OBD2 trouble code reference
8,157 codes across 1 prefix groups on this page.
P2xxx
- P233AKnock Sensor 2 Range/Performance Problempowertrain
- P233BKnock Sensor 2 Range/Performance Problem (Bank 2)powertrain
- P233CKnock Sensor 2 Range/Performance Problem (Bank 2)powertrain
- P233DKnock Sensor 2 Range/Performance Problem (Bank 2)powertrain
- P233EKnock Sensor 2 Range/Performance Problem (Bank 2)powertrain
- P233FISO/SAE Reservedpowertrain
- P2340Cylinder 5 Above Knock Thresholdpowertrain
- P2341Cylinder 6 Above Knock Thresholdpowertrain
- P2342Cylinder 7 Above Knock Thresholdpowertrain
- P2343Cylinder 8 Above Knock Thresholdpowertrain
- P2344Cylinder 9 Above Knock Thresholdpowertrain
- P2345Cylinder 10 Above Knock Thresholdpowertrain
- P2346Cylinder 11 Above Knock Thresholdpowertrain
- P2347Cylinder 12 Above Knock Thresholdpowertrain
- P2348through P23FF ISO/SAE Reservedpowertrain
- P240DEvaporative Emission System Leak Detection Pump Control Circuit Lowpowertrain
- P240EEvaporative Emission System Leak Detection Pump Control Circuit Lowpowertrain
- P240FISO/SAE Reservedpowertrain
- P2413Exhaust Gas Recirculation System Performancepowertrain
- P241AEvaporative Emission System Switching Valve Control Circuit Range/Performance Problempowertrain
- P241BEvaporative Emission System Switching Valve Control Circuit Range/Performance Problem (Bank 1)powertrain
- P241CEvaporative Emission System Switching Valve Control Circuit Range/Performance Problempowertrain
- P241DEvaporative Emission System Switching Valve Control Circuit Range/Performance Problempowertrain
- P241EEvaporative Emission System Switching Valve Control Circuit Range/Performance Problempowertrain
- P241FISO/SAE Reservedpowertrain
- P2425Exhaust Gas Recirculation Cooling Valve Control Circuit/Openpowertrain
- P2426Exhaust Gas Recirculation Cooling Valve Control Circuit Lowpowertrain
- P2427Exhaust Gas Recirculation Cooling Valve Control Circuit Highpowertrain
- P242FDiesel Particulate Filter Restriction Ash Accumulationpowertrain
- P2430Secondary Air Injection System Air Flow/Pressure Sensor Circuit (Bank 1)powertrain
- P2431Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Problem (Bank 1)powertrain
- P2432Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low (Bank 1)powertrain
- P2433Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 1powertrain
- P2434Secondary Air Injection System Air Flow/Pressure Sensor Circuit Intermittent/Erratic (Bank 1)powertrain
- P2435Secondary Air Injection System Air Flow/Pressure Sensor Circuit Bank 2powertrain
- P2436Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance (Bank 2)powertrain
- P2437Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 2powertrain
- P2438Secondary Air Injection System Air Flow/Pressure Sensor Circuit High (Bank 2)powertrain
- P2439Secondary Air Injection System Air Flow/Pressure Sensor Circuit Intermittent/Erratic (Bank 2)powertrain
- P243ASecondary Air Injection System Air Flow/Pressure Sensor Range/Performance Problempowertrain
- P243BSecondary Air Injection System Switching Valve Stuck Open (Bank 1)powertrain
- P243CSecondary Air Injection System Switching Valve Stuck Open (Bank 1)powertrain
- P243DSecondary Air Injection System Switching Valve Stuck Open (Bank 1)powertrain
- P243ESecondary Air Injection System Switching Valve Stuck Open (Bank 1)powertrain
- P243FISO/SAE Reserved indicates that it is a reserved code and does not have a specific definition or application in standard diagnostic trouble codespowertrain
- P2452Diesel Particulate Filter Pressure Sensor "A" Circuitpowertrain
- P2453Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performancepowertrain
- P2454Diesel Particulate Filter Pressure Sensor "A" Circuit Lowpowertrain
- P2455Diesel Particulate Filter Pressure Sensor "A" Circuit Highpowertrain
- P2456Diesel Particulate Filter Pressure Sensor "A" Circuit Intermittent/Erraticpowertrain