Blower motor just hums like there isn't enough voltage to kick it in and the radio and dash lights come on when i turn the blower motor on. When I turn the head lights on the dash lights and the radio go off. blinkers only work if the blower motor is off and the head lights are off.

for the fan the motor resistor would be a possible cause, but the heat itself doesnt come up to temp? That wouldnt be a fan problem.

First check the 15 amp HVAC fuse located in the main fuse block inside the car on the passenger side of the center console, under a cover. If the fuse is good, then the problem may either be the HVAC blower switch (which is the fan blower selector switch), the fan blower motor resistor, or the fan blower motor. An auto repair manual will explain and illustrate for you the steps on how to check each of these components.

Even after pushing the ac light switch on, the fan blower selector switch has to be turned on as well (working) because it provides an electrical path to the positive side of the battery to complete the circuit and turn the ac light on. What the ac light switch does is provide the electrical path for the ac compressor clutch to come on through the ac control relay which is controlled by the car's PCM(computer) when you want ac, but the ac light switch still needs to run through the fan blower selector switch to receive its power. You can turn on the fan without the ac light switch because it gets its ground path(negative) from the blower motor. So the blower motor has to work in order to provide a ground path for the fan blower selector switch to be functional. You could have a faulty blower motor which is why no air blows through the vents. The fan blower motor is located inside the car on the passenger side underneath the dash at the bottom end of the glove compartment box. You'll see it. It's right above where a person rests their feet on the floor. Therefore, if your 15 amp HVAC fuse is good, check to see if you have voltage at the blower motor connector. Unclip the connector and with the ignition on and the fan blower switch moved to any one of the first 3 selections, check for voltage using a multimeter. The voltage will vary because there is a blower motor resistor. Voltage should be higher on setting 3 than 1. If you do have voltage at the blower motor connector, check for a faulty blower motor. The auto repair manual will tell you how to do it using jumper wires.

It's normal that your car is running hot because the radiator fan works in conjunction with your ac compressor. If the ac is on, the radiator fan will be on and therefore the engine coolant temperature will stay in it's normal operating range. If the ac is off, the radiator fan will stay off as well and the engine coolant temperature gauge will begin to rise and show pretty hot (especially at idle). It will do this up until a certain degree then the radiator fan should turn on thermostatically and stabilize the temperature. It's scary and I know what your saying because it does that to my car if my ac isn't on. Don't worry it won't overheat.

Sounds like your blower motor when out, check voltage at the blower motor connector under the dash passenger side under dash, with key and blower on, if you have voltage blower motor out, also tap on it some time it will turn it on, but if it happens again you will have to replace it.

CHECK YOUR FUEL PUMP

The blower motor needs to be replaced. Also if it only blows on high the blower motor resister block may need to be replaced as well.

If the blower motor only works in high, the blower resistors are most likely burnt out and need to be replaced. It could also be the speed switch but since it works in high also it's unlikely. I'm not sure if that's related to the other problem, but it's certainly possible. I would start there and see where that takes you. They are a dealer only item but should only run about $30.

Disconnect the negative battery cable (if you have an anti-theft radio, make sure you have the code).
The blower unit is located in the dash, behind the glove box.
Remove the glove box and the glove box frame(damping screws on the sides and two screws underneath).
If the car isn’t equipped with air conditioning, remove the heater duct between the heater core and the blower assembly housings. Then remove the three blower housing retaining nuts, pull the blower housing out far enough to unplug the electrical connectors (at the lower right edge, right above the kick panel) and remove the blower assembly housing.
If the car has air conditioning, remove the strap bolt, the blower under cover and the three blower housing retaining nuts, then remove the blower assembly as previously described.
If you are replacing the blower motor itself, or either of the blower fan wheels, remove the motor, remove the retaining clip(s) and remove the fan wheel(s).
Reverse procedure to install.
Hope this helps you.

On the passenger side interior, up front, under the dash, take the kick panel out, take the panel out from under the dash. Now you must take the computer out because there isnt enough room for the blower motor to clear the computer. Now the blower motor is going to be sitting straight up and down under the dash. Its held in with 3 bolts. Remove the bolts, and pull the motor out. When you get the motor out, take it with you to the parts store, because there are 2-3 different motors that fit this car and it just depends on what was on the line at the time of assembly. Match the motor, and re-install.

1.) remove screw from right door sill trim plate, (that piece of trim that covers the edge of the carpet when the door is open) 2.) remove right hinge pillar trim panel (passenger side kick panel) 3.) disconnect blower motor electrical connectors 4.) remove blower motor cover 5.) disconnect the cooling tube (rubber hose that attaches to the motor ) .6.) loosen courtesy light screws and move light out of way (if equipped) 7.)remove right side dash support bolt (under dash twist your head around like the excorsist, , lol , where the dash meets the side panel pillar) 8.)remove blower motor-to-case screws 9.) remove blower 10.) remove fan from blower motor shaft 11.) to install reverse removal procedure ,.. not as bad as it sounds , cheers.

The radio light is a separate issue and not related, the radio needs to be pulled out and a tiny bulb inside the radio replaced that lites up the display, the other issue is caused by a burnt out blower speed controller circuit or module.