Most likely is your temperature control panel.These go bad often.But is relatively easy to replace. But if you are unclear of what I am talking about it's the panel that has the knobs on it that controls the fan.
Other than watch a You Tube Video, on any similar
axle housing ?
Remove the rear cover,bolt,cross shaft pin,push
axles in,remove c-clip & pull axle out !!
if your car will not start. then try trun the key on do not try and start it just trun it on let it set for about 10 to 20 min.s then trun it off and try to start it. should reset the computor.