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.
Trip Display On Scan Tool
On Board System Readiness function is available on New Generation Star (NGS) tester or generic scan tools. Readiness function indicates status of each OBD-II monitor. Parameter Identification (PID) display on NGS tester, indicates status of monitors for a TRIP SET as either Yes or No. A trip must be completed before entry conditions necessary for the monitoring of Catalyst Efficiency Monitor test are enabled.
NO RELATED
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.