Audi · Porsche · Bentley · Lamborghini — fault codes starting with P04

157 fault codes starting with P04 on Audi · Porsche · Bentley · Lamborghini vehicles, with descriptions: P0400, P0401, P0402 and more.

Fault codes
157
Block
P04
Make group
Audi · Porsche · Bentley · Lamborghini
Source language
English

The 157 Audi · Porsche · Bentley · Lamborghini fault codes that start with P04, with descriptions.

CodeDescription
P0400Exhaust Gas Recirc."A" Flow
P0401Exhaust Gas Recirc.Flow Insufficient Detected
P0402Exhaust Gas Recirc.Flow Excessive Detected
P0403EGR "A" Control Circuit/Open Circuit Current Above Threshold
P0404Exhaust Gas Recirculation Circuit Range/Performance
P0405Exhaust Gas Recirculat.Sensor A Circuit Low
P0406Exhaust Gas Recirculat.Sensor A Circuit High
P0407EGR Sensor "B" Circuit Low
P0408EGR Sensor "B" Circuit High
P0409EGR Sensor "A" Circuit
P040AEGR Temperature Sensor "A" Circuit
P040BExhaust Gas Recirculation Temperature Sensor "A" Circuit Range/Performance
P040CExhaust Gas Recirculation Temperature Sensor "A" Circuit Low
P040DExhaust Gas Recirculation Temperature Sensor "A" Circuit High
P040FEGR Temperature Sensor "A"/"B" Correlation
P0410Sec.Air Inj.Sys. Malfunction
P0411Sec.Air Inj.Sys. Incorrect Flow Detected
P0413Sec.Air Inj.Sys.Switching Valve A Circ. Open
P0414Sec.Air Inj.Sys.Switching Valve A Circ. Shorted
P0415Sec.Air Inj.Sys.Switching Valve B Circ. Malfunction
P0416Sec.Air Inj.Sys.Switching Valve B Circ. Open
P0417Sec.Air Inj.Sys.Switching Valve B Circ. Shorted
P0418Sec. Air Injection System Relay A Circuit
P0419Sec. Air Injection System Relay B Circuit
P041BEGR Temperature Sensor "B" Circuit Range/Performance
P041FAIR System Switching Valve "A" Circuit Low
P0420Catalyst System Efficiency Below Threshold (Bank 1)
P0421Warm Up Catalyst, Bank1 Efficiency Below Threshold
P0425Catalyst Temperature Sensor Circuit
P0426Catalyst Temperature Sensor Circuit Range/Performance
P0427Catalyst Temperature Sensor Bank1 Low Input
P0429Catalyst Heater Control Circuit Bank 1
P042EEGR "A" Control Stuck Open
P042FEGR "A" Control Stuck Closed
P0430Catalyst System, Bank2 Efficiency Below Threshold
P043EEvaporative Emission System Leak Detection Reference Orifice Low Flow
P043FEvaporative Emission System Leak Detection Reference Orifice High Flow
P0440EVAP Emission Contr.Sys. Malfunction
P0441EVAP Emission Contr.Sys.Incorrect Purge Flow
P0442EVAP Emission Contr.Sys.(Small Leak) Leak Detected
P0443EVAP System Purge Control Valve "A" Circuit High
P0444EVAP System Purge Control Valve "A" Circuit Open
P0445EVAP System Purge Control Valve "A" Circuit Shorted
P0446EVAP System Vent Valve Control Circuit High
P0447EVAP System Vent Control Circuit Open
P0448EVAP System Vent Control Circuit Shorted
P0449EVAP System Vent Valve Control Circuit/Open
P044BEGR Sensor "C" Circuit Range/Performance
P044CEGR Sensor "C" Circuit Low
P044DEGR Sensor "C" Circuit High
P044FAIR System Switching Valve "A" Circuit High
P0450Lost Communication with EVAP System Pressure Sensor/Switch Circuit "A"
P0451Evaporative Emission System Pressure Sensor/Switch Range/Performance
P0452EVAP System Pressure Sensor/Switch "A" Circuit Low
P0453EVAP System Pressure Sensor/Switch "A" Circuit High
P0454EVAP System Pressure Sensor/Switch "A" Circuit Intermittent
P0455EVAP Emission Contr.Sys.(Gross Leak) Leak Detected
P0456EVAP Emission Contr. Sys. (very small Leak) Leak Detected
P0457Evaporative Emission System Leak Detected (fuel cap loose/off)
P0458EVAP System Purge Control Valve "A" Circuit Low
P0459EVAP System Purge Control Valve "A" Circuit High
P045AExhaust Gas Recirculation "B" Control Circuit
P045BExhaust Gas Recirculation "B" Control Circuit Range/Performance
P045CExhaust Gas Recirculation "B" Control Circuit Low
P045DExhaust Gas Recirculation "B" Control Circuit High
P045EExhaust Gas Recirculation "B" Control Stuck Open
P045FExhaust Gas Recirculation "B" Control Stuck Closed
P0460Fuel Level Sensor "A" Circuit Circuit Short To Ground
P0461Fuel Level Sensor "A" Circuit Range/Performance
P0462Fuel Level Sensor "A" Circuit Low
P0463Fuel Level Sensor "A" Circuit High
P046CExhaust Gas Recirculation Sensor "A" Circuit Range/Performance
P046EEGR Sensor "B" Circuit Range/Performance
P0470Exhaust Pressure Sensor "A" Circuit System Internal Failure
P0471Exhaust Pressure Sensor "A" Circuit Range/Performance
P0472Exhaust Pressure Sensor "A" Circuit Low
