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TCS Transmission wiring question

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Old Oct 12, 2006 | 10:31 PM
  #1  
okinawa86vette's Avatar
okinawa86vette
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From: Las Cruces NM
Default TCS Transmission wiring question

Alright, I don't even want to get into how this circuit was wired when I started looking at it. Let's just say it's not right.

I noticed an orange and a brown wire coming from the switch at the gas pedal. These come out of the firewall through a grommet and go into a bundle that goes along the firewall.

On the pass side, I have an orange wire not connected to anything(I'm assuming it's the one that comes from the pedal switch, but I'm not 100% sure). I also have a brown wire that's hot when the ignition's on. There's also a blue wire, which I don't think has anything to do with this circuit.

At the tranny, I have a black(ground, I imagine) and another orange wire. I can't trace the orange wire coming from the tranny because it goes up and into the depths of the car.

Alright, here's the screwy part. If I disconnect everything, the TCS thing on the tranny doesn't work. It doesn't downshift very well, shifts at very low rpms, etc. If I connect the hot brown wire to the blue wire, it seems as though it's working all the time. It's very quick to downshift, even at light throttle, super hard shifts, etc.

So, how exactly is this thing supposed to be wired up. It seemed so simple when I was day dreaming at work about it, but when I got under the hood, my brain took a dump and nothing made sense anymore.

In my head, the brown wire should be hot going to the switch, then the orange wire simply goes to the tranny. Give it 3/4 or so of throttle, it closes the switch, puting 12v to the tranny and voila, it works.

I'm guessing it would be best to unwrap all of the wires at the firewall and figure out exactly what's going on.

Does anyone have any idea where these wires are routed to and from, physically? I think that ckt was hooked up wrong last time the motor was swapped.


Chris
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Old Oct 13, 2006 | 12:01 AM
  #2  
okinawa86vette's Avatar
okinawa86vette
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Drifting
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From: Las Cruces NM
Default

Nevermind....I'm an idiot. I went back out there, did some continuity tests and voltage tests on the wiring. It all made sense this time around.

The blue and tan wires were wired correctly, although the solenoid for the vacuum stuff is gone, so those wires essentially did nothing. I found an exposed wire that was causing a short, blowing the radio/tcs fuse. Which is what drew me to those wires in the first place. Fixed the short and tested the car with and without the hot tan and blue wires together. Ran the same. I pulled the gas pedal switch and put a piece of hose on the part that the pedal hits since it wasn't closing with the pedal on the floor.

Anyhow, all better now...one thing to cross off the list of random projects....
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