Anyone shed some light on the A/C low pressure switch? The harness I have for it uses a 3 pin connector on it. All of the low pressure cylcling switches I have seen (on other vehicles) use a two wires.

I am doing a swap into a '01 Jeep Wrangler and this is about the last thing that is kicking my butt. Any help would be appreciated.

 

I guess I should mention that the swtich in question is on the LS1 side of the harness.

 

I believe a 3-wire would be a 'trinary switch' which operates an electric fan along with the compressor. A two-wire would be a 'binary switch' and only operates the compressor.

 

For a stock 2000 Camaro

pin a - sensor ground
pin b - 5v reference
pin c - pressure sensor signal