- P23FEBank 1 System B Air-Fuel Ratio ImbalanceFull content
- P23FFBank 2 System B Air-Fuel Ratio ImbalanceFull content
- P2400Evaporative Emission System Leak Detection Pump Control Circuit/OpenFull content
- P2401Evaporative Emission System Leak Detection Pump Control Circuit LowFull content
- P2402Evaporative Emission System Leak Detection Pump Control Circuit HighFull content
- P2403Evaporative Emission System Leak Detection Pump Sense Circuit/OpenFull content
- P2404Evaporative Emission System Leak Detection Pump Sense Circuit Range/PerformanceFull content
- P2405Evaporative Emission System Leak Detection Pump Sense Circuit LowFull content
- P2406Evaporative Emission System Leak Detection Pump Sense Circuit HighFull content
- P2407Evaporative Emission System Leak Detection Pump Sense Circuit Intermittent/ErraticFull content
- P2408Fuel Cap Sensor/Switch CircuitFull content
- P2409Fuel Cap Sensor/Switch Circuit Range/PerformanceFull content
- P240AEVAP System Leak Detection Pump Heater Control Circuit/OpenFull content
- P240BEVAP System Leak Detection Pump Heater Control Circuit LowFull content
- P240CEVAP System Leak Detection Pump Heater Control Circuit HighFull content
- P240DAlternative Fuel Low Pressure System LeakFull content
- P240EAlternative Fuel High Pressure System LeakFull content
- P240FEGR Slow ResponseFull content
- P2410Fuel Cap Sensor/Switch Circuit LowFull content
- P2411Fuel Cap Sensor/Switch Circuit HighFull content
- P2412Fuel Cap Sensor/Switch Circuit Intermittent/ErraticFull content
- P2413Exhaust Gas Recirculation System PerformanceFull content
- P2414O2 Sensor Exhaust Sample Error Bank 1 Sensor 1Full content
- P2415O2 Sensor Exhaust Sample Error Bank 2 Sensor 1Full content
- P2416O2 Sensor Signals Swapped Bank 1 Sensor 2 / Bank 1 Sensor 3Full content
- P2417O2 Sensor Signals Swapped Bank 2 Sensor 2 / Bank 2 Sensor 3Full content
- P2418Evaporative Emission System Switching Valve Control Circuit / OpenFull content
- P2419Evaporative Emission System Switching Valve Control Circuit LowFull content
- P241AO2 Sensor Signals Swapped Bank 1 Sensor 1/Bank 1 Sensor 2Full content
- P241BO2 Sensor Signals Swapped Bank 2 Sensor 1/Bank 2 Sensor 2Full content
- P241CThrottle Actuator Control System - Ice Blockage Bank 2Full content
- P241DSCR Inducement - Forced Engine ShutdownFull content
- P241EReductant Heater Coolant Control Valve Stuck ClosedFull content
- P241FEGR Cooler B Efficiency Below ThresholdFull content
- P2420Evaporative Emission System Switching Valve Control Circuit HighFull content
- P2421Evaporative Emission System Vent Valve Stuck OpenFull content
- P2422Evaporative Emission System Vent Valve Stuck ClosedFull content
- P2423HC Adsorption Catalyst Efficiency Below Threshold Bank 1Full content
- P2424HC Adsorption Catalyst Efficiency Below Threshold Bank 2Full content
- P2425Exhaust Gas Recirculation Cooling Valve Control Circuit/OpenFull content
- P2426Exhaust Gas Recirculation Cooling Valve Control Circuit LowFull content
- P2427Exhaust Gas Recirculation Cooling Valve Control Circuit HighFull content
- P2428Exhaust Gas Temperature Too High Bank 1Full content
- P2429Exhaust Gas Temperature Too High Bank 2Full content
- P242AExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3Full content
- P242BExhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3Full content
- P242CExhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3Full content
- P242DExhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3Full content
- P242EExhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 3Full content
- P242FDiesel Particulate Filter Restriction - Ash AccumulationFull content
- P2430Secondary Air Injection System Air Flow/Pressure Sensor CircuitFull content
- P2431Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issueFull content
- P2432Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issueFull content
- P2433Secondary Air Injection System Air Flow/Pressure Sensor Circuit HighFull content
- P2434Secondary Air Injection System Air Flow/Pressure Sensor Circuit Intermittent/ErraticFull content
- P2435Secondary Air Injection System Air Flow/Pressure Sensor CircuitFull content
- P2436Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/PerformanceFull content
- P2437Secondary Air Injection System Air Flow/Pressure Sensor Circuit LowFull content
- P2438Secondary Air Injection System Air Flow/Pressure Sensor Circuit HighFull content
- P2439Secondary Air Injection System Air Flow/Pressure Sensor Circuit Intermittent/ErraticFull content
Other systems
This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.