Scan Tool Testing and Procedures

The scan tool used provides the following capabilities:
^ Read the data list.
^ Read current and history diagnostic trouble codes.
^ Clear the diagnostic trouble codes after a repair is completed.

Make sure the scan tool contains an updated cartridge before attempting to communicate with the SIR system. To use the scan tool, connect it to the data link connector (DLC) and turn the ignition switch to the RUN position. The scan tool reads serial data sent from the inflatable restraint Sensing and Diagnostic Module (SDM) SERIAL DATA Output terminal 5 to the DLC terminal 9.