K120F (CVT) Continuously Variable Transaxle System

2025 Toyota Corolla Cross L, FWDSECTION K120F (CVT) Continuously Variable Transaxle System
CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Code Description
P0335-31 Crankshaft Position Sensor "A" No Signal
P0607-47 Control Module Performance Bank 1 Watchdog/Safety MCU Failure
P0613-47 TCM Processor Watchdog/Safety MCU Failure
P062F-44 Internal Control Module EEPROM Data Memory Failure
P0703-12 Brake Switch "B" Circuit Short to Battery
P0705-13 Transmission Range Sensor "A" Circuit Open
P0705-62 Transmission Range Sensor "A" Signal Compare Failure
P0710-00 Transmission Fluid Temperature Sensor "A" Circuit Range/Performance
P0710-11 Transmission Fluid Temperature Sensor "A" Circuit Short To Ground
P0710-15 Transmission Fluid Temperature Sensor "A" Circuit Short to Battery or Open
P0715-12 Input/Turbine Speed Sensor "A" Circuit Short to Battery
P0715-14 Input/Turbine Speed Sensor "A" Circuit Short to Ground or Open
P0715-31 Input/Turbine Speed Sensor "A" No Signal
P0720-12 Output Speed Sensor Circuit Short to Battery
P0720-14 Output Speed Sensor Circuit Short to Ground or Open
P0720-31 Output Speed Sensor No Signal
P0745-12 Pressure Control Solenoid "A" Circuit Short to Battery
P0745-14 Pressure Control Solenoid "A" Circuit Short to Ground or Open
P0745-7F Pressure Control Solenoid "A" Actuator Stuck Off
P0775-12 Pressure Control Solenoid "B" Circuit Short to Battery
P0775-14 Pressure Control Solenoid "B" Circuit Short to Ground or Open
P0775-7F Pressure Control Solenoid "B" Actuator Stuck Off
P0840-00 Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance
P0840-11 Transmission Fluid Pressure Sensor/Switch "A" Circuit Short To Ground
P0840-15 Transmission Fluid Pressure Sensor/Switch "A" Circuit Short To Battery or Open
P08C3-12 Pressure Control Solenoid "M" Circuit Short to Battery
P08C3-14 Pressure Control Solenoid "M" Circuit Short to Ground or Open
P08C3-7F Pressure Control Solenoid "M" Actuator Stuck Off
P0914-00 Gear Shift Position Circuit Range/Performance
P0914-12 Gear Shift Position Circuit Short to Battery
P0914-14 Gear Shift Position Circuit Short to Ground or Open
P1702-9F AT Solenoids Operation Shutdown Circuit Stuck Off
P1703-00 AT Solenoid Output Malfunction
P2745-12 Intermediate Shaft Speed Sensor "B" Circuit Short to Battery
P2745-14 Intermediate Shaft Speed Sensor "B" Circuit Short to Ground or Open
P2745-31 Intermediate Shaft Speed Sensor "B" No Signal
P2749-12 Intermediate Shaft Speed Sensor "C" Circuit Short to Battery
P2749-14 Intermediate Shaft Speed Sensor "C" Circuit Short to Ground or Open
P2749-31 Intermediate Shaft Speed Sensor "C" No Signal
P2756-00 Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off
P2756-12 Torque Converter Clutch Pressure Control Solenoid Control Circuit Short to Battery
P2756-14 Torque Converter Clutch Pressure Control Solenoid Control Circuit Short to Ground or Open
P2756-7E Torque Converter Clutch Pressure Control Solenoid Control Actuator Stuck On
P281F-00 Pressure Control Solenoid "J" Performance/Stuck Off (2 Trip Detected)
P281F-12 Pressure Control Solenoid "J" Circuit Short to Battery
P281F-14 Pressure Control Solenoid "J" Circuit Short to Ground or Open
P281F-71 Pressure Control Solenoid "J" Performance/Stuck Off Actuator Stuck
P2828-12 Pressure Control Solenoid "K" Circuit Short to Battery
P2828-14 Pressure Control Solenoid "K" Circuit Short to Ground or Open
P2828-7F Pressure Control Solenoid "K" Actuator Stuck Off
U0100-87 Lost Communication with ECM/PCM "A" Missing Message
U0129-87 Lost Communication With Brake System Control Module Missing Message
U1103-87 Lost Communication with Stop and Start Control Module Missing Message
RENDER: 1.0x

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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.