1. Does the Blower work on High (or #4) only? If so then it is not the Front Blower Motor or the Relay that is bad, but it is the Resistor which is located behind the Glove box. Follow step #a. below and take out the Glove Box to access. It has 3 to 4 wires going into it. The wiring path is: Switches to the Resistor and then to the Motor.
2. The Front Blower Motor Relay is located in the IPM - Fuse and Relay Center. It is located in a box within the engine compartment. However: (restated) IF the Blower does only work on High then this Relay is good and you should only replace the Resistor Only. The Identification and Location of the Relays and Fuses is located on the back side (inside) of the IPM cover. Remove the cover. The Front Blower Motor Relay is the same Type (size and shape) as several other Relays in the panel. Switch out the Front Blower Motor Relay with a non-engine operation Relay for a function that you know works. Recheck the operations of both functions. If the Front Blower Relay now works and the other function now does not work, it was the Relay was bad and needs to be replaced.
a. Disconnect the Negative Cable from the Battery
and wait at least two (2) minutes to deactivate the Airbag Sensors.
b. Remove the Glove Box.
c. Disconnect the Electrical Connection.
d. Unbolt/Unscrew the bolts/metal screws and remove the Resistor.
Installation is reverse of above.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!