boostd4

Hi,

My new-to-me SC300 has Supra seats installed and the seatbelt light is on in the dash.

I ALWAYS WEAR MY SEATBELT. In fact, I feel naked in the car if it's not on.

That being said, the PO ran some jumper wires from the Supra seat's wiring harness into the SC's body harness seat plug but the light is still on in the dash even when the belt is plugged in.

I'm guessing he connected the wrong wires. I believe I can just jumper the body harness side so the car thinks the belt is plugged in all the time, but I don't have a wiring diagram. Does anyone know which terminals to jump for this?

Thanks!!!!

-Adam

joe diego

iTrader: (3)

I would like to know this as well. Anyone? Anyone?

boostd4

I looked through the .pdf service manual and still couldn't find it. They refer to a two pin plug under the seat on the SC300, but I think my supra seat has the seatbelt and power seat functions tied to one junction.

After reading how easy it is to take the cluster out, I'll probably just yank the bulb in the dash. I'd rather do it the right way, but whatever. I'm not so dumb to need a dash light to tell me that I'm not wearing my seatbelt.

StiCk3

iTrader: (5)

i had this issue a while back and had it resolved with some soldering. Not happy about it, but it keeps the light off.

I need to look at the diagram tomorrow, but it has to do with splicing in the seatbelt harness with the floor harness. Took me about half an hour of soldering to do.

KahnBB6

iTrader: (5)

Sorry to resurrect an old thread but after searching everywhere the TT seat wiring issue still hasn't been answered.

I've had mine in for a few weeks now and that dash light is getting annoying. I've held off on selling my stock seats until I could figure out where the wiring is going to. The problem is that the SC seatbelt connector hooks into the main harness of the SC seat and not directly into the main plug. I want to actually get the circuit working properly again.

What I've found is that the seat-side seatbelt connector has two colored wires: Black-with-Blue-Stripe and White-with-Black-Stripe. Those are lost into the seat's main harness.

On the main connector I again find an identically sized Black-with-Blue-Stripe wire but only a larger White-with-Black-Stripe.

I'm tempted to guess that these may be the correct wires but I can't be sure. Has anyone looked into these as a possibility to solving the wiring dilemma?

topdog849

iTrader: (1)

probably just easier to open the dash and take out the bulb. or put a piece of black tape under the dash display

KahnBB6

iTrader: (5)

Of course I could do that but I'd really like to figure out the wiring and get the buckle wired up properly. I know a few people have done it but so far no one has mentioned how they did it. Taking out the bulb is very easy but it's a last resort.

topdog849

iTrader: (1)

lol work smarter not harder

KahnBB6

iTrader: (5)

:/ I can take the bulb out any time but that doesn't solve the wiring issue.

KahnBB6

iTrader: (5)

So... I am still interested to know if anyone has solved this issue. It's only two wires and with as long as these cars have been around, someone must have done it.

The main negative lead on the floor harness is easy. It's figuring out which is the other part of the circuit that needs to be connected that is still unidentified.

KahnBB6

iTrader: (5)

With StiCk3's help I've solved it. No lightbulb removal required. Will plug and play like OEM. Very easy.

DIY with pictures and a short video to follow.

Edit: Here is the DIY thread with pictures. It works like OEM now.

https://www.clublexus.com/forums/sc-...ml#post6748879