suzuka_blue_s2k

I have a 2006 S/C S2000 with flashpro 55,000 miles and need help tracking down the problem with my A/C (which has not been modified).

All climate control functions work except when the A/C button is pressed the light comes on but the compressor clutch does not kick on.
I've checked the under dash fuse and replaced the under hood relay but no dice.
I used a wire to jump the connectors where the relay is hooked up per the service manual and the compressor clutch kicks on and a/c blows cold.

Soooo I'm thinking there may be a problem between the climate control A/C button and communication with the ECU?? Don't know what to do from here? What do you guys recommend I do next??

AZfury

when you turn the ac button on do the fans kick on?

suzuka_blue_s2k

Fans do not come on when the button is pressed.

AZfury

according to the service manual, you will have to troubleshoot the ac pressure switch circuit...

Disconnect the A/C pressure switch 2P connector.
Turn the ignition switch to ON
Measure the voltage between A/C pressure switch 2P connector terminal No. 2(blue/red wire) and body ground, there should be atleast 5volts

let me know

after that measure continuity across the switch, if you have continuity you might want to try a new pressure switch

suzuka_blue_s2k

I will do that when I get home from work...also now that you had mentioned the fans...the service manual says check ground g201. Where is that ground point?

AZfury

if your standing in front of the car with the hood open its on your left where the headlight is, you cant miss it, theres a group of ground wires going to it

suzuka_blue_s2k

It was a loose connection on the pressure switch!! Thank you for the help!

AZfury

Nice! Glad you found the problem!

G2KS2K

I have the same problem, can you say exactly where is the switch located???

suzuka_blue_s2k

It's under the center plastic trim in front of the radiator.