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Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

Emissions System Urgent P · Powertrain Clear all

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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All severities9253 Low priority305 Check soon8256 Urgent621

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All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

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P200CParticulate Filter Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP200C relates to particulate filter over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P200DParticulate Filter Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP200D relates to particulate filter over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P200ECatalyst System Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP200E relates to catalyst system over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P200FCatalyst System Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP200F relates to catalyst system over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P20ECSCR NOx Catalyst - Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP20EC relates to scr nox catalyst - over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P20EDSCR NOx Pre-Catalyst - Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP20ED relates to scr nox pre-catalyst - over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P20F0SCR NOx Catalyst - Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP20F0 relates to scr nox catalyst - over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P20F1SCR NOx Pre-Catalyst - Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP20F1 relates to scr nox pre-catalyst - over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.