had to cut this 4-pin connector off the lights.

 

So, my suggestion was to order the 3 position male which mates to your SR 3 position female so you can plug it together cleanly and toss these 4 way DRL connector females in the trash as non/applicable to your SR.

 

I guess I'm not following, unless I'm missing something here.

If you are referring to using the SR DRL 3-pin connector for DRL/turn and wiring this in place of the 4-pin - wouldn't this make my new DRL blink with turn signal activated? And I would be missing my connection for the turn signal

 

De-pin the OEM turn female to a 2 way TRD turn, mates directly with the TRD conversion harness, disable DRL (I think you've already done all this?)
Stuff your new DRL signal out of your switch + relay to 090II female in the 3 way OEM connector which now serves up parking light, drl and turn.
Get a new 3 way male, cut off the 2 wires from the TRD conversion harness, re-crimp as male terminals and mate up with the 3 way male to your OEM connector for DRL and Park, though any 090II 2 way works fine too since you don't really need to care about ground.

 

I can do a picture.

This is your setup I believe?

 

This is what I think you intend to do?



Male 4 way to conversion harness female 4 way. Note the gender change which means you either need to cut and crimp your OEM wires or do a 3 way male to 4 way male in between.

 

This is what I would do instead.



Get a 3 way male to match your Oem 3 way female. I can send the link.

de-pin the TRD conversion harness turn male to this new 3 way in the correct spot.
Cut off the 4 way DRL connector on the TRD harness and crimp male terminals on the conversion harness (can do this on the bench, yay)
Match up parking light to the correct Oem spot.
Then if DRL is needed from this feed, crimp on a female and stuff it in the last spot. But you are disabling that on the OEM side anyway and doing custom switch and relay and two wire output so not super sure about your needs there.

 

Basically, the TRD DRL connector gender situation is kinda dumb/lame and sticking with that to keep the conversion harness intact means either an intermediate gender change stubby or cut and crimp on the OEM harness which is what I'd avoid if possible. Better to cut and crimp on the conversion harness since that can be done on the bench, change to female, then use your OEM 3 way for the most part as-is to provide park and turn and maybe change ground to DRL if it needs to feed through this way since you most likely don't need the ground for anything.

Anyway, long story short, the DRL male is in my mind only worth considering for 3 situations:

1. A halogen T harness for halogen equipped trucks
2. Downgrading from OEM LED to Halogen (one or two guys have done this, I try to discourage)
3. SR to TRD conversion harness for TRD Halogen headlights on an SR (I also try to discourage this since it's not a functional upgrade and it's not cheap)

For everything else I'd use a female connector truck side and male on the harness side which is kind of the standard everywhere except these DRL connectors. And I'd also use a 3 way connector for 3 wires over a 4 way with a blank plug (note you didn't ask about the plug to seal off the unused spot(s), Corsa has those too, but you can also use caulk or anything you want there.

 

I already have a 2-pin for turn that I de-pinned the 2 conductors from the 3-pin with 1 conductor still hanging out in the old 3-pin.

This is my concept below. There is no gender exchange going on here. Will be straight plug and play.

 

The idea is to run the configuration above so in the case that I ever want to switch back to TRD halogen lights, I simply disconnect the adaptor harness and the TRD halogen lights are ready to go. I have no desire to ever put SR light back in the truck and I'm probably wasting money here for the male 4-pin because I dont see the new LED lights coming out either - unless I was to trade it in.

The drawing above was a quick reference. I realize the ground is missing on one of the connectors (high?)

 

Bottom is the conversion harness?

Assuming I'm correct on that then a 2 way there works and I'd stay female on the truck side and male on the harness side but I can see how you want to minimize work. I'd have your parking light signal (from that 3rd wire you aren't using) feed in directly and then add the new DRL signal to that, in a 2 way connector, and you're good to go with one crimp and a gender change on the conversion harness.

It's kinda silly to use a 4 way for 2 wires. Makes sense on a TRD truck where it's already there but no real value on your SR.

Basically I'd either stuff these:



Into this:



And feed to 3 way male on the conversion harness.

Or, do a 2 way, female on the truck, male on the conversion harness:



And cap the 3 way female with a male for waterproofing.

NOTE, per the circuit above, you're using a low beam to turn dim mode on which is cool but not quite the same as TRD behavior. On a TRD truck, the parking light signal is active when the stalk is set to parking lights, triggering the sidemarker and the lower light/TRD/PRO emblem lights, then the C goes dim once low beams are on.

So, I'd probably route the parking light signal as-is to your parking light input and just keep your 1 "high" or "bright" drl input on the drl signal since you already have a clean relay ensuring that goes off when low beams are on. Hence, I'd recommend using a clean parking light signal to feed to the light, either from your sidemarker or your 3 position orphaned wire.

The upside to a female on the truck side is you have that wire ready to go, and you even have a connector, just need to mod the conversion harness.

But, I realize I may not have explained this well and my preferences may not be yours on how to do things. If you want the plugs, they are SUMI-PG2's I believe.

 

Ah, this is a potentially valid reason to do as you are planning. However, I think every single one of us who has gone OEM LED quickly determines that we'll never ever go back to that halogen headlight. I hear you, though, you want to convert your truck to a "TRD" trim as far as headlight connectors. That makes a little bit of sense given the work you've done so far to cleanse the DRL feed.

I would re-think your low beam vs park to feed the "dim" input, I'd want my sidemarkers on w parking lights.

 

I can agree with your bottom statement. I have yet to install the lights, so you're probably right that I won't like this functionality and change it down the road. This is all very good insight for future reference when I finally do install.

 

Headlights are installed and working/looking great. Everything is now plug and play to the new conversion harness.

I also opened these up an did the plastics in satin black with klearz side reflectors.