2003 mazda protege fuse keeps blowing

need to inspect the bulbs and holder of the tail lights

bad earth , corrosion ,

if brake lights faulty could also be pedal activation switch

if no better
it may be the tail light switch at the dash

it sounds like either the wires or module inside the distibutor take the cap off and see if you see anyting melted or any kind of bare wires you can also ohm out the wires checking the resistance that can tell you if you have and open or shorted circuit .a new or used distibutor should fix your problem

That fuse sounds like it powers the ac compressor.
The blower motor usually takes a 30 amp fuse.
Does the blower motor work if you hook it to direct voltage ?

electrical dudes says stop puting fuses in it now/// over time more stuff gets injured by exsesive heat look for any thing new some one has installed eg . stereo check trunk for damage in the corners near tailights and front marker light

problem with one of the flaps ,just turn vent control to screen so it blows onto screen instead,or put a clamp on the water hose

You have not supplied sufficient information so here is one possibility.

If you replace a fuse you must use one that is the correct amperage for the circuit.

Check your owner's manual for the correct amperage fuse for the circuit concerned and make doubly sure the correct one is installed.

If it is the correct amperage for the circuit please supply more information on the problem including which fuse keeps blowing:

1. Is the fuse popping immediately you replace it in the fuse panel and switch power to the circuit or only after a period of time of operating the vehicle? For example, if it is a lighting fuse, does the new fuse blow immediately you switch on the light concerned?

2. What is the function on the vehicle that has the power cut when the fuse blows?

3. Has there been any work carried out on any part of the electrical system or on electrical components of your vehicle prior to this problem arising? If so what was done?

check all your fuses sometime when giving a jump start
a surge of power a cures and blows out the main fuse

Sure take your buddy with you when you go so he can drive you away while they fix it but you do the talking with your buddy standing by ready to leave. Yes low on freon condensate drain stopped up fan belt loose or needes replaced. This is an old car and the mechanics will likly find many things wrong with it make sure they know that you what them to run it awile after it's fixed so that it in with some gas in the tank so they won't worry about running out. Should get alot of repairs done for less than $200

Did they check the wiring in the ECM wiring loom? The car's computer would have a separate wiring and have a lot of them inside compared to the rest of the car. This happened to me once and had the car ECM rewired because of it.

try grounding the wipermotor housing.