I do believe it is behind the glove box I am on my 3rd Toronado 2 87 and now 88
The 1994 Toyota pickup heater relay location can be found in the fuse block number 3. The fuse block is located above the glove box and can be seen when the glove box is removed.
The relay block is inside the car, passenger side on kick panel up by the glove box. Horn relay will be the square block in a row of 6, closest to the firewall.
behind the glove box.
Behind glove box in dash
Look in the back of the glove compartment.
Passenger side behind the glove box
The Interior Fuse/ Relay Panel is located under the Right side of the Dash, below the Glove box (remove lower sound panel to access). on some Models, this Fuse/ Relay Panel is located in the Right side of the Console.
It is behind the glove box
Relay is in underhood fuse block marked A trans
The horn relay on a 2001 Ford Expedition is located on the RPO Relay Block 1. You can find this relay block under the dash just above the passenger-side air bag.
Remove the glove compartment(just push in on tabs on side) relay is right there just unplug harness and replace
on firewall passenger side if you have a big block (beside kickdown relay if you have a 400 tranny)