tcc not working

[bonnieclyde100]

i am having trouble getting my tcc to work. i have 1993 350 with my four barrel frankenbody and a 700 r4 with a TCI tcc lockup kit in it . i have the ecm tcc wire hooked to the green wire which i used to have a toggle switch hooked to so i could lock the converter by hand. my pcm is a 16168625 with a modified BJYL $od bin. i have uploaded my bin and adx and xdf so someone can take a look and see what i dont.

[lionelhutz]

This green wire - you used to put power on it with the toggle switch?

[buddrow]

This green wire - you used to put power on it with the toggle switch?

Im dont see a green wire in the schematic. Wiring diagram shows Tan/Black, Lt Blue, and Purple.


Edit: This was found in the 1992 manual.

[bonnieclyde100]

Im dont see a green wire in the schematic. Wiring diagram shows Tan/Black, Lt Blue, and Purple.


Edit: This was found in the 1992 manual.

the green wire is from the TCI wiring harness for the lockup kit. i hooked it to the brown wire from the gm factory harness. the green wire is a wire that you hook a grounded switch to so you can manually lock the converter in 2 , 3, and 4th gear . sorry i didnt explain that better. my problem has to be somewhere in the tunerpro side of it.

[bonnieclyde100]

here is a wiring diagram of how i wired my tcc. any idea on why it is not working? something in tunerpro hopefully.

[sturgillbd]

You may need to use a relay to control the tcc solenoid. The pcm may not be able to sink the current that the solenoid needs to operate. Use pin e10 to break the ground side of the coil for the relay. Look at how GM used a relay on the 7747 and a 700R4. You can use a test light between pin e10 and 12v power to see if the pcm is actually commanding tcc lockup with it disconnected from the transmission. If the light comes on when qualifiers are met, a relay should solve your issue.

Brian