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 P2096 | 00: Post Catalyst Fuel Trim System too Lean (Bank 1) |
| DTC P2097 | 00: Post Catalyst Fuel Trim System too Rich (Bank 1) |
| DTC P2101 | 00: Throttle Actuator Control Motor Circuit Range/Performance |
| DTC P2118 | 00: Throttle Actuator Control Motor Current Range/Performance |
| DTC P2119 | 00: Throttle Actuator Control Throttle Body Range/Performance |
| DTC P2122 | 00: Accelerator Position Sensor 1 Signal Circuit Low Input |
| DTC P2123 | 00: Accelerator Position Sensor 1 Signal Circuit High Input |
| DTC P2127 | 00: Accelerator Position Sensor 2 Signal Circuit Low Input |
| DTC P2128 | 00: Accelerator Position Sensor 2 Signal Circuit-High Input |
| DTC P2138 | 00: Accelerator Position Sensor 1 & 2 Signal Voltage Correlation |
| DTC P2147 | 00: Fuel Injector Group 'A' Supply Voltage Circuit Low |
| DTC P2148 | 00: Fuel Injector Group 'A' Supply Voltage Circuit High |
| DTC P2150 | 00: Fuel Injector Group 'B' Supply Voltage Circuit Low |
| DTC P2151 | 00: Fuel Injector Group 'B' Supply Voltage Circuit High |
| DTC P2159 | 00: Vehicle Speed Sensor 'B' Range/Performance(Wheel Speed Sensor) |
| DTC P2195 | 00: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 1) |
| DTC P2196 | 00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 1) |
| DTC P219C | 00: Cylinder 1 Air-Fuel Ratio Imbalance |
| DTC P219D | 00: Cylinder 2 Air-Fuel Ratio Imbalance |
| DTC P219E | 00: Cylinder 3 Air-Fuel Ratio Imbalance |
| DTC P219F | 00: Cylinder 4 Air-Fuel Ratio Imbalance |
| DTC P2227 | 00: Barometric Pressure Circuit Range/Performance |
| DTC P2228 | 00: Barometric Pressure Circuit Low Input |
| DTC P2229 | 00: Barometric Pressure Circuit High Input |
| DTC P2237 | 00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1) |
| DTC P2243 | 00: O2 Sensor Reference Voltage Circuit/Open (Bank 1 Sensor 1) |
| DTC P2251 | 00: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1) |
| DTC P2270 | 00: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2) |
| DTC P2271 | 00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2) |
| DTC P2297 | 00: O2 Sensor Out of Range During Deceleration - (Bank 1 Sensor 1) |
| DTC P2401 | 00: EVAP System Leak Detection Pump Control Circuit Low |
| DTC P2402 | 00: EVAP System Leak Detection Pump Control Circuit High |
| DTC P2414 | 00: O2 Sensor Exhaust Sample Error (Bank 1 Sensor 1) |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.