OKAY HERE WE GO I HAVE A NF FAIRLANE 5.0 WHEN I BOUGHT THE CAR THE THERMOS WERE HARD WIRED THRU ONE RELAY AND THERE WERE A POWER WIRFE IN THE 4 RELAY BANK AND THREE TRIGER WIRES GOD KNOWS WHY BUT THAY WERE THERE NOW FANS NOT WORKING AT ALLL SO I WOULD LIKE TO GO BACK TO THE ORIGINAL SETUP IF SOMEONE CAN GIVE ME A HEADS UP WERE TO START SO I CAN GET MY BABY TO WORK AGAIN I HAVE ALL FOUR RELAYS IN AND THAY ARE NOT WORKING NO POWER AT ALL WHEN I TEST THE WIRES NO POWER WHEN I TEST WERE THE RELAYS SIT A COUPLE HAVE POWER A COUPLE DONT HAVE POWER I DONT GET IT IT IS REALLY DOIN MY HEAD IN NEED HELP PLEASE !!!!!!!!!!!!!!!! IF U LIKE U CAN EMAIL ME ON BRETT150706@GMAIL.COM IF U CAN HELP OR RING ME ON 04152424149 PLEASE I NEED HELP

This is very difficult to answer without seeing the setup you have...too may variables. When I did my thermo fans in the EF, i went to the wreckers and removed the whole loom from under the dash right round to the left hand headlight. Surprisingly quick, about 20 min...took about an hour to instal. Worked first time

Yeah... I'm learning to hate EF-EL thermos... my relays are now wired to switches on/under my dash.

I know when I was trying to sort it out I found google will find you the wiring diagrams. Although I swear there must be someone who's job it is to make them look more complicated than they are...