VAG Fault Codes & DTC List
Manufacturer and ECU-specific fault-code meanings. Check the stated ECU, model and code format against your diagnostic scan.
| Code | Meaning | Applicability |
|---|---|---|
| P0442 | EVAP Emission Control Sys: Small Leak | OBD |
| P0442 | EVAP Emission Control Sys: Small Leak | OEM |
| P0444 | EVAP Purge Control Valve (N80): Circuit Open | DECIMAL |
| P0444 | EVAP Purge Control Valve (N80): Circuit Open | OBD |
| P0444 | EVAP Purge Control Valve (N80): Circuit Open | OEM |
| P0455 | EVAP System: Large Leak Detected | DECIMAL |
| P0455 | EVAP System: Large Leak Detected | OBD |
| P0455 | EVAP System: Large Leak Detected | OEM |
| P0456 | EVAP System: Very Small Leak Detected | DECIMAL |
| P0456 | EVAP System: Very Small Leak Detected | OBD |
| P0456 | EVAP System: Very Small Leak Detected | OEM |
| P0457 | EVAP System: Leak Detected (Check Fuel Cap!) | DECIMAL |
| P0457 | EVAP System: Leak Detected (Check Fuel Cap!) | OBD |
| P0457 | EVAP System: Leak Detected (Check Fuel Cap!) | OEM |
| P0458 | Evap System Purge Control Valve (N80): Short to Ground | DECIMAL |
| P0458 | Evap System Purge Control Valve (N80): Short to Ground | OBD |
| P0458 | Evap System Purge Control Valve (N80): Short to Ground | OEM |
| P0471 | Exhaust Pressure Sensor 1 (G450): Implausible Signal | DECIMAL |
| P0471 | Exhaust Pressure Sensor 1 (G450): Implausible Signal | OBD |
| P0471 | Exhaust Pressure Sensor 1 (G450): Implausible Signal | OEM |
| P047F | 1 - Exhaust Pressure Control Valve: Stuck Open | OBD |
| P047F | 1 - Exhaust Pressure Control Valve: Stuck Open | OEM |
| P0480 | Coolant Fan Control Circuit 1: Electrical Malfunction | DECIMAL |
| P0480 | Coolant Fan Control Circuit 1: Electrical Malfunction | OBD |
| P0480 | Coolant Fan Control Circuit 1: Electrical Malfunction | OEM |
| P0481 | Coolant Fan Control Circuit 2: Electrical Malfunction | DECIMAL |
| P0481 | Coolant Fan Control Circuit 2: Electrical Malfunction | OBD |
| P0481 | Coolant Fan Control Circuit 2: Electrical Malfunction | OEM |
| P048A | Exhaust Pressure Control Valve 1: Stuck Closed | DECIMAL |
| P048A | Exhaust Pressure Control Valve 1: Stuck Closed | OBD |
| P0491 | Secondary Air Injection System: Bank 1 | OBD |
| P0492 | Secondary Air Injection System: Bank 2 | OBD |
| P0501 | Vehicle Speed Sensor (G22): Implausible Signal | DECIMAL |
| P0501 | Vehicle Speed Sensor (G22): Implausible Signal | OBD |
| P0501 | Vehicle Speed Sensor (G22): Implausible Signal | OEM |
| P0507 | Idle Control System RPM: Higher than Expected. | DECIMAL |
| P0507 | Idle Control System RPM: Higher than Expected. | OBD |
| P0507 | Idle Control System RPM: Higher than Expected. | OEM |
| P0513 | Immobilizer Incorrect Key | DECIMAL |
| P0513 | Immobilizer Incorrect Key | OBD |
| P0513 | Immobilizer Incorrect Key | OEM |
| P052E | PCV Valve Malfunction | OBD |
| P052F | Control Module for Glow Plugs: Implausible Voltage | OBD |
| P0532 | A/C Refrigerant Pressure Sensor (G65): Short to Ground | DECIMAL |
| P0532 | A/C Refrigerant Pressure Sensor (G65): Short to Ground | OBD |
| P0532 | A/C Refrigerant Pressure Sensor (G65): Short to Ground | OEM |
| P053F | Fuel Pressure too Low during Cold Start | DECIMAL |
| P053F | Fuel Pressure too Low during Cold Start | OBD |
| P0551 | Power Steering Pressure Sensor (F88): Implausible Signal | DECIMAL |
| P0551 | Power Steering Pressure Sensor (F88): Implausible Signal | OBD |
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