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lexpert
lexpert, Lexus Master tech
Category: Lexus
Satisfied Customers: 2100
Experience:  Master Certified with lexus, 8 years experience with Lexus
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I have a 2000 Lexus LS400 with HID headlights that are

Customer Question

I have a 2000 Lexus LS400 with HID headlights that are operating dimmer than usual. I replaced both bulbs and there is no difference at all of brightness.
Submitted: 1 month ago.
Category: Lexus
Customer: replied 1 month ago.
Need assistance
Expert:  Chad Farhat replied 1 month ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Expert:  Chad Farhat replied 1 month ago.

hey how are you

most likley the hid control module

but first lets see if there is no drain on circuit ,wich is common wires touhin in the harness

Battery Drainage Test

1- Voltmeter
2- settings on voltmeter will be on milli amps.
3- go across all the fuses in the car and see which one is reading higher than 0.3 to 0.5 milli amps
4- the fuse drawing more than 0.5 miili amps ,will be the suspected circuit that needs inspection for the drainage.

Please let me know

Thank You

Chad Farhat

ASE Certified Technician