INTERIOR

 

Fox Mustang Interior

Fuel Relay: Under The driver's Seat. Turns Fuel pump when key is activated.

Fuse Panel: Located under the dash to the left. Access panel pulls right off.

Turn Signal Relay: Located to the right to the Fuse Panel. Note: In earlier models hazard flasher was also located here but is now by the glove compartment.

WiperRelay: Controls speed of wiper delay(what an explanation!). It's a brown box under dash left of the steering. About 4 inches long, 1 inch thick, 2 inches wide.
See Photo Below

Hazard Flasher: On fuse box, but attached to it's back, not on the front with the fuses. Later years may have it behind glove box.

Rear Defrost Relay: Under drivers dash, almost behind fuse box to the right(towards radio). See illustration below.

Fan Relay (2.3 Motor): Also called fan control switch, I recently had to find this, couldn't find it until I made a trip to the dealer. It's under the drivers dash, in the center, and is attached by a long (about 4 inch by 1 inch) metal bracket & has a large 8 (or more) wire harness to it. It's brown in color. And if you need to know around $60 from the dealer. It's made by TRW so it's available in parts stores too. Picked one up at AutoZone for $25. Number on relay is: E7ZB-8C609-AA.
Look in 2.3 section for the relay photos

 

Rear Defrost Relay

The first number is the part number, some #'s may differ slightly due to yearly production codes.

Dimensions
about 1-1/2 inches across, 2 inches up/down & 1 inch thick.
Color: Black

It is installed upside-down in the car, with the harness on the top.

 

Wiper Relay

Wiper
Relay
Location

Brown Box to left of arrow