When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I installed bi-led ACA headlights yesterday, went to set the headlight alignment and immediately realized there was an issue. I’ve contacted the vendor but was looking for some insight in the meantime. The cutoff is wavy with peaks of light instead of a clean cutoff line. Any thoughts on what the issue might be?
At first look, it appears they are pointed too low and I'm wondering if the perhaps the beams are disrupted by the pop-up assembly or front fender line. I'm running the ACA Bi-Xenon kit and I have a noticeable sharp line whereas the driver side is lower than the passenger side.
This is only a guess. LED bulbs can be incorrectly clocked in the housing illuminating an out of frame pattern. Try pulling the bulbs and just check for the correct location in the housings
Good luck
This is only a guess. LED bulbs can be incorrectly clocked in the housing illuminating an out of frame pattern. Try pulling the bulbs and just check for the correct location in the housings
Good luck
I suspected this but the low beam led assembly is entirely sealed. No way for me to check the orientation without cutting the rubber boot open. Unfortunate aspect of the design.
At first look, it appears they are pointed too low and I'm wondering if the perhaps the beams are disrupted by the pop-up assembly or front fender line. I'm running the ACA Bi-Xenon kit and I have a noticeable sharp line whereas the driver side is lower than the passenger side.
I initially thought that was the case too. I adjusted them every which way to no avail. The actual cutoff line is right about where the tape is. Makes me think it’s something internal blocking the beam.
Well hopefully someone can learn from my stupidity. After checking my wiring harness again I realized I had gotten a couple of plugs reversed (on both lights). Corrected that issue and it’s razor sharp now.
Glad you figured this out on your own. I just did this myself and had one side right, one wrong so it was easier to spot. What direction are your high beam LEDs facing? 9 and 3?
Were you able to get the Hi-4 harness to work correctly?
Glad you figured this out on your own. I just did this myself and had one side right, one wrong so it was easier to spot. What direction are your high beam LEDs facing? 9 and 3?
Were you able to get the Hi-4 harness to work correctly?
I haven’t been able to get the driver side high beam to illuminate. The passenger side will function correctly. Are you having issues as well?
My high beams don’t look great at the moment either.
I noticed Sharp Light includes a second relay that is wired in-line with the passenger side light. I’m wondering if that relay is necessary to make the high beams function. It wasn’t included (or offered) from the company I purchased from.
Just wanted to close this thread out for anyone that stumbles across it in the future. A new high beam bulb fixed the issue with both high beams not illuminating. I can only guess my incorrect wiring killed the first one, that or pure coincidence.
A huge shoutout to Cole with Vette Lights for his help. I can’t recommend them enough and will definitely purchase from them in the future. Awesome product and great customer service.
My high beams don’t look great at the moment either.
I noticed Sharp Light includes a second relay that is wired in-line with the passenger side light. I’m wondering if that relay is necessary to make the high beams function. It wasn’t included (or offered) from the company I purchased from.
THat second relay is actually my design. I made and gave George the wiring diagram and instructions for that relay when he was having complaints on the lights not retracting.. It is so that the headlights go down when turning them off without having to flash the brights.
Last edited by Ed Ramberger; Dec 5, 2022 at 10:21 PM.
Thanks Ed, I ran across a thread where that issue was addressed with the Sharp Light kit. Thanks for the confirmation on that relay’s function. 👍🏻
You're welcome. The reason the Sharplight kit had issues was that they are wiring the LED lights directly to the light connector instead of using the OEM bulb plug to power relays that in turn power the bulbs. I think the ACA kits come with the relay harness but Sharplight eliminates them to reduce wiring. The system needs to see continuity to retract - which it does through an incandescent bulb but not through an LED. Without the relays (the relay coil acts as a filament), the headlights won't retract until the brights are flashed (then the continuity needed to trigger retraction is seen across the little bright indicator bulb)
Last edited by Ed Ramberger; Dec 5, 2022 at 10:38 PM.
ACA Headlight Cutoff Issue
