ACME switchbacks

I purchased a set of ACME switchbacks with the morimoto HD resistors from the retrofit source and installed them this morning. I drive a 2017 access cab SR. I used my fluke multimeter to check everything before installing and all looked good... until I drove the truck. Sitting in my shop with the ignition on but truck not running the white LED's illuminated when the light stalk was on the parking light setting. Obviously the DRL setting didn't work because @moe2o4 poited out to me the truck won't turn the DRL's on until a sequence of events takes place. For me it's to take the truck out of park. Anywho the turn signals didn't hyper flash and once the turn signals stopped the lights switched back to white LED. When I pulled out of the shop I stopped in front of the office window and noticed that the lights were back to amber... after playing with the lights for a minute I see that whenever I fire the truck up and put it into drive the lights will be white for ahout 10 seconds and then they switch to amber and won't ever go back white. Pretty unhappy with my purchase so far... didn't know if anybody else has used ACME switchbacks in an SR with similar issues? Didn't want to spend the $ on the VLEDS but now I think it would have been worth it as I just have glorified stock amber lights

 

Just found buried on the retrofit source's webpage under another switchback bulb (3157) that they say "There is known issues with how the factory wiring functions using the ACME switchback bulbs. Because of these known issues, we cannot recommend them for Ford or Tacoma / Tundra vehicles at this time." So my fault for not researching deep enough on these bulbs... there went $50!

 

Only 2gen Tacomas have an issue with wiring due to CK base bulbs.
Our trucks use 7440/7443 bulbs depending on trim.

 

Glad you got it figured out. I was about to give you some grief for another "I wired up some shit and now my truck's broke" threads.

G.

 

I purchased the 7443 bulbs but they do not function right on some "clicks" of the light stalk. When on DRL they are always amber, I found out that they are the white LED when the headlights are on as well, so that's a small plus. Little annoying but again my fault for not researching well enough before purchase. Retrofit source just didn't have the disclaimer on the 7443 bulbs when I purchased so I blindly went with them

 

SR and SR5, if originally equipped with DRLs have a dual Filament bulb that use the high wattage filiment for the DRLs, when replaced with switchbacks will only run Amber until headlights are on. (The amber is the higher wattage of the two circuits)

Go into the radio menu, go to setup, vehicle, light settings, and disable DRLs.
They will now illuminate white with the parking lights, and headlights, then flash amber, then back to white when the turn signals cancel.
Setting the stalk to DRL mode does nothing anymore, but switch up to parking lights and you’ll get the white running light you’re looking for.


Forgive the snowy gas pump photos from last January when I realized this trick. Lol

 

That's awesome that you found that trick! I was messing with my truck tonight and tried to find those settings but I believe with my truck being bottom of the barrel trim I don't have the right head unit. If I remember correctly the SR has the plain "entune" while the SR5 has the "entune audio plus"

 

damn, that sucks they eliminate that feature from the SR's...i forget if the scan tool was another option for disabling them...

 

Yep! A few things bug me about the SR but I have been able to fix them myself up to this point (cruise control, intermittent wipers, etc.)! I have started to look into apps/OBD2 readers that allow you to customize the truck such as Carista.

This thread (post #4) shows a list of what they claim can be adjusted.. https://www.tacomaworld.com/threads/carista.457895/

don't see why it wouldn't work on my truck?