e-Bay.
 

Though I haven't got it yet, as it needs to fly overseas to get to me.

Buy a used one, they're usually about 10 USD$.

check ebay pal. people selling those or parting out cars will sell them for cheap. like $10 usd

Heh!
 

Lol bro, your reply was nearly identical to mine.. probably you didn't see it as mine was on 2nd page. ;)

i saw it, i just wanted to make sure he knows they are cheaper used and can get em over ebay. not trying to take your credit ;)

sorry to bring a thread back from the dead, but I just got a supra and am having the same exact problem, does anyone have details on this bypass?


Thanks

now im really raising the dead with this thread, but im also curious about the bypass mentioned here...

Well, I had same problem with the taillights (rear hatch leak). I had water get into Tailight Failure Sensor and also corroded my taililights. I also took off my wing and plugged the wholes but, I replaced the third light with the bulb and threw some tape on it so the warning light would shut up. Anywho

I bought a used Tail Failure Sensor on ebay (**be sure you match the part numbers from your original one**) threw that on, yet still tail lights where not operating correctly. (i also checked all my relays and switches, which is a good idea).

What I finally did that fixed it was: I ripped all the tail lights out, got new pigtails, new bulbs, and some di-electric grease. I completely dissasembled it all cleaned and re-wired with new everything, minus the bulb holders (idk the proper name for them) i just cleaned them.

Threw some di-electric grease on the bulbs and new pigtails, installed and I was good to go everything works fine..If your new to wiring you might need some help..but thier is some helpful directions from supramania : How-To:Repair tail lights - SupraMania

Dont know what path you will take but this is what worked for me

i have an 87' supra.....and i had the same problem, first i checked the bulbs, bulbs were good, then i checked the fuse, the fuse was good, then i checked the "yellow box" you were talking about, i opened it up and found a burnt circuit( the box is under the driver's tailight ), so i replaced it and the brakes work perfect now........i got it on ebay LAMP FAILURE TOYOTA model no. 89373-32120, its cheap and easy to fix, because the toyota dealer was charging me 280 over here in jersey..........hope it helped you

well i checked my yellow box (lamp failure sensor), and it looked okay, but my lamp terminals were super corroded, and i had a semi-loose ground wire. cleaned everything and fixed the ground and it works fine now.