LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

How do you Enable The DRL (day time running lights)?

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Old 07-29-10, 02:49 AM
  #16  
PureDrifter
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not sure how the canadian LS DRL works but in the US models its basically a 50% or less powered HIGH beam, leaves the HIDs off
Old 07-29-10, 03:37 AM
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skperformance
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Same thing , my DRL's work at 1/2 power like most if not all that use the high beams.
The circuit is a bit different as I have been studying mine for 3 days now .
Old 07-29-10, 06:27 AM
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lexuslspro
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Originally Posted by skperformance
Agreed Canadian tire might be a validate source to get it inspected but they have absolute morons working there.
For my 98 LS the DRL relay is under the drivers side headlight beside the 2 fan relays . The headlight has to be removed to access it.
Also my "lights on" indicator only comes on when I turn atleast the parking lights on , the DRL's have no indicator .
The main differences of the Canadian spec headlights is all are HID and they have washers . Which adds a diode to activate the washers only when the headlights are on. How do I know , I just blew my diode and it has no part number to order after being on the phone for an hour with Toyota Canada trying to get one.

A simple wiring relay can be made so the car turns on the headlights on full when the car is started and the parking brake is off.
Using those add a DRL kits are dicey as they don;t work that great at 1/2 the voltage all of the time. Better to have it activate your headlights fully on instead.
Mine is a 1998 US spec Ls400. I think running the headlights at half power would be a fine way to do it. The question really is how do I make this happen? Should I buy a kit? If anyone knows please help me..

Also according to Kansas "The U.S. specification 1998 LS400 did not have DRL ... it was added in 1999."

skperformance did you do the DRL on your ls400 by yourself?
Old 07-29-10, 01:09 PM
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if its HID you can't run it at half power as there wont be enough to light the bulbs
Old 07-29-10, 01:40 PM
  #20  
lexuslspro
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Originally Posted by PureDrifter
if its HID you can't run it at half power as there wont be enough to light the bulbs
I don't believe I have HIDs. My lights are not blue...that's for sure...just a nice bright white.

I just spoke with the parts dept at a Lexus stealer. They have told me that I have regular headlights..NO HIDs.
Attached Thumbnails How do you Enable The DRL (day time running lights)?-81598fj_20.jpeg  

Last edited by lexuslspro; 07-29-10 at 02:15 PM. Reason: I have regular headlights
Old 07-29-10, 03:31 PM
  #21  
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if you're not sure just look at the lens of your headlight, if it says "D2R" anywhere, it's HID
Old 07-29-10, 04:52 PM
  #22  
lexuslspro
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Thanks PD. I just checked. Those letters are no where to be found. I also neglected to mention the dealer used my VIN number to come to the conclusion that I don't have HIDs.

Thanks for that!
Old 08-03-10, 02:37 PM
  #23  
skperformance
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You can get a relay kit , add it to your fogs instead and use them as day time running lights . You could even make them hid's instead.
Simple as using a hot wire once the car is started and about $250.
Old 08-06-10, 07:24 AM
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qewani1
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Try this
https://www.clublexus.com/forums/ls4...-in-ucf20.html
enable by reconnecting those wires if they are cut.
Old 08-06-10, 07:26 AM
  #25  
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We have 99, 2000 LS400 model with US spec. which have DRL , no idea about 98.
Old 01-29-13, 10:05 PM
  #26  
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Originally Posted by lexuslspro
Most people would take offense at your statement...I however agree with you 110%..lol

Canada has some of the most stupid rules around. Sorry Canada

This is just another one of them.
Well having experienced 3 collisions from people turning left in front of me at the last moment, during the day with no headlights of mine on, I figure this is a pretty good law. Had I had headlights on I surely would have avoided at least 1 or 2 of those accidents--perhaps all 3.
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