Blower motor and turn signals stopped working

Blower motor control module would be a good guess , but is still just a guess . Testing the electrical circuit would need to be done to know for sure . Do you know how to test electronic's , automotive electrical circuits ?

HVAC Blower Controls Circuit Description
The blower motor is controlled by the blower control module. The blower control module receives the requested blower speed from the heater and A/C control in the form of a 5 volt pulse modulated reference signal. When low speed is requested by the heater and A/C control, the pulse width is reduced. When high blower speed is requested, the pulse width is increased. An open circuit, short to ground or short to battery on the blower speed input circuit of the blower control module will disrupt the pulse modulated reference signal. If the blower control module does not receive the pulse modulated signal, the blower motor will not operate. The blower control module receives power from the rear fuse block. The blower control module also provides a ground for the blower motor. A separate blower motor flange ground is used to limit radio frequency interference.

HVAC Blower Motor Circuit

I suggest to check fuses frasher devices and relays; keep in mind that some circuit is porbably in short.

yes most like but do u hsve a after market radio they might have put to much amp on the circut

Your impala doesn't have a resistor , it has a blower motor control processor and it doesn't work the way you think it does
Chevy Trailblazer EXT Blower Motor Won Turn Off
Blower Motor Control Processor
The blower motor control processor is an interface between the HVAC control module and the blower motor. The blower motor speed control, battery positive voltage and ground circuits enable the control processor to operate. The HVAC control module provides a PWM signal to the control processor in order to command the blower motor speed. The processor supplies 12 volts to the blower motor through the blower motor voltage supply circuit. The control processor uses the blower motor ground as a low side control to adjust the blower motor speed.

HVAC Blower Motor Circuit

check if you can slowly turn the key, if they start working, replace the ignition switch

Could be a coincidence, as they are NOT on the same circuit. If you have no speeds, could be,fuse, relay, resistor, or blower motor. As for turn signals, do the 4-ways work? If so your flasher is okay, May be the switch on the steering column

Check for power at blower motor connector with a/c on and blower on low if you have power I would suspect blower motor.

look in your high current fuse box (distribution box) under the hood, inside the box are 4 relays and two rows of fuses, the center row of fuses the second fuse (next to starter/alt fuse if marked) is a 50 amp fuse for turn signals and blower motor, see if it is good, let me know what you find

Your fan seems to be drawing way too much current, common with fan motors of all kinds when they are going bad. It will still blow, but hot wires and blown fuses in the normal circuit indicate you have an excessive load in the circuit. Fan motors create this condition regularly, but are often ignored since they are "still blowing."

Here's a cheap, easy way to test my theory:
Try a new fuse, the proper amperage, but leave the blower motor unplugged at the blower itself. That will tell you in a few rides if the blower was the culprit. (Which it most likely is.) I bet your #20 fuse will stop blowing and no more smoking pink wires! Hope this helps. Remember, blower motors are cheap, traffic tickets and dash fires are not. The blower motor draw is the logical thing wrong with this picture. Good LUCK! TT

Dont know whay the blower motor doesnt work, but that age with these cars (I have two 94 Marks) both have had the turn signal switch replaced for problems with hazards not working, wipers not shutting off, etc.
To check your climate control system: Press OFF and FLOOR at the same time, release, then hit AUTO. That will make it self-test. You will get 888 (ok) or an error code (024, 025, or such)