Please read the step-by-step instructions and watch the video before attempting. Also, do not try to follow this video without reading the step-by-step instructions. The video is just meant to be used as a visual aid.
Step-by-step instructions:
docs.google.com/document/d/e/2PACX-1vRQdXtoFc9J5SRZWRX6bAe7oEMJLWq7oBMMVLPqf1UJ3gqFbbP_c09g8QgAenJZu1Ia-8j25RiRyWqQ/pub
GM-Volt Forum on the subject:
www.gm-volt.com/threads/2013-service-high-voltage-charging-system-fix-updated-vcx-nano-setup-guide-vx-manager-acdelco-tds-techline-connect-sps2.341268/