Alternative View

Data Link Connector and SCS Connector (with Shorting Service Connector installed):

SERVICE CHECK CONNECTOR
Located under the far right corner of dashboard, the SCS is a blue, two pin connector. Its pins can be shorted together to extract codes or to set timing.

DATA LINK CONNECTOR
Located next to the SCS, the three pin DLC feeds diagnostic information to a properly configured system scan tool.
CAUTION: Do not short pins in this connector together.