Can someone tell where the A/C Clutch relay is located? My A/C isn't blowing cold air. When I connect 12V directly from battery the clutch engages.

 

Welcome to the forum! Compressor clutch relay is R11 in the engine compartment.

I'd suggest troubleshooting in the following order:
1. Is there the correct amount of refrigerant in the system? There is a high/low pressure switch that will prevent the clutch from engaging if the refrigerant is too low (or too high - but that's probably not the case here).
2. If there is the correct amount of refrigerant, try bypassing the pressure switch - it plugs in near the receiver/dryer, which is behind the grill. Closed circuit = 12V to the compressor clutch via the relay.

Once those are working, then you just need the ECU to send a signal to the clutch, and the clutch to engage via the relay. I don't think issues with the relay are common. Usually there's a leak.

 

mine never disengages and disco starts to run warm and drain battery.. could that be the relay?