ground short in ac/heating system

2003 GMC ENVOY
198,000 MILES • 4.2L • 6 CYL • 4WD • AUTOMATIC
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DIVERLEDFORD1968
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  • 3 POSTS
ground wire is hot and the red wire is not hot.
Oct 23, 2014 at 2:56 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
The power supply has to be shorted to ground. Have you tried tracing wires to see if there is anything damaged or broken? Have you checked plugs to make sure nothing has melted down and shorted?
Oct 23, 2014 at 4:54 PM
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DIVERLEDFORD1968
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  • 3 POSTS
I took the control unit out, checked the plug and it looks good. not sure how to proceed from there.
Oct 23, 2014 at 8:49 PM
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DIVERLEDFORD1968
  • MEMBER
  • 3 POSTS
can I cut the red and black wires going into the control unit and run new wires with a fuse back to the battery?
Oct 23, 2014 at 8:56 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Not recommended. Have you tried tracing the power supply wire to see if it is damaged?
Oct 24, 2014 at 5:04 AM