VAG Group fault codes
Fault codes for Volkswagen Group vehicles, including VAG-specific 6-digit UDS codes read with VCDS and OBDeleven.
Covers: Volkswagen, Audi, Škoda, Seat, Cupra · Recommended tools: VCDS, OBDeleven, ODIS
VAG Group – P-Codes – Powertrain
- 16684Random/Multiple Cylinder Misfire Detected (Older VAG 5-Digit Code)On VAG vehicles, fault code 16684 (OBD2: P0300) means "Random/Multiple Cylinder Misfire Detected (Older VAG 5-Digit Code)". It is common…High
- 17544Long Term Fuel Trim Add. Air, Bank 1: System Too LeanOn VAG vehicles, fault code 17544 (OBD2: P1136) means "Long Term Fuel Trim Add. Air, Bank 1: System Too Lean". It is common on 1.8T (AEB,…Medium
- 17705Pressure Drop Between Turbocharger and Throttle ValveOn VAG vehicles, fault code 17705 (OBD2: P1297) means "Pressure Drop Between Turbocharger and Throttle Valve". It is common on 1.8T 20V…Medium
- 17748Crankshaft/Camshaft Position Sensor Signals Out of SequenceOn VAG vehicles, fault code 17748 (OBD2: P1340) means "Crankshaft/Camshaft Position Sensor Signals Out of Sequence". It is common on 1.8T…High
- 17964Charge Pressure Control: Negative Deviation (Underboost)On VAG vehicles, fault code 17964 (OBD2: P1556) means "Charge Pressure Control: Negative Deviation (Underboost)". It is common on 1.9 TDI…High
- 17965Charge Pressure Control: Positive Deviation (Overboost)On VAG vehicles, fault code 17965 (OBD2: P1557) means "Charge Pressure Control: Positive Deviation (Overboost)". It is common on 1.9 TDI…High
- 17978Engine Start Blocked by ImmobilizerOn VAG vehicles, fault code 17978 (OBD2: P1570) means "Engine Start Blocked by Immobilizer". It is common on Golf IV, Bora, Passat B5,…High
- 18010Power Supply Terminal 30 Voltage Too LowOn VAG vehicles, fault code 18010 (OBD2: P1602) means "Power Supply Terminal 30 Voltage Too Low". It is common on Most VAG petrol and…Medium
- P001600Crankshaft / Camshaft Position Correlation (Bank 1 Sensor A)On VAG vehicles, fault code P001600 (OBD2: P0016) means "Crankshaft / Camshaft Position Correlation (Bank 1 Sensor A)". It is common on…Critical
- P008700Fuel Rail/System Pressure Too LowOn VAG vehicles, fault code P008700 (OBD2: P0087) means "Fuel Rail/System Pressure Too Low". It is common on 2.0 TDI CR (CBAB, CFFB, CFHC,…High
- P017100System Too Lean (Bank 1) – TSI / TFSIOn VAG vehicles, fault code P017100 (OBD2: P0171) means "System Too Lean (Bank 1) – TSI / TFSI". It is common on 1.8 / 2.0 TSI EA888 Gen 2…Medium
- P0299Turbocharger / Supercharger 'A' Underboost ConditionFault code P0299 means "Turbocharger / Supercharger 'A' Underboost Condition". It is common on 2.0 TDI, 3.0 TDI, 1.4 Turbo engines. Below…High
- P030000Random/Multiple Cylinder Misfire Detected – TSI / TFSIOn VAG vehicles, fault code P030000 (OBD2: P0300) means "Random/Multiple Cylinder Misfire Detected – TSI / TFSI". It is common on 1.0 /…High
- P040100Exhaust Gas Recirculation (EGR) Flow Insufficient – 2.0 TDIOn VAG vehicles, fault code P040100 (OBD2: P0401) means "Exhaust Gas Recirculation (EGR) Flow Insufficient – 2.0 TDI". It is common on 2.0…Medium
- P157000Engine Control Module (ECM) Disabled by ImmobilizerOn VAG vehicles, fault code P157000 (OBD2: P1570) means "Engine Control Module (ECM) Disabled by Immobilizer". It is common on 2.0 TDI,…Critical
- P17BF00Hydraulic Pump Play Protection – 7-Speed DSG DQ200On VAG vehicles, fault code P17BF00 (OBD2: P17BF) means "Hydraulic Pump Play Protection – 7-Speed DSG DQ200". It is common on 7-speed DSG…High
- P200200Particulate Filter Efficiency Below Threshold – 2.0 TDIOn VAG vehicles, fault code P200200 (OBD2: P2002) means "Particulate Filter Efficiency Below Threshold – 2.0 TDI". It is common on 2.0 TDI…Medium
- P201500Intake Manifold Runner (Swirl Flap) Position Sensor Range/PerformanceOn VAG vehicles, fault code P201500 (OBD2: P2015) means "Intake Manifold Runner (Swirl Flap) Position Sensor Range/Performance". It is…Medium
- P20EE00SCR NOx Catalyst Efficiency Below Threshold – 2.0 TDI EA288On VAG vehicles, fault code P20EE00 (OBD2: P20EE) means "SCR NOx Catalyst Efficiency Below Threshold – 2.0 TDI EA288". It is common on 2.0…Medium
- P210000Throttle Actuator Control Motor Circuit / OpenOn VAG vehicles, fault code P210000 (OBD2: P2100) means "Throttle Actuator Control Motor Circuit / Open". It is common on 2.0 TDI (EA288),…High
- P246300Diesel Particulate Filter – Soot AccumulationOn VAG vehicles, fault code P246300 (OBD2: P2463) means "Diesel Particulate Filter – Soot Accumulation". It is common on 2.0 TDI CR (CBAB,…High
- P256300Turbocharger Boost Control Position Sensor: Implausible Signal – TDIOn VAG vehicles, fault code P256300 (OBD2: P2563) means "Turbocharger Boost Control Position Sensor: Implausible Signal – TDI". It is…High
VAG Group – U-Codes – Network / CAN Bus
- 00532Supply Voltage B+ Signal Too LowOn VAG vehicles, fault code 00532 means "Supply Voltage B+ Signal Too Low". Below are the real-world causes, step-by-step tests and OEM…Medium
