1999 Nissan Sentra variable speeds stopped working

1999 NISSAN SENTRA
118,000 MILES • 4 CYL • 2WD • AUTOMATIC
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HJJMGNAP
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  • 2 POSTS
windshield wipers only work at fastest setting.
AC/heater fan only works at full blast setting.

We replaced the AC/heater switch but still can't turn AC/heater fan to lower settings.

What's going on?
Feb 26, 2008 at 6:14 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Get a repair manual or you can download it below for a cheap price and find the blower motor resistor and test its resistances then report back.
Feb 27, 2008 at 3:51 AM
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