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.
Using OBD-II Scan Tool
To clear ECM memory using OBD-II scan tool, turn ignition off and connect scan tool to 16-pin Data Link Connector (DLC) located under left side of instrument panel. See Figure, Figure and Figure . Turn ignition and scan tool on. Enter MODE $04 to clear ECM memory. For detailed operation of scan tool, refer to scan tool manufacturer's operating manual. After memory has been cleared, Idle Speed Control motor must be initialized. See ISC INITIALIZATION under PROGRAMMING.
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Use the Manual With the Right Hardware
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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.