93 3.1 lumina overheating

This Is My Grandfathers Car And I Am Going Up To Fix It Tommorrow. This Model Has 2 Fans .he Ac Fan Works Fine But The Radiator Cooling Fan Is Not Coming On. He Jumpered The Fan And It Worked Fine Then. I Think That The Problem Is The Fan Relay. I Do Not Have A Book On This Car So I Don't Know Where The Relay Is Located On The Car .if Someone Knows Where It Is Please Let Me Know. Also What Is The Best Way To Test It To See If It Is Bad. The Car Has Less Than 100,000 Miles On It I'm Sure .if Their Could Be Something Else Wrong Please Feel Free To Tell. Thanks, Mark

This Is My Grandfathers Car And I Am Going Up To Fix It Tommorrow. This Model Has 2 Fans .he Ac Fan Works Fine But The Radiator Cooling Fan Is Not Coming On. He Jumpered The Fan And It Worked Fine Then. I Think That The Problem Is The Fan Relay. I Do Not Have A Book On This Car So I Don't Know Where The Relay Is Located On The Car .if Someone Knows Where It Is Please Let Me Know. Also What Is The Best Way To Test It To See If It Is Bad. The Car Has Less Than 100,000 Miles On It I'm Sure .if Their Could Be Something Else Wrong Please Feel Free To Tell. Thanks, Mark
should be on the front pass fender. take the cover off it with a test lite test for bat supply than to fan feed side if engine is hot all four wires shoud be hot. if not comin on jump from bat feed to the fan feed wire and it should run if not the sensor on the back head is not workin which is the one that tells the computer to turn on ground to the relay to turn on the fan. sensor is about $20 at az relays run about $14. with fan unplugged try to spin free hand it should spin if not it needs replaced