Electric tailgate not working properly

Tiny
PAUL KREMER
  • MEMBER
  • 2004 GMC ENVOY
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 110,000 MILES
Hi, cannot open gate with buttons and key, window goes down but not up, roof is not moving. Checked both locks, disconnect and connect again, when connect upper lock sound is coming, lower lock does not make sound. I connected lower lock on upper connector it makes sound, that means lower connector or wire has problem?
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Tuesday, July 9th, 2019 AT 12:58 PM

1 Reply

Tiny
SCGRANTURISMO
  • EXPERT
Hello,

Yes it does. There is an open or high resistance somewhere in the circuit for the lower lock. In the diagrams down below I have included the wiring diagrams for the power locks as well as directions on how to find an open in an automotive electrical circuit. Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Thursday, July 11th, 2019 AT 12:23 AM

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