Data Link Connector

The 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:

• Scan tool power battery positive voltage at terminal No. 16.
• Scan tool power ground at terminal No. 4.
• Common signal ground at terminal No. 5.
• Class 2 serial data at terminal No. 2.
• Keyless entry program enable signal at terminal No. 8.

All DLCs are required to provide a power supply, hot at all times, to pin No. 16. This circuit is used to power the scan tool. All DLCs supply a power ground at pin No. 4 and a clean signal ground at pin No. 5. The Class 2 serial data circuit is provided at pin No. 2 of the DLC.