Scan Tool Diagnostics
WARNING: This page is about a different car, the 2002 Pontiac Bonneville and 2002 Buick LeSabre. 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 connect scan tool to DLC connector, located near base of steering column, plug in power source and turn the ignition switch to ON position. Follow scan tool manufacturer instructions for communication with SIR system.