cant figure out how to wire my tcc to a toggle and its driving me nuts


ive tryed connecting the positive and neg every which way to the trans connector and theres only one way i get any power,and it imideiately pop the fuse,any idea why.and how to fix it.

 

anyone? i put 12volts to pin (a) thru a fuse block,a and grounded pin d and when i plug a fuse in it ovr heats the wires and pops the fuse??

 

Find the short to ground in that circuit.

On GM cars, the TCC circuit is on the same fuse as several other things.

TCC wiring against an exhaust manifold happens sometimes when it's not hooked up.

 

i ran new wires,and connected them stright to the plug on trans ive got power coming off the nss(just for testing),going thru an inline fuse,into the trans then the ground ran to the bolts on the shifter.really need a quick response im going to bew finishing this in the dark,have to have it back together by tommrrow

 

bump...anyone

 

gave up...just not gonna have lock up for now

 

Why run new wires? The TCC can be locked by grounding pin F of the ALDL unless the car is modified unnecessarily. I always run an ECM and haven't done that but a few people have: https://www.thirdgen.org/forums/tran...c-lock-up.html

Check your wiring against this: http://bangshift.com/forum/showthrea...-lockup-wiring He left out the connection to D on his second attempt; had a fuse popping issue etc.

 

i have no factory computer wiring,but i bought the weatherpack connector from a jy,an inline fuse holder put 12 volts to pin a(purple i belive)and ground to d(tan with stripe i belive) and it keeps blowing fuses every single time i plug one in

 

What size fuse are you using - should be 10-15A. Too small and it will pop as the solenoid pulls in.

Also, just try it with +12 on pin A only, and leave D alone. The other side of the solenoid may be connected to ground internally already, and D might be a switched output for 4th etc. Internal wiring varied over the years / applications.

If the fuse survives, get under it and see if you can hear the solenoid click in. It will be real soft, but audible.

Might also be a shorted solenoid. I had the opposite problem with mine when I was playing with it - solenoid was open circuit. Got a new one plus loom, plus connector, from the jy.

Also - you got the right pins? A is at the front, facing out. D is at the rear, facing out.

 

i was using a 25 amp fuse,ill try to only hook pin a and see if it works,i wasnt exactly sure how loud the tcc would be,i was picturing it being as loud as like a relay

 

im sure i have the right pins.there labled

 

Will not be that loud when it clicks in, guess it gets muffled by the tranny. I don't think you'll hear it in the cabin - need to be underneath, turn the radio off and shut your friends up. Actually come to think of it, I had the pan off when I was working on mine and it was still real quiet.

That's a sizeable fuse you're blowing, must be a hard short. Do you have a multimeter - check the coil resistance across A-D - can't remember exactly what it should be but I'd guess about 20-30 ohms, like a relay coil. If it's zero, maybe the solenoid's shot.

 

im feeding it power with the car off thru the nss(always live)so it should click with the car off.ill check ther resistance next thanks