Check all of the following...........
1. Power and ground to the blower motor.
2. Blower motor itself.
3. A/C - Heater controller.
4. Lastly scan the vehicles computer to see if the ECM is getting the signal......
Elecrtical system, and connections between its components.AlternatorVoltage regulatorBatteryCable connections to battery
The heater blower for a 2002 Chevy Silverado is mounted under the dash. It is on the passenger side, in the heater housing.
Bad blower resistor?
The blower motor is located under the passenger side of the dash panel.
I think the blower motor relay is internal to the blower motor resistor which is located under the passenger side dash.
Why does my 99 silverado have no heat and the ac fuses look good and blower motot works great
the blower motor relay is located next to the blower motor it is connected to the motor by a purple and black wires
Most likely the Blower Motor Resistor.
Under the passenger side of the dash
What about it? Need more info.
Pass side firewall.
take the inner glove box liner out and it is right there on top of the blower assembly. Has a bundle of wires connected to it.