obs swap with l86 and 8speed trans

[Rtex15]

dont know if anyone can help me,,, its a 95 c1500, with l86 cam 8speed, stall, im having issues with ecm,tcm not seen brakes applied, installed corvette 3 wire brake switch using pins 68,48,47, also tried a resitor from pin 57 tcc to pin 48,, dont know if i need the body controller for it work,, i havent seen anything on the ecm side or tcm side in hp tuners

[vannatta20]

Pin 57 needs 12 bolts applied with brake. If it is still being weird make sure you do this test with engine running. The last fix would be to do a pull down resistor incase the circuit is not pulling down to ground. I love my obs gen v swap!