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.
Inspection/Maintenance Catalyst System Set Procedure: Description
The purpose of this test is to satisfy the enable criteria necessary to execute I/M readiness diagnostics for the catalyst system. Test may be used to set the I/M System Status indicators to YES. Ensure vehicle meets requirements listed in conditions for running before performing this test. See CONDITIONS FOR RUNNING . Failure to meet necessary requirements may produce inaccurate test results.
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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.