As of my last update in September 2021, Volkswagen vehicles also use a set of diagnostic trouble codes (DTCs) to identify potential issues with various systems in the car. Volkswagen, being a renowned German automotive manufacturer, typically uses advanced diagnostic systems to assist in diagnosing and troubleshooting problems. The specific codes can vary based on the Volkswagen model, year, and the type of diagnostic system used. Here are some common Volkswagen diagnostic trouble codes:
1. P0101 - Mass or Volume Air Flow Circuit Range/Performance Problem
2. P0171 - System Too Lean (Bank 1)
3. P0172 - System Too Rich (Bank 1)
4. P0300 - Random/Multiple Cylinder Misfire Detected
5. P0301 - Cylinder 1 Misfire Detected
6. P0302 - Cylinder 2 Misfire Detected
7. P0303 - Cylinder 3 Misfire Detected
8. P0304 - Cylinder 4 Misfire Detected
9. P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
10. P0430 - Catalyst System Efficiency Below Threshold (Bank 2)
11. P0442 - Evaporative Emission System Leak Detected (Small Leak)
12. P0455 - Evaporative Emission System Leak Detected (Gross Leak)
13. P0507 - Idle Control System RPM Higher Than Expected
14. P1111 - Intake Valve Timing Control Solenoid Valve Circuit Bank 1
15. P1112 - Intake Valve Timing Control Solenoid Valve Circuit Bank 2
16. P1122 - Electric Throttle Control Function
17. P1126 - Throttle Control Motor Relay Circuit
18. P1130 - Swirl Control Valve Control Solenoid Valve
19. P1131 - Swirl Control Valve Position Sensor Bank 1
20. P1140 - Mass or Volume Air Flow Circuit Range/Performance Problem
21. P1141 - Load Calculation Cross Check Range/Performance
22. P1151 - Load Calculation Cross Check Range/Performance
23. P1176 - O2 Correction Behind Catalyst B1 Limit Attained
24. P1177 - O2 Correction Behind Catalyst B2 Limit Attained
25. P1200 - Fuel Pump Relay Circuit Problem
26. P1296 - Throttle Valve Control Part-Throttle Stop Position Performance
27. P130A - Exhaust Gas Recirculation (EGR) System Bank 1 - Sensor A (G450) Stuck
28. P130B - Exhaust Gas Recirculation (EGR) System Bank 1 - Sensor A (G450) Electrical Malfunction
29. P1602 - Power Supply (B+) Terminal 30 Low Voltage
30. P1649 - Diagnostic Module Tank Leakage (DM-TL) Pump Too High During Switching
Please note that the specific diagnostic trouble codes can vary based on the Volkswagen model and the software version of the diagnostic system used. If you encounter any of these diagnostic codes on your Volkswagen vehicle, it is recommended to have a qualified mechanic or Volkswagen dealership diagnose and address the specific issue. Using professional diagnostic equipment ensures accurate readings and appropriate repairs.
