2014 elantra heater/ac blower stopped working seconds after changing module control

Question edited for clarity.

Question moved to model category.

HVAC Blower Motor Control Module Resistor 97035- ...

Amazon.ca https://www.amazon.ca > YCT-Control-Resistor-97035...
HVAC Blower Motor Control Module Resistor 97035-3D000 Fits Hyundai Elantra Tiburon Tucson Santa Fe Sonata ; Ships from. Amazon ; Sold by. YCT AUTO ; Returns.
Rating: 3.7 · ‎58 reviews · ‎$23.52 · ‎In stock

Hyundai Elantra Blower Motor Resistor

Advance Auto Parts https://shop.advanceautoparts.com > find > hyundai-el...
Low prices on Blower Motor Resistor for your Hyundai Elantra at Advance Auto Parts. Find aftermarket and OEM parts online or at a local store near you.

2012 Hyundai Elantra Blower Motor Resistors

CarParts.com https://www.carparts.com > ... > Blower Motor Resistor
Get the best deals on an aftermarket 2012 Hyundai Elantra Blower Motor Resistor. Lifetime Replacement Guarantee. Free 60-Day Returns.
..

There are several possible reasons why your blower, vent, defrost, AC, and heater might stop blowing air:

1. Blower Motor Failure: The blower motor is responsible for blowing the air through the vents. If the blower motor fails, you will not get any airflow from the vents.
2. Blower Motor Resistor Failure: The blower motor resistor controls the speed of the blower motor. If the resistor fails, the blower motor may stop working or only work at one speed.
3. Fuse or Relay Failure: A blown fuse or faulty relay in the blower motor circuit can prevent the blower motor from working.
4. Control Module Failure: The HVAC (heating, ventilation, and air conditioning) control module is responsible for controlling the blower motor and other components. If the control module fails, it can prevent the blower motor from working.
5. Vacuum Leak: If your vehicle uses a vacuum system to control the vents, a vacuum leak can prevent the system from working properly.
6. Broken Blend Door: The blend door controls the direction of the airflow. If the blend door breaks or gets stuck, the air may not flow through the correct vents.
7. Wiring or Connector Issues: Faulty wiring or connectors in the blower motor circuit can prevent the blower motor from working.

Is the air blowing out of the defrost or heater vents? My thought is it has to be going somewhere if the blower is on, so it would likely be a faulty climate control unit or blend door motor shifting it to the incorrect position. If I can assist further, reach me at https://www.6ya.com/thericepatch

Hi Elaine , What make vehicle are you working on ? Most manufactures have a relay for hi speed an have a blower motor resistor for all other speeds . Depending on make vehicle control modules need programming in some cases . Blower Motor Problems Auto Repair Help

the ac starting and stopping is from high head pressure (too much gas/blockage) or thermostat settings If you have a climate control module that also controls the heat then it may be the module that is faulty. have it checked out by an accredited ac specialist shop.

Check this procedure...Blower Motor Resistor and Controller Replacement


REMOVAL

1. Disconnect and isolate the batten' negative cable.

2. Depress locking tab and unplug the wire harness connector from the blower motor

resistor or controller (power module).

3. Depress locking tab and unplug the resistor or controller connector from the blower

motor.

4. Remove the 2 screws that secure the blower motor resistor or controller to the

heater-AC housing.

5. Remove the blower motor resistor or controller from the heater AC housing.


INSTALLATION

1. Install the blower motor resistor or controller to the heater AC housing. The

housing is indexed to allow (controller power module) mounting in only one

position. Tighten the mounting screws to 2.2 Nm(20 in. Lbs.).

2. Plug in the wire harness connector to the blower motor resistor or controller.

3. Plug in the connector from the blower motor resistor or controller to the blower

motor.

4. Connect the batten' negative cable.




Hope this helps (rerember to rating this and leave a testiomonial).

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

Welcome to FIxYa.com

Blower Motor Resistor and Controller Replacement

Image Blower Motor Resistor Or Controller/Power Module Remove/Install

REMOVAL

1. Disconnect and isolate the batten' negative cable.

2. Depress locking tab and unplug the wire harness connector from the blower motor

resistor or controller (power module).

3. Depress locking tab and unplug the resistor or controller connector from the blower

motor.

4. Remove the 2 screws that secure the blower motor resistor or controller to the

heater-AC housing.

5. Remove the blower motor resistor or controller from the heater AC housing.

INSTALLATION

1. Install the blower motor resistor or controller to the heater AC housing. The

housing is indexed to allow (controller power module) mounting in only one

position. Tighten the mounting screws to 2.2 Nm(20 in. Lbs.).

2. Plug in the wire harness connector to the blower motor resistor or controller.

3. Plug in the connector from the blower motor resistor or controller to the blower

motor.

4. Connect the batten' negative cable.

Thank you for using FixYa.com

Regards, Lee Davidian

The blower motor relay is stuck, holding the curcit engauged. Look under the hood, find the conveinence center, where you will find fuses and relays (read the cover, see if one says AC/Heater blower relay), if not, look in your car's manual, to see where this relay is located. When you find it, pull it out, see if the moter stops, if ti does , replace it.

could possibly be control head for heater/ac system. lots of gm vehicles have this problem.sounds like a loose connection, look under the dash on the right side near blower motor to check wires to blower motor