probably the fuse or relay on the fuse block is bad , find and replace the fuse or relay and trunk and fuel door should there may be two separate fuses ,
Inside the alternator.
inside the alternator
INSIDE THE ALTERNATOR
Inside the alternator.
It is located inside of the distributor.
take out inside the car
Inside of the fuel tank.
try from inside the trunk
Mounted on top and inside the fuel tank.
if its under the dash by your feet its the heater core is bad
If it is the Northstar engine which I believe it is, it is inside the motor under the intake manifold.
This is typicall attached to the inside cover of the fuse box