P0473Exhaust Pressure Sensor "A" Circuit High
P0474Exhaust Pressure Sensor "A" Circuit Intermittent/Erratic
P0475Exhaust Pressure Control Valve Pos. Sensor/Switch Circuit Range/Performance
P0476Exhaust Pressure Control Valve "A" Range/Performance
P0477Exhaust Pressure Control Valve "A" Low
P0478Exhaust Pressure Control Valve "A" High
P047AExhaust Pressure Sensor "B" Circuit
P047BExhaust Pressure Sensor "B" Range/Performance
P047CExhaust Pressure Sensor "B" Low
P047DExhaust Pressure Sensor "B" High
P047FExhaust Pressure Control Valve "A" Stuck Open
P0480OBD_M_Fan_Overload_OTHER_SYSTEM
P0481Cooling Fan 2 Control Circuit
P0482Fan 3 Control Circuit
P0486EGR Sensor "B" Circuit
P0488EGR Throttle Control Circuit "A" Range/Performance
P0489EGR "A" Control Circuit Low Circuit Short To Ground
P048AExhaust Pressure Control Valve "A" Stuck Closed
P048BExhaust Pressure Control Valve "A" Position Sensor/Switch Circuit/Open
P048CExhaust Pressure Control Valve Pos. Sensor/Switch Circuit Range/Performance
P048DExhaust flap sensor Short circuit to Ground (GND)
P048EExhaust Pressure Control Valve Pos. Sensor/Switch Circuit High
P0490EGR "A" Control Circuit High Circuit Short To Battery
P0491AIR System Insufficient Flow Bank 1
P0492AIR System Insufficient Flow Bank 2
P0494Lost Communication With Fan 1
P0495Fan 1 Overspeed
P0496EVAP System High Purge Flow
P0497Evaporative emission control system Low throughput
P0498EVAP System Vent Valve Control Circuit Low
P0499EVAP System Vent Valve Control Circuit High
P049AEGR "B" Flow
P049BEGR "B" Flow Insufficient Detected
P049CEGR "B" Flow Excessive Detected
P049DEGR "A" Control Position Exceeded Learning Limit Event Information
P049EExhaust Gas Recirculation "B" Control Position Exceeded Learning Limit
P049FExhaust Pressure Control Valve "B" Range/Performance
P04A0Exhaust Pressure Control Valve "B" Range/Performance
P04A1Exhaust Pressure Control Valve "B" Low
P04A2Exhaust Pressure Control Valve "B" High
P04A6Exhaust Pressure Control Valve "B" Position Sensor/Switch Circuit Range/Performance
P04A7Exhaust flap 2 sensor implausible signal
P04A8Exhaust flap 2 sensor Short circuit to Ground (GND)
P04A9Exhaust flap 2 sensor Short circuit to B+
P04ABEvaporative Emission System Purge Control Valve "B" Circuit/Open
P04ACEvaporative Emission System Purge Control Valve "B" Circuit Low
P04ADEvaporative Emission System Purge Control Valve "B" Circuit High
P04AEEVAP System Purge Control Valve "B" Stuck Open
P04AFEVAP System Purge Control Valve "B" Stuck Closed
P04B5Fuel Fill Door Stuck Open
P04B6Fuel Fill Door Stuck Closed
P04BFFuel Fill Door Unlock Control Range/Performance
P04C0Fuel Fill Door Unlock Control Range/Performance
P04C8Fuel Fill Door Open Request Sensor/Switch Circuit High
P04CAFuel Fill Door Open Request Sensor/Switch Circuit Low
P04CBFuel Fill Door Open Request Sensor/Switch Circuit High
P04CCFuel Fill Door Open Request Sensor/Switch Circuit Intermittent/Erratic
P04CDFuel Fill Door Open Request Sensor/Switch Stuck On
P04CEEGR Temperature Sensor "C" Circuit
P04CFEGR Temperature Sensor "C" Circuit Range/Performance
P04D0EGR Temperature Sensor "C" Circuit Low
P04DBCrankcase Ventilation System Disconnected
P04DDCold Start EGR "A" Flow Insufficient Detected
P04DECold Start EGR "A" Flow Excessive Detected
P04DFEVAP System Purge Control Valve "A" Performance/Stuck Open
P04E0EVAP System Purge Control Valve "A" Stuck Closed
P04EDEVAP System Large Leak Detected - Fresh Air Side
P04EEEVAP System Very Small Leak Detected - Fuel Tank Side
P04EFEVAP System Very Small Leak Detected - Fresh Air Side
P04F0EVAP system high pressure purge line performance
P04F1EVAP system low pressure purge line performance
P04F2Catalyst Heater Supply Voltage Bank 1
P04F3Catalyst Heater Supply Voltage Bank 2
P04F4Catalyst Heater Circuit Low Bank 1
P04F5Catalyst Heater Circuit Low Bank 2
P04F6Catalyst Heater Circuit High Bank 1
P04F7Catalyst Heater Circuit High Bank 2
P04F8Catalyst Heater Circuit Intermittent Bank 1
P04FAEGR "A" Control Temperature Too High
P04FBCrankcase ventilation connecting hose sensor Implausible signal
P04FECatalyst 1 Heater Circuit Performance Bank 1

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Code descriptions are shown in their source language; records without a translation stay raw. Source: CarCoding fault code database.

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