Retrieving Codes Using Generic Scan Tool (GST): Notes

Turn ignition off. Connect scan tool to DLC located under left side dash panel. See Fig 1. Turn ignition on. Enter program desired on GST screen. Perform each diagnostic mode according to appropriate service procedure displayed on GST. For further information, see the appropriate operation manual supplied by generic scan tool manufacturer.

GST Mode Descriptions Typical GST modes available are listed with a brief definition of there function. These Generic Scan Tool modes were specified in SAE J1979.