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 P2422 | 00: EVAP System Vent Valve Stuck Closed |
| DTC P2422 | 00: Evaporative Emission System Vent Valve Stuck Closed |
| DTC P24B9 | 00: EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance |
| DTC P24BA | 00: EVAP System Leak Detection Pump Pressure Sensor Circuit Low |
| DTC P24BB | 00: EVAP System Leak Detection Pump Pressure Sensor Circuit High |
| DTC P24BC | 00: EVAP System Leak Detection Pump Pressure Sensor Circuit Intermittent |
| DTC P24BD | 00: EVAP System Leak Detection Pump Vacuum Switching Valve Control Circuit/Open |
| DTC P24BE | 00: EVAP System Leak Detection Pump Vacuum Switching Valve Control Circuit Low |
| DTC P24BF | 00: EVAP System Leak Detection Pump Vacuum Switching Valve Control Circuit High |
| DTC P24C0 | 00: EVAP System Leak Detection Pump Vacuum Switching Valve Stuck On |
| DTC P2540 | 00: Low Pressure Fuel System Sensor Circuit Range/Performance |
| DTC P2541 | 00: Low Pressure Fuel System Sensor Circuit Low |
| DTC P2542 | 00: Low Pressure Fuel System Sensor Circuit High |
| DTC P2600 | 00: Coolant Pump 'A' Control Circuit/Open |
| DTC P2601 | 00: Coolant Pump 'A' Control Circuit Range/Perfromance |
| DTC P2610 | 00: ECM/PCM Internal Engine Off Timer Performance |
| DTC P261F | 00: Coolant Pump 'A' Control Circuit Stuck On |
| DTC P2626 | 00: O2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 1) |
| DTC P26D0 | 00: Engine Coolant Pump Control Module System Voltage Low |
| DTC P26D1 | 00: Engine Coolant Pump Control Module System Voltage High |
| DTC P3190 | 00: Poor Engine Power |
| DTC U0001 | 00: High Speed CAN Communication Bus off (C-CAN) |
| DTC U0101 | 00: Lost Communication with TCM (C-CAN) |
| DTC U0109 | 00: Lost Communication With Fuel Pump Control Module |
| DTC U0110 | 00: Lost Communication with Drive Motor Control Module 'A' (C-CAN) |
| DTC U0111 | 00: Lost Communication With Battery Energy Control Module 'A' (C-CAN) |
| DTC U0293 | 00: Lost Communication With Hybrid Powertrain Control Module (C-CAN) |
| DTC U0456 | 00: Invalid Data Received From Coolant Temperature Control Module |
| DTC U1001 | 00: High Speed CAN Communication Bus (H-CAN) |
| DTC U1003 | 00: Lost Communication With TCM (H-CAN) |
| DTC U1004 | 00: Lost Communication with Hybrid Powertrain Control Module (H-CAN) |
| DTC U1008 | 00: Lost Communication With Radiator Shutter (Active Air Flap) (C-CAN) |
| DTC U1111 | 00: Lin Message Timeout with EBS |
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.