97 grand cherokee blower speed problem

1997 JEEP GRAND CHEROKEE
157 MILES
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DJ MOSCRIP
  • MEMBER
  • 2 POSTS
the blower speed is not working, I replaced the heater control unit in the dash and it still doesn't work. I was wondering if you could send me in the right direction with any ideas. I removed the resistor block and nothing looks burnt. I tested for power at the resistor block connector and only the black wire has power even when the speeds were being switched.
Feb 25, 2012 at 8:20 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the resistor for continuity where it goes in and each terminal of the resistor if no continuity replace the resistor
Feb 25, 2012 at 8:31 PM
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DJ MOSCRIP
  • MEMBER
  • 2 POSTS
ok. thank you.
Feb 25, 2012 at 8:38 PM
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