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 |
|---|---|---|
| P1411 | Secondary Air Injection System; Bank 2: Insufficient Flow | OEM |
| P1420 | Secondary Air Injection Solenoid Valve (N112): Electr. Malfunction | DECIMAL |
| P1420 | Secondary Air Injection Solenoid Valve (N112): Electr. Malfunction | OBD |
| P1420 | Secondary Air Injection Solenoid Valve (N112): Electr. Malfunction | OEM |
| P1421 | Secondary Air Injection Solenoid Valve (N112): Short to Ground | DECIMAL |
| P1421 | Secondary Air Injection Solenoid Valve (N112): Short to Ground | OBD |
| P1421 | Secondary Air Injection Solenoid Valve (N112): Short to Ground | OEM |
| P1422 | Secondary Air Injection Solenoid Valve (N112): Short to Plus | DECIMAL |
| P1422 | Secondary Air Injection Solenoid Valve (N112): Short to Plus | OBD |
| P1422 | Secondary Air Injection Solenoid Valve (N112): Short to Plus | OEM |
| P1423 | Secondary Air Injection System; Bank 1: Insufficient Flow | DECIMAL |
| P1423 | Secondary Air Injection System; Bank 1: Insufficient Flow | OBD |
| P1423 | Secondary Air Injection System; Bank 1: Insufficient Flow | OEM |
| P1424 | Secondary Air Injection System; Bank 1: Leak Detected | DECIMAL |
| P1424 | Secondary Air Injection System; Bank 1: Leak Detected | OBD |
| P1424 | Secondary Air Injection System; Bank 1: Leak Detected | OEM |
| P1426 | EVAP Purge Valve (N80): Open Circuit | DECIMAL |
| P1426 | EVAP Purge Valve (N80): Open Circuit | OBD |
| P1426 | EVAP Purge Valve (N80): Open Circuit | OEM |
| P1429 | Circuit for Brake Vacuum Pump: Open Circuit | OBD |
| P1429 | Circuit for Brake Vacuum Pump: Open Circuit | OEM |
| P1432 | Secondary Air Injection Solenoid Valve (N112): Open Circuit | DECIMAL |
| P1432 | Secondary Air Injection Solenoid Valve (N112): Open Circuit | OBD |
| P1432 | Secondary Air Injection Solenoid Valve (N112): Open Circuit | OEM |
| P1433 | Secondary Air Pump Relay (J299): Open Circuit | DECIMAL |
| P1433 | Secondary Air Pump Relay (J299): Open Circuit | OBD |
| P1433 | Secondary Air Pump Relay (J299): Open Circuit | OEM |
| P1434 | Secondary Air Pump Relay (J299): Short to Plus | DECIMAL |
| P1434 | Secondary Air Pump Relay (J299): Short to Plus | OBD |
| P1434 | Secondary Air Pump Relay (J299): Short to Plus | OEM |
| P1435 | Secondary Air Pump Relay (J299): Short to Ground | DECIMAL |
| P1435 | Secondary Air Pump Relay (J299): Short to Ground | OBD |
| P1435 | Secondary Air Pump Relay (J299): Short to Ground | OEM |
| P1436 | Secondary Air Pump Relay (J299): Electrical Malfunction | DECIMAL |
| P1436 | Secondary Air Pump Relay (J299): Electrical Malfunction | OBD |
| P1436 | Secondary Air Pump Relay (J299): Electrical Malfunction | OEM |
| P1443 | DECIMAL | |
| P1443 | OBD | |
| P1443 | OEM | |
| P1455 | Exhaust Gas Temp Sensor 1 (G235): Implausible Signal | OBD |
| P1455 | Exhaust Gas Temp Sensor 1 (G235): Implausible Signal | OEM |
| P1458 | Exhaust Gas Temp Sensor 2 (G236): Short to Ground | DECIMAL |
| P1458 | Exhaust Gas Temp Sensor 2 (G236): Short to Ground | OBD |
| P1458 | Exhaust Gas Temp Sensor 2 (G236): Short to Ground | OEM |
| P1473 | EVAP Leak Detection Pump: Open Circuit | DECIMAL |
| P1473 | EVAP Leak Detection Pump: Open Circuit | OBD |
| P1473 | EVAP Leak Detection Pump: Open Circuit | OEM |
| P1475 | EVAP Leak Detection Pump: Malfunction/No Signal | DECIMAL |
| P1475 | EVAP Leak Detection Pump: Malfunction/No Signal | OBD |
| P1475 | EVAP Leak Detection Pump: Malfunction/No Signal | OEM |
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