- 00668Supply Voltage Terminal 30On VAG vehicles, fault code 00668 means "Supply Voltage Terminal 30". Below are the real-world causes, step-by-step tests and OEM part…Low
- 01044Control Module Incorrectly CodedOn VAG vehicles, fault code 01044 means "Control Module Incorrectly Coded". Below are the real-world causes, step-by-step tests and OEM…Low
- 01299Diagnostic Interface for Data Bus (J533)On VAG vehicles, fault code 01299 means "Diagnostic Interface for Data Bus (J533)". It is common on Golf V/VI, Passat B6/B7, Touran,…Low
- 01314Engine Control Module: No CommunicationOn VAG vehicles, fault code 01314 means "Engine Control Module: No Communication". Below are the real-world causes, step-by-step tests and…Medium
- 01316ABS Control Module: No CommunicationsOn VAG vehicles, fault code 01316 means "ABS Control Module: No Communications". It is common on Golf IV/V/VI, Passat B5/B6, Touran, Audi…High
- 18057Data Bus Powertrain: Missing Message from ABS Control ModuleOn VAG vehicles, fault code 18057 (OBD2: P1649) means "Data Bus Powertrain: Missing Message from ABS Control Module". It is common on Golf…Medium
- U045200Invalid Data Received From Restraints Control ModuleOn VAG vehicles, fault code U045200 (OBD2: U0452) means "Invalid Data Received From Restraints Control Module". Below are the real-world…Medium
- U112300Data Bus: Received Error ValueOn VAG vehicles, fault code U112300 (OBD2: U1123) means "Data Bus: Received Error Value". Below are the real-world causes, step-by-step…Low
VAG Group – B-Codes – Body
- 00588Airbag Igniter, Driver Side (N95)On VAG vehicles, fault code 00588 means "Airbag Igniter, Driver Side (N95)". It is common on Golf IV/V/VI, Passat B5/B6, Polo, Audi A3,…High
- 00819High Pressure Sensor (G65)On VAG vehicles, fault code 00819 means "High Pressure Sensor (G65)". It is common on Golf IV/V/VI, Passat B5/B6, Touran, Audi A3, A4, A6,…Low
VAG Group – C-Codes – Chassis
Generic OBD2 codes – also apply to VAG Group
These standard codes mean the same on every car, including VAG Group. VCDS and OBDeleven show them with two extra digits, e.g. P001100.
- P0011Intake Camshaft Position Timing – Over-Advanced (Bank 1)Fault code P0011 means "Intake Camshaft Position Timing – Over-Advanced (Bank 1)". Below are the real-world causes, step-by-step tests and…High
- P0087Fuel Rail/System Pressure Too LowFault code P0087 means "Fuel Rail/System Pressure Too Low". Below are the real-world causes, step-by-step tests and OEM part numbers.High
- P0101Mass Air Flow (MAF) Circuit Range/PerformanceFault code P0101 means "Mass Air Flow (MAF) Circuit Range/Performance". Below are the real-world causes, step-by-step tests and OEM part…Medium
- P0128Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)Fault code P0128 means "Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)". Below are the real-world…Low
- P0171System Too Lean (Bank 1)Fault code P0171 means "System Too Lean (Bank 1)". Below are the real-world causes, step-by-step tests and OEM part numbers.Medium
- P0234Turbocharger/Supercharger Overboost ConditionFault code P0234 means "Turbocharger/Supercharger Overboost Condition". Below are the real-world causes, step-by-step tests and OEM part…High
- P0300Random/Multiple Cylinder Misfire DetectedFault code P0300 means "Random/Multiple Cylinder Misfire Detected". Below are the real-world causes, step-by-step tests and OEM part…High
- P0335Crankshaft Position Sensor A Circuit MalfunctionFault code P0335 means "Crankshaft Position Sensor A Circuit Malfunction". Below are the real-world causes, step-by-step tests and OEM…Critical
- P0340Camshaft Position Sensor Circuit MalfunctionFault code P0340 means "Camshaft Position Sensor Circuit Malfunction". Below are the real-world causes, step-by-step tests and OEM part…High
- P0380Glow Plug/Heater Circuit A MalfunctionFault code P0380 means "Glow Plug/Heater Circuit A Malfunction". Below are the real-world causes, step-by-step tests and OEM part numbers.Medium
- P0401Exhaust Gas Recirculation Flow Insufficient DetectedFault code P0401 means "Exhaust Gas Recirculation Flow Insufficient Detected". Below are the real-world causes, step-by-step tests and OEM…Medium
- P0420Catalyst System Efficiency Below Threshold (Bank 1)Fault code P0420 means "Catalyst System Efficiency Below Threshold (Bank 1)". Below are the real-world causes, step-by-step tests and OEM…Medium
- P0505Idle Control System MalfunctionFault code P0505 means "Idle Control System Malfunction". Below are the real-world causes, step-by-step tests and OEM part numbers.Low
- P0700Transmission Control System MalfunctionFault code P0700 means "Transmission Control System Malfunction". Below are the real-world causes, step-by-step tests and OEM part numbers.Medium
- P2002Diesel Particulate Filter Efficiency Below Threshold (Bank 1)Fault code P2002 means "Diesel Particulate Filter Efficiency Below Threshold (Bank 1)". Below are the real-world causes, step-by-step…Medium