- P0478Exhaust Pressure Control Valve HighFull content
- P0479Exhaust Pressure Control Valve IntermittentFull content
- P047AExhaust Pressure Sensor B CircuitFull content
- P047BExhaust Pressure Sensor B Circuit Range/PerformanceFull content
- P047CExhaust Pressure Sensor B Circuit LowFull content
- P047DExhaust Pressure Sensor B Circuit HighFull content
- P047EExhaust Pressure Sensor B Circuit Intermittent/ErraticFull content
- P047FExhaust Pressure Control Valve A Stuck OpenFull content
- P0480Exhaust Pressure Control Valve IntermittentFull content
- P0481Cooling Fan 2 Control Circuit MalfunctionFull content
- P0482Cooling Fan 3 Control Circuit MalfunctionFull content
- P0483Cooling Fan Rationality Check MalfunctionFull content
- P0484Cooling Fan Circuit Over CurrentFull content
- P0485Cooling Fan Power/Ground Circuit MalfunctionFull content
- P0486Exhaust Gas Recirculation Sensor B CircuitFull content
- P0487Exhaust Gas Recirculation Throttle Position Control CircuitFull content
- P0488Exhaust Gas Recirculation Throttle Position Control Range/PerformanceFull content
- P0489Exhaust Gas Recirculation Control Circuit LowFull content
- P048AExhaust Pressure Control Valve A Stuck ClosedFull content
- P048BExhaust Pressure Control Valve A Position Sensor/Switch CircuitFull content
- P048CExhaust Pressure Control Valve A Position Sensor/Switch Circuit Range/PerformanceFull content
- P048DExhaust Pressure Control Valve A Position Sensor/Switch Circuit LowFull content
- P048EExhaust Pressure Control Valve A Position Sensor/Switch Circuit HighFull content
- P048FExhaust Pressure Control Valve A Position Sensor/Switch Circuit Intermittent/ErraticFull content
- P0490Exhaust Gas Recirculation Control Circuit LowFull content
- P0491Secondary Air Injection System (Bank 2)Full content
- P0492Secondary Air Injection System (Bank 2)Full content
- P0493Fan Overspeed (clutch locked)Full content
- P0494Fan Speed LowFull content
- P0495Fan Speed HighFull content
- P0496Evaporative Emission System High Purge FlowFull content
- P0497Evaporative Emission System Low Purge FlowFull content
- P0498Evaporative Emission System Vent Control Circuit LowFull content
- P0499Evaporative Emission System Vent Control Circuit HighFull content
- P049AGas RecirculationBFlowFull content
- P049BGas RecirculationBFlow Insufficient DetectedFull content
- P049CGas RecirculationBFlow Excessive DetectedFull content
- P049DGas RecirculationAControl Position Exceeded Learning LimitFull content
- P049EGas RecirculationBControl Position Exceeded Learning LimitFull content
- P049FExhaust Pressure Control Valve BFull content
- P04A0Exhaust Pressure Control Valve B Range/PerformanceFull content
- P04A1Exhaust Pressure Control Valve B LowFull content
- P04A2Exhaust Pressure Control Valve B HighFull content
- P04A3Exhaust Pressure Control Valve B IntermittentFull content
- P04A4Exhaust Pressure Control Valve B Stuck OpenFull content
- P04A5Exhaust Pressure Control Valve B Stuck ClosedFull content
- P04A6Exhaust Pressure Control Valve B Position Sensor/Switch CircuitFull content
- P04A7Exhaust Pressure Control Valve B Position Sensor/Switch Circuit Range/PerformanceFull content
- P04A8Exhaust Pressure Control Valve B Position Sensor/Switch Circuit LowFull content
- P04A9Exhaust Pressure Control Valve B Position Sensor/Switch Circuit HighFull content
- P04AAExhaust Pressure Control Valve B Position Sensor/Switch Circuit Intermittent/ErraticFull content
- P04ABEVAP System Purge Control Valve B Circuit/OpenFull content
- P04ACEVAP System Purge Control Valve B Circuit LowFull content
- P04ADEVAP System Purge Control Valve B Circuit HighFull content
- P04AEEVAP System Purge Control Valve B Performance/Stuck OpenFull content
- P04AFEVAP System Purge Control Valve B Stuck ClosedFull content
- P04B0Refueling Vapor Control Valve Circuit/OpenFull content
- P04B1Refueling Vapor Control Valve Circuit LowFull content
- P04B2Refueling Vapor Control Valve Circuit HighFull content
- P04B3Refueling Vapor Control Valve Stuck Performance/Stuck OpenFull 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.