Scan Tool Diagnostics
WARNING: This page is about a different car, the 2001 Saturn LW300, 2001 Saturn LW200, 2001 Saturn L300, 2001 Saturn L200, and 2001 Saturn L100. However, it is still accessible from the selected car via links, so may be relevant.
Scan Tool (Tech 2) reads and clears current and history codes. Ensure scan tool contains correct software cartridge for SIR diagnostics. To use scan tool, connect it to DLC connector, plug in the power source and turn ignition switch to RUN position. Follow scan tool manufacturer instructions for communication with SIR system. Scan tester reads serial data from SDM data link output terminal No. 4 to DLC connector terminal No. 1.