The fuse box in a Toyota Corolla is located to the left of the steering wheel behind the coin tray. Pull up and out on the coin tray to remove it.
Make sure the control panel is working properly. If the climate controls do not work at all, then there is a problem with the control panel.
Find the control panel by prying off the top instrument panel around the air conditioning temperature controls. Press the two fitting tabs in toward one another to release the heater control assembly.
Find the blower motor easily in a Toyota Corolla. If the air doesn’t increase and decrease with the fan controls, than there is a problem with the blower. Unscrew and remove the glove box assembly. The blower motor is directly behind the glove box. Unplug the electrical connection, unscrew it and remove it.