My 2022 T4R

Hopefully this picture will help better explain what I wrote above. The end with the orange arrow connects to the OEM harness off the DRL bulb, and the end with the green arrow now connects to the new LED DRL bulb. The red and black wires that run between the ends of the new harness have to be cut (remove the wire cover first). Take the black and red wires from the orange end and splice them together, then connect them to the red wire coming off the green end. That leaves the black wire coming off the green end that has to go to ground. It's pretty easy to do, and makes the LEDs for DRLs work like they're supposed to.

 

I am planning on making this harness this weekend. If it works, I’ll make a spare and I can let you know in case you still want one.

 

would love to pick up a harness if anyone has an extra laying around! please let me know! thanks!

does anyone have amber bulb recommendations by chance as well?

 

By amber bulbs I'm assuming you're referring to turn signal bulbs? If so, make sure if you get LEDs, that they have built-in resistors. The first set I got didn't, and they hyperflashed. The next set did, and they blink like normal. However, the LED fronts I'm using aren't dual-element, they're single element like the rears, so they only act as turn signals, not marker lights.

 

This has links to the bulbs. Front ones have dual-element and all work perfectly so far.

https://www.4runners.com/threads/turn-signal-switchback-lights.35324/page-3#post-527402

 

Amber led for the DRL swap.

 

can these be used for the drl swap?

 

I think it depends on the year. On my '23, the DRL is a dedicated bulb, with the low/hi beams being a single bulb in the projector. On mine, the turn signal bulbs will NOT work as DRLs, it's an entirely different bulb (closer to a typical headlight bulb than a turn signal bulb). On my '23, I think the DRL is an HB3 bulb, while the front turn signal is a 7444?

 

Same on mine. These are the bulbs I used for the DRL replacement. Looks like they only have them in white. Maybe some other source has them in yellow?

https://www.diodedynamics.com/9005-hp48-led-bulbs.html

 

Nope. Those are only for front+rear turns and reverse lights. My previous post has the DRL replacement.

 

Auxbeam on Amazon sells amber bulbs for DRL. I have the white ones from them, but they have a very slight flicker on my 2022, it's only noticeable when you're close to the lights and looking at them directly. I was ok with it until I ran into this harness fix. I am waiting for parts to make a harness to see if it fixes the flickering.

 

I ended up using those bulbs, in yellow. Along with the harness mod, they work perfectly as DRLs. I had white LEDs (9005/HB3), I think they were Auxbeams, and they worked fine with the harness mod. I wanted yellow ones for DRLs, so based on what's been posted, I went with the DDHP48s.

 

Anybody have a spare harness they would like to sell?

 

harness done. grounded and just waiting for LEDs to arrive.

 

I have an extra harness $20. pm me

 

Sold

 

I also have an extra harness for $20. pm me if you want it.

 

Is it just me, so does this wiring harness mod look strange?

 

How so? it’s identical. I added more black tubing around the ground cable as well.

 

I see it now, just a lot longer than what I did with mine, and I didn't use wire covers...

 

Yeah i was lazy and didn’t want to measure and for fear of going too short i Just went long and I may cut it down.

 

If anyone has an extra harness for the DRL's change, I am ready to Zelle payment. Let me know, thanks.

 

I got you! DM me and we can sort out details.

 

just DM'd you.

 

You know you can get a pair of these harnesses and make your own for under $7...

$7 iJDMTOY 9005 HB3 9145 H10 9006 HB4 Extension Wiring Harness Sockets Wires Compatible with High/Low Beam or Fog Lights Use

Amazon.com: iJDMTOY 9005 HB3 9145 H10 9006 HB4 Extension Wiring Harness Sockets Wires Compatible with High/Low Beam or Fog Lights Use : Automotive

 

fun project thanks for guidance

 

I know, but I was good buying one, if another member had one to sell.

 

I'll have a spare harness soon. Just ordered stuff yesterday. Will post again after I get them made.

 

I've got everything I need minus the ground wire and spade or ring terminal. Did anyone disconnect the battery before messing with the lights/ground post on the body...or don't worry about it?

 

I didn't disconnect the battery when I installed the grill lights or underhood lights (two different days). Just be careful and don't be touching wires where they shouldn't go, and you'll be fine...