Hi grifsa,
The cooling fan relay must have 1 powered terminal at all times and another when ignition switch is turned ON. If constant power is not available, you need to check underhood
Fuse # 57 ( 20A ) Radiator fan
Fuse # 58 ( 20A ) Condenser fan.
If igniton switch on power is not available, check underdash
Fuse # 3 (7.5 A )
Fuse # 6 ( 15 A )
If all ok, check the radiator fan control module (behind glove box) Try bridging the fan switch with igniton swtch turned to ON.