Diagnostic Trouble Code Check Procedure
WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
Taking into account the points in Fig 1, a flow chart showing how to proceed with troubleshooting using the diagnostic trouble code check is shown in Fig 2. This flowchart shows how to utilize the diagnostic trouble code check effectively, then by carefully checking the results, indicates how to proceed either to diagnostic trouble code troubleshooting or to troubleshooting of problem symptoms table.