From: sidneybek on
If your heater blower motor only works on one speed setting or none
it's because the blower resistor is burnt,read below for full details:

Heavy blower resistor (Toy EPC calls it a cooler/coil resistor,fan
coil resistor) for fan Toyota # 88635-89103 (85-86 4-Runner,4 speed
fan) & Toyota # 87138-89105 (89 pickup):

http://www.4crawler.com/4x4/CheapTricks/Blower.shtml

Sidney(R) (tm)
Repairs TV's,VCR's,home/car audio out of my apartment
E-mail:sidneybek(at)yahoo.com
Dartmouth,Nova Scotia
Canada

http://web.archive.org/web/20040312120415/www.herald.ns.ca/cgi-bin/home/displayphoto?2002/12/22+126.raw+1019+Business+

http://web.archive.org/web/20040229023255/http://www.herald.ns.ca/cgi-bin/home/displaystory?2002/12/22+126.raw+Business

http://groups.google.com/group/hfx.forsale/browse_thread/thread/43940ce83231ab85/4e4c696fbf04837f?q=sidney+tv+repair&rnum=1#4e4c696fbf04837f

http://www.iwaynet.net/~nesda/May02/May18.html
http://www.iwaynet.net/~nesda/SonyAudMod.html
http://www.repairfaq.org/sam/sonytune.htm#sonynoi
http://www.iwaynet.net/~nesda/Oct02/Oct028.html
http://www.iwaynet.net/~nesda/Oct02/Oct029.html
http://www.iwaynet.net/~nesda/Oct04/Oct041.html