Very explanatory, kudos. Thanks

@vencilldavid

7 ай бұрын

Thanks for commenting! I’m just happy it’s helped a few people out.

How do i do this with mine. I'm using the factory harness, and ecm that came with my engine. DBW. My truck is a 1986 C20 it also came with cruise control so my brake switch is 2 sided. Cause I'm trying to figure out how to wire this with the factory harness that my engine came with

@vencilldavid

4 ай бұрын

What model and year are your engine? Are you running the 4l60e?

Hello. I have issues with my car stalling in reverse and drive. I have a 90 silverado and I used my existing brake switch. I have the purple wire coming from the TCM I believe. It says that wire need to go to 12v when brakes are applied. Am I suppose to reword in this brake switch instead?

@vencilldavid

6 ай бұрын

The stalling could be a few different things. Even if the TCC switch is wired wrong or not wired at all; it wouldn’t cause the engine to stall. You are correct, the purple wired goes from the TCC switch to the PCM; then the red wire goes from the switch to a keyed on power source (fused) the brake switch should be the same; it should have four or five (if equipped with power steering) coming off the switch. Did you swap a newer engine out onto your Silverado?