my blower only works on high which is #4 for the heat and air on 2002 Nissan Quest

this just started blower works only on high #4

Asked by for the 2002 Nissan Quest
2 answers
There is a blower fan resistor pack that has failed easy to replace. $ wires going to it usually under dash near glove box. Autozone have some popular workshop manuals for free on line once you register (for free) on their website They may have a picture/location of the part.
with the nissans its usually the heating element located in the blower under the dash