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
Continuously Variable Transmission System DTCS
CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P0601 | 00: Internal Control Module Memory Check Sum Error |
| DTC P0601 | 47: Internal Control Module Memory Check Sum Error |
| DTC P0705 | 12: Transmission Range Sensor Circuit Malfunction (PRNDL Input) |
| DTC P0705 | 14: Transmission Range Sensor Circuit Malfunction (PRNDL Input) |
| DTC P0705 | 1C: Transmission Range Sensor Circuit Malfunction (PRNDL Input) |
| DTC P0706 | 61: Transmission Range Sensor Circuit Range/Performance |
| DTC P0706 | 96: Transmission Range Sensor Circuit Range/Performance |
| DTC P0711 | 00: Transmission Fluid Temperature Sensor 'A' Circuit Range/Performance |
| DTC P0712 | 00: Transmission Fluid Temperature Sensor 'A' Circuit Low Input |
| DTC P0713 | 00: Transmission Fluid Temperature Sensor 'A' Circuit High Input |
| DTC P0717 | 00: Input/Turbine Speed Sensor 'A' Circuit No Signal |
| DTC P0721 | 00: Secondary Pulley Speed Sensor Circuit Range/Performance |
| DTC P0722 | 00: Secondary Pulley Speed Sensor Circuit No Signal |
| DTC P0730 | 00: Incorrect Gear Ratio |
| DTC P0731 | 00: Gear 1 Incorrect Ratio |
| DTC P0741 | 00: Torque Converter Clutch Solenoid Valve Stuck Off |
| DTC P0743 | 00: Torque Converter Clutch Solenoid Valve Electrical |
| DTC P0748 | 00: Pressure Control Solenoid 'A' Electrical (Line Pressure) |
| DTC P0758 | 00: Shift Control Solenoid Valve 'B' (Clutch) Electrical |
| DTC P0778 | 00: Pressure Control Solenoid 'B' Electrical (Primary Pulley) |
| DTC P0791 | 00: Primary pulley Speed Sensor Circuit |
| DTC P0798 | 00: Pressure Control Solenoid 'C' Electrical (Secondary Pulley) |
| DTC P0845 | 00: Transmission Fluid Pressure Sensor/Switch 'B' Circuit |
| DTC P0846 | 00: Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance |
| DTC P0867 | 00: Transmission Fluid Pressure |
| DTC P0867 | F0: Transmission Fluid Pressure |
| DTC P0867 | F1: Transmission Fluid Pressure |
| DTC P0880 | 00: TCM Power Input Signal |
| DTC P0955 | 00: Auto Shift Manual Mode Circuit |
| DTC P1602 | 00: CVT No Learning & No EOL Data |
| DTC U0001 | 00: High Speed CAN Communication Bus |
| DTC U0100 | 00: Lost Communication with ECM/PCM 'A' |
Factory Service Tools
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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.
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