Data Link Connector (DLC)

WARNING: This page is about a different car, the 2017 GMC Acadia Limited, 2017 Chevrolet Traverse, and 2017 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

The data link connector (DLC) is a standardized 16-cavity connector. Connector design and location is dictated by an industry wide standard, and is required to provide the following:

Pin 1 GMLAN low speed communications terminal
Pin 4 Scan tool power ground terminal
Pin 5 Common signal ground terminal
Pin 6 High speed GMLAN serial data bus (+) terminal
Pin 7
Pin 14 High speed GMLAN serial data bus (-) terminal
Pin 16 Scan tool power, battery positive voltage terminal