Renault vehicles also use a set of diagnostic trouble codes (DTCs) to identify potential issues with various systems in the car.

As of my last update in September 2021, Renault vehicles also use a set of diagnostic trouble codes (DTCs) to identify potential issues with various systems in the car. Renault, being a major French car manufacturer, uses sophisticated diagnostic systems to help diagnose and troubleshoot problems. The specific codes can vary based on the Renault model, year, and the type of diagnostic system used. Here are some common Renault 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. P1000 - OBD-II Monitor Testing Incomplete

15. P1111 - Intake Valve Timing Control Solenoid Valve Circuit Bank 1

16. P1112 - Intake Valve Timing Control Solenoid Valve Circuit Bank 2

17. P1122 - Electric Throttle Control Function

18. P1126 - Throttle Control Motor Relay Circuit

19. P1130 - Swirl Control Valve Control Solenoid Valve

20. P1131 - Swirl Control Valve Position Sensor Bank 1

21. P1140 - Camshaft Position Sensor (CMP) Signal Low

22. P1141 - Camshaft Position Sensor (CMP) Signal Out of Range

23. P1143 - Air/Fuel Ratio (A/F) Sensor Range/Performance Problem (Bank 1 Sensor 1)

24. P1150 - Air/Fuel Ratio (A/F) Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1)

25. P1153 - Air/Fuel Ratio (A/F) Sensor Circuit Response Malfunction (Bank 2 Sensor 1)

26. P1200 - Fuel Pump Relay Circuit Problem

27. P1421 - Secondary Air Injection System, Bank 1 Flow Too Low

28. P1423 - Secondary Air Injection System, Bank 1 Insufficient Flow

29. P1424 - Secondary Air Injection System, Bank 2 Insufficient Flow

30. P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

Please note that the specific diagnostic trouble codes can vary based on the Renault model and the software version of the diagnostic system used. If you encounter any of these diagnostic codes on your Renault vehicle, it is recommended to have a qualified mechanic or Renault dealership diagnose and address the specific issue. Using professional diagnostic equipment ensures accurate readings and appropriate repairs.