Recent content by PLRBRR

Adding to my last post... After looking into the Koito LED projectors that Toyota/Lexus uses I'm pretty convinced that the LED driver "blackbox" that I saw in the Toyota wiring diagram is inside the LED headlight housing. Based on this, I think the LED headlights can be powered with the halogen...

I'm not sure that you really need a relay to drive the low beam LEDs from a halogen type low beam wire harness, but one question is whether the LEDs can handle spikes above 12v, which might happen on the regular halogen wiring... so my thought was to be extra careful and have a 12v regulator...

Sorry guys! I haven’t had time to get mine much more than out of the box but I’m going to find time this week to figure out my wiring/relay setup and I’ll post my parts order list and schematic. Then some photos when I get them hooked up so others could build their own harnesses if they want.

Mine were about $750 each side, but you can find them closer to $700 from other dealers plus shipping. If you can find a local dealer that sells parts online you can usually get a good below-list price and then do local pickup and not pay shipping, that's what I did.

Glad I'm not the only one crazy enough to jump into this mod! I've done this sort of thing before too, swapped '05 WRX STi HID headlights into my '05 WRX. That was pretty straightforward, but required a few relays to get 12v, non-DRL-reduced voltage to the HID ballasts. Glad to say they still...

Anyone with a '21 Limited, Nightshade, or TRDPro willing to take some voltages for the wires going into the low beam connector on the headlights? I've been digging through the wiring diagrams and repair manuals on https://techinfo.toyota.com/ and I think I've figured out how the '21 lights...

Don't want to steer you one way or the other in case I'm wrong, but look at which models the headlight applies for. The more expensive one looks like it's applicable to the models which have dual-high and low-led projectors: Nightshade, Limited, and Pro. Not sure what the canadian one is for...

First time using a quote so hope this works... Looking at the wire diagram on Toyota's tech website, it looks like they're no longer using PWM to reduce brightness of the high beams when in DRL mode. Instead, they're just running the two bulbs in series which cuts the voltage in half and...