Check Engine Light Severity Checker

Enter the code from your OBD2 scanner. Get urgency, can-you-drive guidance, and typical causes — free and instant.

DTC / OBD2 code

When should you not drive?

Flashing check engine light, overheating, loss of power, or codes for misfire under load (catalyst damage risk) — pull over safely and diagnose. Steady light with a mild fuel-trim code is often drive-to-shop.

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