medwardsr

Does anybody know where I can find the wiring diagram for the headlights and other power sources? I'm trying to tap fog lights into the headlights but all of the DIYs seem to only tap into the DRLs.

Also any extra info or tips/tricks that you know about this procedure would be greatly appreciated. Basically will be running a DIY setup with Morimoto XB led's and a wiring harness off amazon.

richard203

iTrader: (1)

is this 2013-15? or 16+?

medwardsr

My apologies, this is for a 2014

richard203

iTrader: (1)

here you go.

medwardsr

Where were you able to find this at? I might be able to understand it better if i'm able to view the full image

richard203

iTrader: (1)

TIS. um that is the headlight wiring diagram. o.0 all the wire for the headlight is there drl,high beam, and low beam

Cwang

ssj4gts

I have a 2018 Lexus IS300 and i'm trying to tap on my DRL wiring cables. I noticed that my DRL has black, yellow, and green cable. I am assuming the black is ground but not sure what is the yellow and green cable. Please help.

EAST

I initially thought this was for a GS and was going to say for the 2018s, you'd likely have to tap into the wiring into the headlight since it's all controlled by Canbus.

For an IS, do you also have a white wire with a black stripe? Is it a 3 pin connector? If yes, and pin 3 is a white/black wire, then that is ground. And pin 2 is a black wire, which is tail light (aka when your headlights are on). Pin 1 is also black and is the DRL wire. As always, double check voltages with a multimeter.

If it's not a 3 pin connector, then let me know what colors you see. I might be looking at the wrong thing.

EDIT: Just reread you comment. So you see a black, green, and yellow. Let me see what that matches to.

EDIT 2: Ignore what I said above. It looks like I was looking at a 2015. I can't currently find a 2018 diagram. Either way, if it's a 3 pin, you should be able to easily check voltage. Don't always assume black is ground

ssj4gts