'02 Chevy Impala Blower Motor Speed not working

Noticed my heater/ac blower motor is missing the lowest speed (#1) but all the others (2-5) still work. I didn’t see a fuse listed for low speed. Any Ideas.

Thanks Dave

Its most likely the blower speed resister block.

It is only a matter of time for the other speeds to go out. The speed control is a set of resistors. On resistor for each speed other than high. Get the whole bunch replaced because the others may need it soon and you will really be mad if you fix just the slow one to have the next one go out next month.