H1 LED headlights not working properly

Tiny
BRAD GROSS
  • MEMBER
  • 2005 ACURA RSX
  • 2.0L
  • 4 CYL
  • 2WD
  • MANUAL
  • 120,000 MILES
I already had LED's, the passenger side was dim so I ordered a new set and put one in the passenger side. Worked great for about 30-45 seconds then flickered for a few seconds and went dim. So I took the second one out and the same thing happened. When I take it out of the actual headlight and squeeze the LED I get them to flicker and get brighter until I let go. Anyone have an idea? I'm not much of an electric guy so i'm thinking maybe a bad ground? Also i'm assuming the old LED wasn't the issue. Because it also does the same under pressure.

I have not taken anything apart yet to look. Figured I would post quick to see if anyone might know beforehand.
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Monday, July 6th, 2020 AT 7:29 PM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 12,883 POSTS
Are these replacement light assemblies that use a single bulb to replace the individual high and low bulbs the stock system used or do you still have a high and a low beam bulb? The OEM system only uses the ground wire for the low beam bulb with the high beam being grounded through the multiplex unit. Do your LED's use 4 wires to connect to the factory system? If so are both the high and low beams dim or is it just the low beam?
If both then I would check fuse 17 for good contact and swap headlight relay one and two and see if the problem switches sides. If it does the relay is bad.
If the issue is only the low beam being dim then it could be a bad ground, it is the black wire and it goes to a ground point below the light behind the bumper.
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Tuesday, July 7th, 2020 AT 2:54 AM
Tiny
BRAD GROSS
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  • 2 POSTS
The issue is only the low beam. Each light is a two wire.
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Tuesday, July 7th, 2020 AT 4:41 AM
Tiny
STEVE W.
  • MECHANIC
  • 12,883 POSTS
Okay, then take a look at the ground wires to both, if one is failing they both may be.
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Tuesday, July 7th, 2020 AT 6:42 AM

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