I'm finding several electrical issues popping up on my Wifes 2015 Tahoe. I have worked through all of them to date and find Most issues come down to the electrical connectors at the plugs. I have also found issues with the crimped connectors on alot of the heavy positive and negative cables. To date I have fixed Dash going out, center console going out, fans running on High, seat sensors airbag, Battery negative cable crimps, positive cable crimps, alternator harness crimps and connectors, suspension harness connectors and a few more I have forgotten about.
All have been fixed the same way, checking the connectors, continuity testing terminal to terminal for shorts, cleaning them with WD, gently brushing the spades, a small amount of dielectric grease, plug and unplug them a dozen times. Few and far between is a recrimp on the terminal ends, it is much more common on 14gauge and up, the copper expands and contracts more and should be checked. It seems to work.
All have been fixed the same way, checking the connectors, continuity testing terminal to terminal for shorts, cleaning them with WD, gently brushing the spades, a small amount of dielectric grease, plug and unplug them a dozen times. Few and far between is a recrimp on the terminal ends, it is much more common on 14gauge and up, the copper expands and contracts more and should be checked. It seems to work.