A/C, Cruise Prob 90 legacy

[jchipper]

Hello people,

I've got a problem.... my legacy didn't have A/C or Cruise, so I got a 94 legacy, and swapped all the A/C and Cruise parts, everything matched up and bolted in but the only thing that didn't is my wiring harness on my 90 legacy has 3 wires that go to the compressor and the compressor off the 94 only had one yellow with green tracer, so I cut off the other two wires and connected that one yellow/green wire and it dosn't work and I have been chasing wires all morning and trying to figure this all out and it dosn't work, right now the A/C is more important then the cruise but neither of them are working... :S any suggestions?...

I should also mention that when I turn the key on there are about a million relays that click on and off and the cooling fan also comes on and off and on and off even the fuel pump is clicking on and off everything seems to be clicking on and off but when I start it the clicking stops :S

[jchipper]

Ok Thanks to Legacycentral I found and disconnected the Diagnostic wire and lo and behold all the clicking went away... :D ok but I still have the A/C no workie prob... any suggestions?

[Legacy777]

Did you swap over the a/c relay?

The connector shouldn't matter. I believe there was only one wire coming from the ECU anyway.

The other thing you should check is whether the pins for the AC request is at the ECU. I've got the electrical diagrams for the 90 legacy on my server. I'd suggest looking over them to see if you can find something that you didn't swap.

http://www.main.experiencetherave.com/s ... agrams.zip

[jchipper]

Wow Thanks soo much for that link! and after some searching I found this http://bbs.legacycentral.org/viewtopic.php?t=14485 AWEOSME! Thanks sooo much they are going to be so much help!

Yes i did swap the A/C Relay gonna study that diagram and give it a go, I'll keep ya'll posted

[Legacy777]

welcome.