fuel pump circuit LT1

[JD1964]

I need to make sure I understand the PCM's function in controlling the cooling fan relays and the fuel pump relay.

In looking at the fuel pump relay schematic and I see that the fuel pump relay triggering function has one of the wires going directly to ground such as in this schematic > fuel pump relay trigger grounded

In looking at the cooling fan relay schematic I see that the triggering function does not have a wire running to ground but instead to ignition, such as in this schematic > fan relay trigger to ignition


So, am I correct in assuming that the pcm pin A7 (fuel pump relay control) shoots a 12v signal to the FP relay for triggering

....and, the pcm pins A10 & A11 (fan relay controls) create a ground for triggering the cooling fan relays?

[JD1964]

I actually found my answer in the text near the bottom of this page.

https://lt1swap.com/wiringharness.htm

Yes, pcm trigger for FP relay is a 12v +, and pcm triggers for cooling fan relays are negative ground (-)