Powertrain code range
P0400–P0499
100 published codes in this range. Every one links to a full explanation of what it means, what causes it, and what the repair usually costs.
- P0400MediumExhaust Gas Recirculation Flow Malfunction
- P0401MediumEGR Insufficient Flow Detected
- P0402MediumExhaust Gas Recirculation Flow Excessive Detected
- P0403MediumExhaust Gas Recirculation Control Circuit Malfunction
- P0404MediumExhaust Gas Recirculation Control Circuit Range/Performance
- P0405MediumExhaust Gas Recirculation Sensor 'A' Circuit Low
- P0406MediumExhaust Gas Recirculation Sensor 'A' Circuit High
- P0407MediumExhaust Gas Recirculation Sensor 'B' Circuit Low
- P0408MediumExhaust Gas Recirculation Sensor 'B' Circuit High
- P0409MediumExhaust Gas Recirculation Sensor 'A' Circuit
- P0410LowSecondary Air Injection System Malfunction
- P0411LowSecondary Air Injection System Incorrect Flow Detected
- P0412LowSecondary Air Injection System Switching Valve A Circuit Malfunction
- P0413LowSecondary Air Injection System Switching Valve A Circuit Open
- P0414LowSecondary Air Injection System Switching Valve A Circuit Shorted
- P0415LowSecondary Air Injection System Switching Valve B Circuit Malfunction
- P0416LowSecondary Air Injection System Switching Valve B Circuit Open
- P0417LowSecondary Air Injection System Switching Valve B Circuit Shorted
- P0418LowSecondary Air Injection System Relay A Circuit Malfunction
- P0419LowSecondary Air Injection System Relay 'B' Circuit Malfunction
- P0420MediumCatalyst System Efficiency Below Threshold (Bank 1)
- P0421MediumWarm Up Catalyst Efficiency Below Threshold (Bank 1)
- P0422MediumMain Catalyst Efficiency Below Threshold (Bank 1)
- P0423MediumHeated Catalyst Efficiency Below Threshold (Bank 1)
- P0424MediumHeated Catalyst Temperature Below Threshold (Bank 1)
- P0425MediumCatalyst Temperature Sensor (Bank 1)
- P0426MediumCatalyst Temperature Sensor Range/Performance (Bank 1)
- P0427MediumCatalyst Temperature Sensor Low Input (Bank 1)
- P0428MediumCatalyst Temperature Sensor High Input (Bank 1)
- P0429MediumCatalyst Heater Control Circuit (Bank 1)
- P0430MediumCatalyst System Efficiency Below Threshold (Bank 2)
- P0431MediumWarm Up Catalyst Efficiency Below Threshold (Bank 2)
- P0432MediumCatalyst System Efficiency Below Threshold (Bank 2)
- P0433MediumHeated Catalyst Efficiency Below Threshold (Bank 2)
- P0434MediumHeated Catalyst Temperature Below Threshold (Bank 2)
- P0435MediumCatalyst Temperature Sensor (Bank 2)
- P0436MediumCatalyst Temperature Sensor Range/Performance (Bank 2)
- P0437MediumCatalyst Temperature Sensor Low Input (Bank 2)
- P0438MediumCatalyst Temperature Sensor High Input (Bank 2)
- P0439MediumCatalyst Heater Control Circuit (Bank 2)
- P0440LowEvaporative Emission Control System Malfunction
- P0441LowEVAP System Incorrect Purge Flow
- P0442LowEvaporative Emission System — Small Leak Detected
- P0443LowEvaporative Emission System Purge Control Valve Circuit
- P0444LowEvaporative Emission System Purge Control Valve Circuit Open
- P0445LowEvaporative Emission System Purge Control Valve Circuit Shorted
- P0446LowEvaporative Emission System Vent Control Circuit Malfunction
- P0447LowEvaporative Emission System Vent Control Circuit Open
- P0448LowEvaporative Emission System Vent Control Circuit Shorted
- P0449LowEVAP Vent Solenoid Control Circuit Malfunction
- P0450LowEvaporative Emission System Pressure Sensor/Switch Malfunction
- P0451LowEvaporative Emission System Pressure Sensor/Switch Range/Performance
- P0452LowEvaporative Emission System Pressure Sensor/Switch Low
- P0453LowEvaporative Emission System Pressure Sensor/Switch High
- P0454LowEvaporative Emission System Pressure Sensor Intermittent
- P0455LowEvaporative Emission System — Large Leak Detected
- P0456LowEVAP System Very Small Leak Detected
- P0457LowEvaporative Emission System Leak Detected (Fuel Cap Loose/Off)
- P0458LowEvaporative Emission System Purge Control Valve Circuit Low
- P0459LowEvaporative Emission System Purge Control Valve Circuit High
- P0460LowFuel Level Sensor "A" Circuit
- P0461LowFuel Level Sensor 'A' Circuit Range/Performance
- P0462LowFuel Level Sensor 'A' Circuit Low
- P0463LowFuel Level Sensor 'A' Circuit High
- P0464LowFuel Level Sensor 'A' Circuit Intermittent
- P0465LowEVAP Purge Flow Sensor Circuit Malfunction
- P0466LowEVAP Purge Flow Sensor Circuit Range/Performance
- P0467LowEVAP Purge Flow Sensor Circuit Low Input
- P0468LowEVAP Purge Flow Sensor Circuit High Input
- P0469LowEVAP Purge Flow Sensor Circuit Intermittent
- P0470MediumExhaust Pressure Sensor 'A' Circuit Malfunction
- P0471MediumExhaust Pressure Sensor 'A' Circuit Range/Performance
- P0472MediumExhaust Pressure Sensor 'A' Circuit Low Input
- P0473MediumExhaust Pressure Sensor 'A' Circuit High Input
- P0474MediumExhaust Pressure Sensor 'A' Circuit Intermittent/Erratic
- P0475MediumExhaust Pressure Control Valve 'A' Malfunction
- P0476MediumExhaust Pressure Control Valve 'A' Range/Performance
- P0477MediumExhaust Pressure Control Valve 'A' Low
- P0478MediumExhaust Pressure Control Valve 'A' High
- P0479MediumExhaust Pressure Control Valve 'A' Intermittent
- P0480HighCooling Fan Relay 1 Control Circuit
- P0481HighCooling Fan 2 Control Circuit
- P0482HighCooling Fan 3 Control Circuit
- P0483HighCooling Fan Rationality Check Failed
- P0484HighCooling Fan Circuit Over Current
- P0485HighCooling Fan Power/Ground Circuit Malfunction
- P0486MediumExhaust Gas Recirculation Sensor "B" Circuit
- P0487MediumExhaust Gas Recirculation Throttle Control Circuit "A" Open
- P0488MediumExhaust Gas Recirculation Throttle Position Control Range/Performance
- P0489MediumExhaust Gas Recirculation "A" Control Circuit Low
- P0490MediumExhaust Gas Recirculation "A" Control Circuit High
- P0491LowSecondary Air Injection System Insufficient Flow Bank 1
- P0492LowSecondary Air Injection System Insufficient Flow Bank 2
- P0493MediumFan Overspeed
- P0494HighFan Speed Low
- P0495LowFan Speed High
- P0496LowEvaporative Emission System Flow During Non-Purge Condition
- P0497LowEvaporative Emission System Low Purge Flow
- P0498LowEvaporative Emission System Vent Valve Control Circuit Low
- P0499LowEvaporative Emission System Vent Valve Control Circuit High