97 Cvan 3.0 w/ac. Rad fans on all time (even w/key off). Scan data shows: fan @0%, proper eng temp, & A/C psi reads 50psi when off. The relay control input from PCM reads full ground to relay. No short found on (LG)wire. (Unplug PCM & ground gone)So pin 73 to ... Login to read more.