With TECH 2 Scan Tool
Scan Tool DiagnosticsA scan tool is used to read current and history diagnostic trouble codes and to clear all diagnostic trouble codes after a repair is completed. The scar tool must be updated to communicate with the SRS through a replaceable cartridge before it can be used for SRS diagnostics. To use the scan tool, connect it to the data link connector and turn the ignition switch "ON". The scan tool reads serial data from the SDM "Serial Data" line terminal "24" to the data link connector terminal "9".
After all of the codes have been displayed, the entire code sequence will continually by repeated until ground is removed from terminal 4 of the DLC connector.