It won't have a relay. Usually it is the switch, or the fan motor that goes bad.
More than likely the blower motor speed resister is shot. This part is available at you local auto parts store.
Should be on top of the starter
Maybe on the top of the starter - follow the + battery cable it will connect to the starter relay (solenoid)
The starter motor is located between the transmission and the engine which engages the starter clutch with the flywheel, which rotates and starts the engine.
The fuel pump relay on a 1991 Subaru Loyale is located on the driver's side of the engine compartment. It is part of a bank of relay switches on the fender wall and right next to the Self Test Connector which is the last location on the far right.
on the right side of the engine firewall on a relay brackt. which one?
Heater blower relay if there is one... There are relays underneathe steering wheel but right next to driver door. And in engine compartment where shock is on drivers side.
In the engine compartment. Center of the firewall behind the engine.
If your standing in front of the car looking at the engine there is a fuse box on the fire wall on the passenger side and the relay is in that below the fuses when you remove cover. The blower motor resistor/power module is under that fuse box on the left hand side of it near the silver A/C tank.
The horn relay on a 1991 Oldsmobile Cutlass Cierra is located on the passenger side firewall inside the engine compartment. It is just to the left of the blower motor assembly.
it's the blower motor
it's bolted to a bracket in front of the motor, between the motor and the fans, slightly to the left.
fuse #5 on the relay panel on firewall left and above blower motor.
Open the bonnet, remove the scuttle cover, wiper motor, and finally blower motor.
faulty blower module. Under hood not far from blower motor
The blower motor is located on the passenger side up under the glove box.
You can find the 1991 Nissan starter motor relay switch in the fuse box. The starter motor relay switch will be in the third column, second from the bottom.