Question about 2007 GMC Yukon Denali
AUTOMATIC LIFT GATE WILL OPEN FINE BUT WHEN I PUSH THE BUTTON ON THE BOTTOM OF THE GATE IT JUST MAKES A HUMMING NOISE FOR A SECOND AND DOESNT CLOSE
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Posted on Jan 02, 2017
Tips for a great answer:
An open or short to ground in the lift gate lock relay battery positive voltage circuit
A faulty lift gate lock relay
An open or short to ground in the lift gate lock relay control circuit
A short to ground in the lift gate lock actuator lock control circuit
A faulty BCM
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