Need to know what number the blower motor fuse is and where it is ,

Did you check the proper fuses for voltage? Some fuses are hot all the time, some go hot with the key on. Even if fuses are good, if no voltage the circuit is still dead. I guess your talking about the blower motor? Can you hear it running? I don't know if you auto hvac or manual hvac? I don't know if your talking about front or rear blower motor?
Get at the blower motor, if two wire connector, that should be voltage and ground. Turn on the hvac controls, check for voltage and ground at the blower motor connector. If good voltage and ground with no blower action, suspect the blower motor.

It is possible to use jumper wires from the battery for voltage and ground to blower motor connector, just for testing to see if blower motor will run, use an inline fuse, just in case.
If you want wiring diagram, I need more info.

Hi Victor, I'm glad to help!
First Victor, let's make sure its not the blower motor. Run power and ground from the battery to the blower motor and see if it works, if it doesn't replace the motor. If it does work. NOTE: Most vehicles, when the blower motor quits works its because the blower resister is bad. The fuse that powers the motor is usually a 30 amp fuse, on some vehicles its under the hood on others its in the fuse box inside the vehicle. Before going through all this first check power and ground at the blower motor connector to see if your loosing POWER or GROUND. Because you need to know which one your loosing. BUT, if I were working on it and knowing what I know about blower motors not working I'd replace the BLOWER RESISTER first. Hope this helps and have an awesome day Vivtor.

Yes there is but you can use a test light at blower motor. Simple power and ground test. If test is good replace motor. If no ground replace your resistor

Have you actually tested any of the fuses or relays for power ?
Fuse number 2 is hot from the key switch and powers the blower relay. Fuse number 12 is a 40amp fuse that gets power from the battery and powers the blower motor thru the relay.
Are both fuses hot with the key on ?

There are 2 places that you can look at. In the fuse panel located inside the vehicle in the number 3 position (see picture below) is the fuse for the blower motor relay coil & in the number 3 position is the blower motor relay itself. This should be in your owners manual if you have one. If you don't have one and need a copy, you can email me at [email protected] with your make, model, year and what you need and I will be happy to email you a copy. don't worry no cost to you. Anyway, I hope this helps and good luck.

The blower motor can be tested by removing the lead to it and seeing if it has 12 Volts by observing if the 'test light' lights up when the dash controls indicate that the blower motor should be operational.

One can test the fuses by using a 'fuse tester' available from Walmart or an auto parts store which will light up when an energized circuit has a blown fuse.

The blower motor is located on the firewall on the passenger side, in general on GM cars from the 1990s.

You may have to remove some items to get to it, though.
Blower Motor REMOVAL & INSTALLATION

1. Disconnect the negative battery cable.
2. If necessary, tag and disconnect the number 2, 4 and 6 spark plug wires from the ignition coil and move the coil out of the way.
3. For 1993-99 vehicles, remove the nuts and cross brace bar.
4. Detach the electrical connections from the blower motor.
5. Disconnect the cooling tube from the blower motor.
6. Unfasten the screws securing the blower motor to the blower module assembly.
7. Remove the blower motor and fan assembly from the module.
8. If necessary, unfasten the nut attaching the fan to the blower motor shaft, then pull the fan from the blower motor. Fig. 1: The blower motor and fan assembly is mounted in the heater and A/C module, and is accessible from the engine compartment
   Fig. 2: You can disassemble the fan from the motor by removing the retaining nut
   To install:
   
9. If the fan was removed from the motor, position the fan on the shaft, then install the retaining nut. Tighten the nut to 12 inch lbs. (1.4 Nm).
10. Position the blower motor and fan assembly to the module, then install the retaining screws. Tighten to 5 inch lbs. (0.6 Nm).
11. Connect the cooling tube to the blower motor.
12. Attach the electrical connector to the blower motor.
13. On 1993-98 vehicles, install the cross brace bar and retaining nuts. Tighten the nuts to 18 ft. lbs. (25 Nm).
14. If removed, install the coil and connect the spark plug wires, as tagged during removal.
15. Connect the negative battery cable.

C-19 Blower motor fuse 25A located in cabin fuse box. Left hand footwell on LHD vehicles, right hand dashboard on RHD vehicles.
Start by checking blower relay B-36 in the engine compartment fuse and relay box. Remove the relay. Jumper directly from battery to pins 85 and 86. (also see here: http://www.fixya.com/cars/r5544622-wire_relay if you dont know about relays) The relay should click Now measure across pins 30 and 87. Measurement should be 0 ohm.
Remove the blower motor(3 screws on the bottom of the unit under the passenger side dash) and connect jumper leads from the battery directly to the blower motor to see that it operates.
The blower motor resister is mounted on the ducting between the motor housing and the heating unit. Remove to test
Measure :

• pin 1-2 : 2.4 ohm
• pin 2-4 : 0.9 ohm
• pin 2-6 : 0.28 ohm
• pin 2-3 : 0 ohm

fuse number 2, 30amp, under rear seat, driver's side. (there is an additional fuse box under rear seat near battery)

First place to check is fuse box. Look at F-20. It is under the dash, left of the steering wheel.

Here's a link to the fuse box legend...

http://www.wjjeeps.com/fuses.htm

Here's a link to show you where the fuses sit in the box...

http://www.wjjeeps.com/misc/jblock_main.jpg

Hi
The frist thing i would look at would be the blower motor feed a live wire to it to make sure the motor has not gone but the fuse will be under your let knee not sure want number, but all so give the motor a tap with some thing to see if this makes it work.
Paul