VAG Fault Codes & DTC List

Manufacturer and ECU-specific fault-code meanings. Check the stated ECU, model and code format against your diagnostic scan.

VAG fault codes — page 17
CodeMeaningApplicability
P0442EVAP Emission Control Sys: Small Leak OBD
P0442EVAP Emission Control Sys: Small Leak OEM
P0444EVAP Purge Control Valve (N80): Circuit Open DECIMAL
P0444EVAP Purge Control Valve (N80): Circuit Open OBD
P0444EVAP Purge Control Valve (N80): Circuit Open OEM
P0455EVAP System: Large Leak Detected DECIMAL
P0455EVAP System: Large Leak Detected OBD
P0455EVAP System: Large Leak Detected OEM
P0456EVAP System: Very Small Leak Detected DECIMAL
P0456EVAP System: Very Small Leak Detected OBD
P0456EVAP System: Very Small Leak Detected OEM
P0457EVAP System: Leak Detected (Check Fuel Cap!) DECIMAL
P0457EVAP System: Leak Detected (Check Fuel Cap!) OBD
P0457EVAP System: Leak Detected (Check Fuel Cap!) OEM
P0458Evap System Purge Control Valve (N80): Short to Ground DECIMAL
P0458Evap System Purge Control Valve (N80): Short to Ground OBD
P0458Evap System Purge Control Valve (N80): Short to Ground OEM
P0471Exhaust Pressure Sensor 1 (G450): Implausible Signal DECIMAL
P0471Exhaust Pressure Sensor 1 (G450): Implausible Signal OBD
P0471Exhaust Pressure Sensor 1 (G450): Implausible Signal OEM
P047F1 - Exhaust Pressure Control Valve: Stuck Open OBD
P047F1 - Exhaust Pressure Control Valve: Stuck Open OEM
P0480Coolant Fan Control Circuit 1: Electrical Malfunction DECIMAL
P0480Coolant Fan Control Circuit 1: Electrical Malfunction OBD
P0480Coolant Fan Control Circuit 1: Electrical Malfunction OEM
P0481Coolant Fan Control Circuit 2: Electrical Malfunction DECIMAL
P0481Coolant Fan Control Circuit 2: Electrical Malfunction OBD
P0481Coolant Fan Control Circuit 2: Electrical Malfunction OEM
P048AExhaust Pressure Control Valve 1: Stuck Closed DECIMAL
P048AExhaust Pressure Control Valve 1: Stuck Closed OBD
P0491Secondary Air Injection System: Bank 1 OBD
P0492Secondary Air Injection System: Bank 2 OBD
P0501Vehicle Speed Sensor (G22): Implausible Signal DECIMAL
P0501Vehicle Speed Sensor (G22): Implausible Signal OBD
P0501Vehicle Speed Sensor (G22): Implausible Signal OEM
P0507Idle Control System RPM: Higher than Expected. DECIMAL
P0507Idle Control System RPM: Higher than Expected. OBD
P0507Idle Control System RPM: Higher than Expected. OEM
P0513Immobilizer Incorrect Key DECIMAL
P0513Immobilizer Incorrect Key OBD
P0513Immobilizer Incorrect Key OEM
P052EPCV Valve Malfunction OBD
P052FControl Module for Glow Plugs: Implausible Voltage OBD
P0532A/C Refrigerant Pressure Sensor (G65): Short to Ground DECIMAL
P0532A/C Refrigerant Pressure Sensor (G65): Short to Ground OBD
P0532A/C Refrigerant Pressure Sensor (G65): Short to Ground OEM
P053FFuel Pressure too Low during Cold Start DECIMAL
P053FFuel Pressure too Low during Cold Start OBD
P0551Power Steering Pressure Sensor (F88): Implausible Signal DECIMAL
P0551Power Steering Pressure Sensor (F88): Implausible Signal OBD

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