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.
Summary Chart
| Items | Fuel Injection System | Misfire | Other | ||||
|---|---|---|---|---|---|---|---|
| MIL (goes off) | 3 (pattern B) | 3 (pattern B) | 3 (pattern B) | ||||
| DTC, Freeze Frame Data (no display) | 80 (pattern C) | 80 (pattern C) | 40 (pattern A) | ||||
| 1st Trip DTC (clear) | 1 (pattern C), (1) | 1 (pattern C), (1) | 1 (pattern B) | ||||
| 1st Trip Freeze Frame Data (clear) | (1), (2) | (1), (2) | 1 (pattern B) | ||||
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For details about patterns B and C under "Fuel Injection System" and "Misfire", see "EXPLANATION FOR DRIVING PATTERNS FOR "MISFIRE < EXHAUST QUALITY DETERIORATION >""FUEL INJECTION SYSTEM"Β .
For details about patterns A and B under Other, see "EXPLANATION FOR DRIVING PATTERNS EXCEPT FOR "MISFIRE < EXHAUST QUALITY DETERIORATION >""FUEL INJECTION SYSTEM"Β .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.