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.
2021 Kia Rio LXFACTORY OEM SERVICE PROCEDURE
DTC Index
DTC INDEX
| DTC | Description |
|---|---|
| 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 P21CF | 00: Cylinder 1 Injector 'B' Circuit/Open |
| DTC P21D0 | 00: Cylinder 2 Injector 'B' Circuit/Open |
| DTC P21D1 | 00: Cylinder 3 Injector 'B' Circuit/Open |
| DTC P21D2 | 00: Cylinder 4 Injector 'B' Circuit/Open |
| DTC P21DB | 00: Cylinder 1 Injector 'B' Circuit Low |
| DTC P21DC | 00: Cylinder 1 Injector 'B' Circuit High |
| DTC P21DE | 00: Cylinder 2 Injector 'B' Circuit Low |
| DTC P21DF | 00: Cylinder 2 Injector 'B' Circuit High |
| DTC P21E0 | 00: Cylinder 3 Injector 'B' Circuit Low |
| DTC P21E1 | 00: Cylinder 3 Injector 'B' Circuit High |
| DTC P21E2 | 00: Cylinder 4 Injector 'B' Circuit Low |
| DTC P21E3 | 00: Cylinder 4 Injector 'B' Circuit High |
| 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 Stuck Lean - Bank 1 Sensor 2 |
| DTC P2271 | 00: O2 Sensor Stuck Rich - Bank 1 Sensor 2 |
| DTC P2280 | 00: Air Flow Restriction/Air Leak Between Air Filter and MAF Bank 1 |
| DTC P2422 | 00: Evaporative Emission System Vent Valve Stuck Closed |
| DTC P25B0 | 00: Fuel Level Sensor 'A' Stuck |
| DTC P2626 | 00: O2 Sensor Pumping Current Trim Circuit/Open - Bank 1 Sensor 1 |
| DTC P2B58 | 00: Engine Coolant Flow Control Valve Motor Current High |
| DTC P2B59 | 00: Engine Coolant Flow Control Valve Control Circuit/Open |
| DTC P2B5D | 00: Engine Coolant Flow Control Valve Position Sensor Circuit |
| DTC P2B60 | 00: Engine Coolant Flow Control Valve Position Sensor Circuit Range/Performance |
| DTC U0001 | 00: High Speed CAN Communication Bus off (C-CAN) |
| DTC U0101 | 00: Lost Communication with TCM (C-CAN) |
| DTC U012D | 00: Lost Communication With Generator Control Module |
| DTC U04B1 | 00: Invalid Data Received From Battery Monitor Module |
| DTC U060F | 00: Lost Communication With Mass or Volume Air Flow Sensor 'A' |
| DTC U063F | 00: Lost Communication With Engine Coolant Flow Control Valve Position Sensor |
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.