The GM-52015 Test Adapters are a kit consisting of three connector plugs and one connector adapter with a male EVAP port threaded fitting, all contained in a storage case.
The adapter and plugs fit into the connectors in the Bolt EV battery, allowing the pack to be filled with smoke using the GM-41413-A EVAP Cart/Smoke Machine to test for and locate leaks at the cover-to-tray sealing surface, at electrical connectors, or other areas of the top cover and tray.