Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2020 Kia Optima Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE
DTC Index
DTC INDEX
| DTC | Description |
|---|---|
| DTC P0489 | 00: Exhaust Gas Recirculation Control Circuit Low |
| DTC P0490 | 00: Exhaust Gas Recirculation Control Circuit High |
| DTC P049D | 00: EGR 'A' Control Position Exceeded Learning Limit |
| DTC P04ED | 00: EVAP System Large Leak Detected - Fresh Air Side |
| DTC P04EF | 00: EVAP System Very Small Leak Detected - Fresh Air Side |
| DTC P0504 | 00: Brake Switch 'A'/'B' Correlation |
| DTC P0506 | 00: Idle Air Control System-RPM Lower than Expected |
| DTC P0507 | 00: Idle Air Control System-RPM Higher than Expected |
| DTC P050A | 00: Cold Start Idle Air Control System Performance |
| DTC P050B | 00: Cold Start Ignition Timing Performance |
| DTC P0532 | 00: A/C Refrigerant Pressure Sensor 'A' Circuit Low Input |
| DTC P0533 | 00: A/C Refrigerant Pressure Sensor 'A' Circuit High Input |
| DTC P0560 | 00: System Voltage |
| DTC P0562 | 00: System Voltage Low |
| DTC P0563 | 00: System Voltage High |
| DTC P0605 | 00: Internal Control Module Read Only Memory(ROM) Error |
| DTC P0606 | 00: ECM/PCM Processor |
| DTC P0607 | 00: Control Module Performance |
| DTC P061A | 00: Internal Control Module Torque Performance |
| DTC P061B | 00: Internal Control Module Torque Calculation Performance |
| DTC P061C | 00: Internal Control Module Engine RPM Performance |
| DTC P062B | 00: Internal Control Module Fuel Injector Control Performance |
| DTC P0630 | 00: VIN Not Programmed or Incompatible-ECM/PCM |
| DTC P0638 | 00: Throttle Actuator Control Range/Performance |
| DTC P0642 | 00: Sensor Reference Voltage 'A' Circuit Low |
| DTC P0643 | 00: Sensor Reference Voltage 'A' Circuit High |
| DTC P064A | 00: Fuel Pump Control Module |
| DTC P064D | 00: Internal Control Module O2 Sensor Processor Performance Bank 1 |
| DTC P0652 | 00: Sensor Reference Voltage 'B' Circuit Low |
| DTC P0653 | 00: Sensor Reference Voltage 'B' Circuit High |
| DTC P0698 | 00: Sensor Reference Voltage 'C' Circuit Low |
| DTC P0699 | 00: Sensor Reference Voltage 'C' Circuit High |
| DTC P06A4 | 00: Sensor Reference Voltage 'D' Circuit Low |
| DTC P06A5 | 00: Sensor Reference Voltage 'D' Circuit High |
| DTC P1160 | 00: Duration of the key off is too shot |
| DTC P1230 | 00: Low Pressure Fuel Pump malfunction |
| DTC P1233 | 00: Low Pressure Fuel System - High deviation between target and current pressure |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.