LX 570 - SS3 Fog Lights (w install)

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Thanks for the detailed install post.

I have these in the mail and hoping to install next weekend (along with my Group 31 battery) - figured I would kill two birds while I had the wheel liners out.

Has anyone figured out where to tap into to activate the backlight with the DRLs? I searched and have not seen anyone document this.

I will be taking a shot at it on my 2014 LX570. Believe there are two ways - use the provided tap and tap directly into the DRL wire behind the headlight assembly (what color is it?), or use an add-a-fuse to female connector directly in the fuse box.

I am thinking former will be easiest if I can just identify the DRL wire. Anybody have schematics or diagram?
 
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I have mine wire tied up waiting for someone the be the guinea pig. I poked around there are a few different looms with connectors behind the wheel liner that you could possibly run the tap to, just not sure which wire. I agree that it would be much easier to run the tap to each DRL or marker light, rather to the fuse box.
 
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I have mine wire tied up waiting for someone the be the guinea pig. I poked around there are a few different looms with connectors behind the wheel liner that you could possibly run the tap to, just not sure which wire. I agree that it would be much easier to run the tap to each DRL or marker light, rather to the fuse box.

I did some digging around in anticipation of install next weekend (also ordered all new diode dynamics HID and LEDs for highs, lows, front and rear turn signal, reverse lights to replace while I am at it).

Based on below photo and diagram, I think the left white plug and harness is the Low and the right black plug and harness is the turn signal. The High housing is off to the right with light gray cap/cover.

The diagram does not show a unique harness for the LED DRL strip so I am guessing it is housed in the Low harness somewhere.

1FD77907-0D63-4DAE-A94C-417C67584BFC.jpeg

BCDFD525-442A-4AC1-AE76-DCFFB2F7C2BE.jpeg
 
Joined
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I did some digging around in anticipation of install next weekend (also ordered all new diode dynamics HID and LEDs for highs, lows, front and rear turn signal, reverse lights to replace while I am at it).

Based on below photo and diagram, I think the left white plug and harness is the Low and the right black plug and harness is the turn signal. The High housing is off to the right with light gray cap/cover.

The diagram does not show a unique harness for the LED DRL strip so I am guessing it is housed in the Low harness somewhere.

View attachment 3221014
View attachment 3221015

Found this via google image search. No idea if it is accurate or
what all the acronyms mean.

 
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Found this via google image search. No idea if it is accurate or
what all the acronyms mean.


I think I am going to buy a cheap voltmeter and go through process of elimination to see which wire in the harness is hot while the DRLs are on.
 

lx200inAR

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I think I am going to buy a cheap voltmeter and go through process of elimination to see which wire in the harness is hot while the DRLs are on.
Are the DRLs on the 2013-15 not the high beam? On the 08-11 it’s the high beam and there are a series of relays that reroute 12v to put the high beams in series (instead of parallel) and adds a resistor to the circuit to dim the lights.
 
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Are the DRLs on the 2013-15 not the high beam? On the 08-11 it’s the high beam and there are a series of relays that reroute 12v to put the high beams in series (instead of parallel) and adds a resistor to the circuit to dim the lights.

The DRLs on 13-15 is the LED panel along bottom of light.

64DDAFD8-6496-4C48-87BC-7B0264EB7AB6.png
 
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Got an early start on this today while “working” from home.

Paging any electrical engineers.

I bought a voltmeter and tested the headlight plug in various permutations of the headlight switch. I thought I would quickly be able to identify the DRL wire while just the DRL was on, but unfortunately that was not that case. Invariably, there were four wires that were showing current regardless of which position the headlight switch was in (some additional wires went hot as you engaged other headlight permutations).

7462113E-B41F-4636-8C9E-9F810C7DA3F7.jpeg


The four that were hot were as follows:

On top part of plug, the red wire second from left read 13.2:

11A7ADC3-83EA-414F-A9E5-6FF51365D8CA.jpeg

581C4270-4458-4FB3-B6A7-95FC23F53F8D.jpeg


On the bottom part of the plug, the red wire first from left read 12.6; the pink wire third from left read 9.3; and the blue wire fourh from left read 9.3:

3702D524-8956-4FF0-984C-B072F6AE1982.jpeg

C251EC32-4D68-4A6B-A6F2-E2042CF56F99.jpeg
 
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91361D03-333F-49A1-8228-DB5A8B853CA5.jpeg

7A410D87-C7C4-4397-9700-D82B3C1FCCCC.jpeg



I know nothing about electrical engineering, but maybe someone might be able to decipher which one of the wires is likely the DRL based on the voltage?
 
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View attachment 3224898
View attachment 3224899


I know nothing about electrical engineering, but maybe someone might be able to decipher which one of the wires is likely the DRL based on the voltage?

Updated thread in the main 200 series forum. Figured this out. Good luck.


7B87015D-26A6-4CDD-A8F6-0C8BFD0FB92C.jpeg
 

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