Should be under the hood, on the firewall, passenger side, not far from the blower motor.
The blower motor resistor is located under the hood, in the right hand cowl, behind the windshield washer bottle.............
Not sure about the relay, but there is a blower resistor assembly located on the heater case to the right of the blower motor.
To change the blower motor resistor on a 1993 Dodge Dynasty, first disconnect the battery to ensure safety. Locate the blower motor resistor, which is typically found near the blower motor itself, under the dashboard on the passenger side. Remove the electrical connector and unscrew the mounting screws to take out the old resistor. Install the new resistor in reverse order, reconnect the electrical connector, and test the blower settings before reassembling any panels.
The blower resistor assembly is located on the heater case to the right of the blower motor. - Haynes Repair Manual #36071, 1993-2005 Ford Ranger Pick-ups
The blower motor speed resistor may be burned out. The resistor is available from your local auto parts store.
The blower motor resistor on a 1993 Nissan Altima is behind the glove compartment on the passenger side of the vehicle. To access the blower motor resistor, the glove compartment can be removed by lowering the bottom as much as possible and removing it from the hinges.
The blower motor fuse protects the blower motor electrical circuit. The blower motor relay operates only the high speed function of the blower motor. The blower motor speed resistor operates the lower speed functions of the blower motor.
In a 1993 Plymouth Acclaim, the heater blower motor resistor is typically located under the dashboard on the passenger side of the vehicle. It is mounted near the blower motor, often accessed by removing the lower dash panel. You may need to disconnect the wiring harness and remove screws to access the resistor for replacement or inspection.
Resistor pack on blower motor? Fan switch? Low speed relay?
It is in the air conditioner /heater case behind the glovebox.
Under the glove compartment - fixed by two screws
to the left of the blower motor. It's on the left side of the engine compartment