Unsynchronized Turn Signals with new Luxx Headlights

• Hello, I had the newer luxx alpha Rex headlights for Tacoma and just realized that they are not synced with my sequential aftermarket turn signals. Strangely enough, they are synced when the car is in accessory mode(see video) but when the car is on, the are not synced( other video). This happens for both turn signals and hazards. I also found that when I plugged in the little wire to change the headlights DRLs to amber, the headlights are not synced but when it’s unplugged, the headlights are synced with the turn signals? Please let me know if there is something I can do like add a relay or change fuse to be able to have my DRL amber and synced turn signals. Thank you.
• Car on:
  https://drive.google.com/file/d/1s2HocJVlBK-WzjuKyLaJZ68zr0KDkgPW/view?usp=drivesdk
  
• Car off in accessory mode
• https://drive.google.com/file/d/1DGfuVIev4DM1-NZjgxXT7fhA-HKjV6su/view?usp=drivesdk
  

 

It's not clear what the issue is in your videos. In either example your headlights are not on, so what is the real issue?

 

The turn signal is not in sync with the mirror turn signal. This has nothing to do with the headlight lows and highs. I put the amber DRL on the luxx exclusive headlights. Ever since I plugged in the amber drl in the headlight housing they have been not synced.

 

That is the main issue with all of alpharex headlights. There is no fixing on that part unless you switch it to white DRL lights.

 

The headlights are most likely using the turn signal to break the circuit of the amber light. This is why it would do it while the DRL is amber, but not white.
Are the alpha Luxx use a fuse tap to power the DRL?

 

Will the harness provided fix this problem? I didn’t install it. It hooks up to my battery and a tap a fuse but I didn’t see the point of it. Said it was for something with the DRLS but I had no problem so I didn’t install it.

 

I don’t think it will. That is most likely for use with the SR/SR5 is my guess.
I’ll happily try to figure this out with you if you don’t mind answering a few questions:

Have you compared the Alpha Luxx to the rear turn signals? I’d like to verify it is those that are out of sync (though I am 99% sure it is).

You said it does the out-of-phase blinking when the car is on. Is this true even if you set the headlight stalk switch to “off”? Assuming you don’t have a Canadian truck and have that option.

 

Taillights are in sync (I have alpharex taillights as well). When the DRLs are turned off and I turn on the turn signals, they are in sync. Whenever the truck DRLS are on, they are out of sync

 

Ok. So without being able to get my hands on them to test myself, I am pretty sure my initial thoughts were right. The headlight basically takes the positive pulse of the turn signal to disrupt the constant of the amber signal (the DRL). You could get around this by adding another relay in the mix. I’d have to sit down and figure how to do it (if it’s possible to do) where they remain in phase when the DRL isn’t on, but I think it’s doable. Hit me up tomorrow and remind me? I’ll have some time at work most likely.

 

@alancrompton One more question: If the low beams are on, do these still flash out of sync?

 

Yes. The headlights have to be in DRL off mode for them to work in sync. Thanks for all your help.

 

Technically the DRL is off when the low beams are on. So parking lights affect it too. But I think we can work with that

 

@alancrompton
Okay, finally got some time to think this one through. Assuming you didn't want to tap the turn signals at the stalk switch, the best solutions I could come up with would be to use some timers. I use these in the SR LED conversions, and they can do some really cool stuff. One of those cool things will be a "reverse" function. So it acts like a regular relay, but will reverse the phase, so that should correct the behavior of the turn signal. You could combine that with a relay so it will only do this when the DRL and parking lights are on. That would be the bottom drawing (sorry for my MS paint masterpiece here )

The top drawing is how to do it without that little timer. It would need 3 relays and a capacitor as well, basically making a switchback controller to only supply power to the reverse phase turn while the turn signal is on.

I know I suck at explaining things, so sorry about that.

Both use diodes to combine the turns, but its really more so the relay doesn't get back fed and stick open or closed. I could make a set for you, all plug and play, but neither would be cheap just because of the parts involved unfortunately.

 

Almost forgot: the timers Multi-Functional 3V-18V Time Delay Relay | Timers.shop

 

How much would you charge for a plug and play harness

 

Let me look into it tomorrow. Off the top of my head I’d say in the $150 range. Most of the cost is going to be in the timers and relays

 

@alancrompton So, I was thinking about this again for some reason. I think a better (and less expensive) solution would be to use a Curt 2-to-3 trailer wire adapter. @daveeasa and I played with them to see if they could be used for adapting SR DRL/turn for OEM LED headlights. They technically could have been, but one of the side effects of it was the turn signals were 180 out of phase. Which is what you actually need. The only real issue using it would be that your headlight turn signals might be out of phase when the DRL is turned off though. But might be worth looking into? I think I still have one lying around, so in another month when I remember this again for some weird reason, I will perhaps look into it

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