Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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