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9,253 diagnostic guides

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Find codes by symptomChoose what you notice to search matching code guides.

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.

Body & Restraints Urgent Clear all

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

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

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

Showing 97–102 of 102

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B0019Passenger Instrument Panel Air Bag Deployment Loop Stage 1UrgentBody & Restraints1–3 hours for initial diagnosisB0019 means Passenger Instrument Panel Air Bag Deployment Loop Stage 1. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.B0020Passenger Instrument Panel Air Bag Deployment Loop Stage 2UrgentBody & Restraints1–3 hours for initial diagnosisB0020 means Passenger Instrument Panel Air Bag Deployment Loop Stage 2. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.B0021Left Curtain Air Bag Deployment ControlUrgentBody & Restraints1–3 hours for initial diagnosisB0021 means Left Curtain Air Bag Deployment Control. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.B0022Right Curtain Air Bag Deployment ControlUrgentBody & Restraints1–3 hours for initial diagnosisB0022 means Right Curtain Air Bag Deployment Control. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.B0028Passenger Side Deployment LoopUrgentBody & Restraints1–3 hours for initial diagnosisB0028 means Passenger Side Deployment Loop. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.B0051Deployment CommandedUrgentBody & Restraints1–3 hours for initial diagnosisB0051 means Deployment Commanded. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.