VW(SAIC) fault codes
Coverage shown is Volkswagen data: 3,421 codes · 292 vehicle records · 248 ECU records · 0 live-data parameters.
VW(SAIC) shares fault-code data with Volkswagen. Data may not cover VW(SAIC)-specific systems.
Codes 3,421
| Code | Description | Brands | System |
|---|---|---|---|
| P0414 | AIR System Switching Valve A Circuit Shorted | 31 | Powertrain |
| P0416 | AIR System Switching Valve B Circuit Open | 27 | Powertrain |
| P0417 | AIR System Switching Valve B Circuit Shorted | 26 | Powertrain |
| P0418 | AIR System Control A Circuit | 31 | Powertrain |
| P0419 | AIR System Control B Circuit | 27 | Powertrain |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) | 42 | Powertrain |
| P0421 | Warm Up Catalyst Efficiency Below Threshold (Bank 1) | 31 | Powertrain |
| P0422 | Main Catalyst Efficiency Below Threshold (Bank 1) | 33 | Powertrain |
| P0423 | Heated Catalyst Efficiency Below Threshold (Bank 1) | 26 | Powertrain |
| P0424 | Heated Catalyst Temperature Below Threshold (Bank 1) | 23 | Powertrain |
| P0429 | Catalyst Heater Control Circuit/Open (Bank 1) | 26 | Powertrain |
| P0430 | Catalyst System Efficiency Below Threshold (Bank 2) | 39 | Powertrain |
| P0431 | Warm Up Catalyst Efficiency Below Threshold (Bank 2) | 27 | Powertrain |
| P0432 | Catalyst 2 Efficiency Below Threshold (Bank 2) | 30 | Powertrain |
| P0433 | Heated Catalyst Efficiency Below Threshold (Bank 2) | 23 | Powertrain |
| P0434 | Heated Catalyst Temperature Below Threshold (Bank 2) | 23 | Powertrain |
| P0435 | Catalyst Temperature Sensor Circuit (Bank 2 Sensor 1) | 24 | Powertrain |
| P0439 | Catalyst Heater Control Circuit/Open (Bank 2) | 22 | Powertrain |
| P043E | Evaporative Emissions (EVAP) System Leak Detection Reference Orifice Low Flow | 28 | Powertrain |
| P043F | Evaporative Emissions (EVAP) System Leak Detection Reference Orifice High Flow | 28 | Powertrain |
| P0440 | Evaporative Emission Control System | 40 | Powertrain |
| P0441 | Evaporative Emission Control System Incorrect Purge Flow | 40 | Powertrain |
| P044100 | Fuel tank venting system. Flow rate erroneous | 3 | Powertrain |
| P0442 | Evaporative Emission Control System Leak Detected (Small Leak) | 43 | Powertrain |
| P044200 | Small leak detected in tank ventilation system | 1 | Powertrain |
| P0443 | Evaporative Emission Control System Purge Control Valve Circuit | 41 | Powertrain |
| P0444 | Evaporative Emission Control System Purge Control Valve Circuit Open | 36 | Powertrain |
| P0445 | Evaporative Emission Control System Purge Control Valve Circuit Shorted | 37 | Powertrain |
| P0446 | Evaporative Emission Control System Vent Control Circuit | 37 | Powertrain |
| P0447 | Evaporative Emission Control System Vent Control Circuit Open | 32 | Powertrain |
| P0448 | Evaporative Emission Control System Vent Control Circuit Shorted | 32 | Powertrain |
| P0450 | Evaporative Emission Control System Pressure Sensor | 37 | Powertrain |
| P0451 | Evaporative Emission Control System Pressure Sensor Range/Performance | 36 | Powertrain |
| P0452 | Evaporative Emission Control System Pressure Sensor Low Input | 38 | Powertrain |
| P0453 | Evaporative Emission Control System Pressure Sensor High Input | 36 | Powertrain |
| P0454 | Evaporative Emission Control System Pressure Sensor Intermittent | 31 | Powertrain |
| P0455 | Evaporative Emission Control System Leak Detected (Large Leak) | 41 | Powertrain |
| P045500 | Large leak detected in tank ventilation system | 2 | Powertrain |
| P0456 | Evaporative Emission Control System Leak Detected (Very Small Leak) | 43 | Powertrain |
| P045600 | Small leak detected in tank ventilation system | 1 | Powertrain |
| P0457 | Evaporative Emission Control System Leak Detected (Fuel Cap Loose/Off) | 37 | Powertrain |
| P045700 | Evaporative Emission Control System Leak Detected (Fuel Cap Loose/Off) | 1 | Powertrain |
| P0458 | EVAP System Purge Control Valve A Circuit Low | 36 | Powertrain |
| P0459 | EVAP System Purge Control Valve A Circuit High | 36 | Powertrain |
| P045A | EGR B Control Circuit | 28 | Powertrain |
| P0460 | Fuel Level Sensor Circuit | 38 | Powertrain |
| P0461 | Fuel Level Sensor Circuit Range/Performance | 38 | Powertrain |
| P0464 | Fuel Level Sensor Circuit Intermittent | 31 | Powertrain |
| P0465 | EVAP Purge Flow Sensor Circuit | 24 | Powertrain |
| P0466 | EVAP Purge Flow Sensor Circuit Range/Performance | 22 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.