Scan Tool Testing and Procedures

Scan Tool Diagnostics

A scan tool can read serial data from terminal 13 of the Data Link Connector (DLC). The scan tool is used to read Diagnostic Trouble Codes (DTCs), and to clear some DTCs after a repair is completed. By design, DTC B1620, B1650 and B1670 can not be cleared. And the DTC B2500 can not be cleared for the ignition cycle once the DTC has been detected by the SDM.

To use the scan tool, turn the ignition OFF, connect the scan tool to the DLC, and turn the ignition switch to ON.

Follow the instructions in the scan tool manual. The SDM sends serial data from terminal 54 of the SDM to terminal 13 of the DLC.