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Need to swap my OEM HID's for halogens

Tiny
JBRISH
  • MEMBER
  • 2001 LEXUS RX 300
  • 3.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 50,000 MILES
Hello,

Because HID assemblies are too expensive where I live. If I were to remove the old ballasts, there would be two wires each side. I believe one is a control wire and the other is 12V. How do I hook up wiring for both high and low halogen beams? Do I need relays in this case?
Thanks!
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Wednesday, January 15th, 2020 AT 6:38 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

I have included the headlight wiring diagrams so you can see how the system works and which wires to connect to your HID system.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Thursday, January 16th, 2020 AT 10:41 AM
Tiny
JBRISH
  • MEMBER
  • 2 POSTS
Hello, thank you for the diagrams. Is the headlight 'ECU' for HID lights refer to the ballasts?
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Thursday, January 16th, 2020 AT 2:53 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I believe so. Do you have a picture of the ballasts?
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Saturday, January 18th, 2020 AT 9:55 AM

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