Kia 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, Kia vehicles also use a set of diagnostic trouble codes (DTCs) to identify potential issues with various systems in the car. Kia, being a South Korean automotive manufacturer, uses sophisticated diagnostic systems to assist in diagnosing and troubleshooting problems. The specific codes can vary based on the Kia model, year, and the type of diagnostic system used. Here are some common Kia 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. P1120 - Throttle Position Sensor (TPS) Out of Range

17. P1121 - Throttle Position Sensor (TPS) Signal Inconsistent with Mass Airflow (MAF) Sensor Signal

18. P1130 - HO2S (Heated Oxygen Sensor) 11 (Bank 1 Sensor 1) Circuit Low

19. P1131 - HO2S (Heated Oxygen Sensor) 11 (Bank 1 Sensor 1) Circuit Low

20. P1132 - HO2S (Heated Oxygen Sensor) 11 (Bank 1 Sensor 1) Signal High

21. P1133 - HO2S (Heated Oxygen Sensor) 11 (Bank 1 Sensor 1) Signal High

22. P1150 - HO2S (Heated Oxygen Sensor) 21 (Bank 1 Sensor 1) Circuit Low

23. P1151 - HO2S (Heated Oxygen Sensor) 21 (Bank 1 Sensor 1) Signal High

24. P1200 - Fuel Pump Relay Circuit Problem

25. P1326 - Knock Sensor (KS) Circuit Range Performance Bank 1

26. P1330 - Spark Timing Adjust Signal

27. P1443 - Evaporative Emission Control System Control Valve

28. P1544 - Throttle Actuation Potentiometer Signal 1 Range/Performance

29. P1549 - Idle Speed Control Valve Opening Coil Voltage Low

30. P1552 - Electronic Throttle System (ETS) - TAC Motor Feedback Signal

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