Maybe an electrical problem, as far as that. Do you have an after market CD player hooked up.. may be hooked up wrong. Also if there are bare wires, you should cover the tips with black electrical tape.
Is this an automatic or manual transmission?
No, a Mazda 626 does not have fuses for ABS brakes. In fact, many Mazda models do not have fuses for ABS brakes.
A short somewhere in the wiring, an incorrectly installed bulb, damaged horn ring assembly, etc.
A blown fuse or a damaged computer would cause the turn signals, interior lights, and door locks not to work in the Mazda 3. The fuses are located under the dash on the driver's side of the car.
Find out why the fuse is blowing. You have a short or the circuit is overloaded.
check your fuses first
Check your fuses.
check the fuse panel and the fuses
Check the fuses.
Check the fuses.
There is an electrical short to ground in the fan switch or in the blower motor itself.
The 50 ampere engine fuses is blowing because more than 50 amperes of electricity is passing through it.