blowing 20 amp ecm-1 fuse

1999 GMC YUKON
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SPACEDOUTM
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Why am I blowing the 20 amp ECM-1 fuse located in the fuse box under the hood. I have a 1999 GMC Yukon.
Mar 13, 2011 at 3:39 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Its either the circuit is shorted to ground or the component itself being powered by the ECM-1 fuse
Mar 13, 2011 at 5:02 PM
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SPACEDOUTM
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what are the components powered by the ECM-1 fuse?
Mar 14, 2011 at 12:05 AM
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