Jvette73

On a 700r4, can a simple toggle switch be wired into the trans harness to interrupt lockup?

Which wire would you splice the toggle into?

My goal is to have it so one toggle position will not allow lockup at all and the other will allow normal factory programmed lockup function.

vetteoz

Anywhere on the TCC control circuit you like

Wires into / out of the brake switch prob easiest to access under dash;
otherwise, the tan / blk going into the ECM

Jvette73

Excellent! That diagram is very helpful. Thanks!