Lumina cooling and air conditioning

[Dirty Doug]

I have a 97 lumina with 3.1L. My problems started when I noticed it was running hotter than usual.I found out the cooling fans were not running. To check out problem and do some maintenance I drained system, replaced rad hoses, thermostat, temperture sensor and bleed system. I also checked operation of fan relays1,2 and3. No change. When I tried to turn on air conditioning- nothing. I then jumpered out the low pressure sensor on the air conditioner lines and both cooling fans start but the clutch on compressor won't pull in. I ran a hot wire to the clutch and it pulls in so it must be good.I swapped the air cond. relay with the one for the fuel pump (same part no.)and no change.Every thing seems to be pointing to the PCM. This morning I bought a OBD2 code reader and there are no codes stored. Is there anything I missed, I'm at a loss.