replacing resistor on 2004 GMC Canyon

the heater blower switch only works on high how do u replace it and where is it located

by in Clinton, IN on August 27, 2012
2 answers
ANSWER by , August 27, 2012
NEXT TO BLOWER MOTOR. YES REPLACE IT ALSO CHECK PLUG FOR SIGNS OF HEAT FROM BAD CONNECTION NEW PLUG AVAIL. FROM NAPA.
ANSWER by , August 27, 2012
MOUNTED IN HEATER BOX BUT REPL WIRE HARENESS ALSO