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Home >> Kia >> 2021 >> Rio LX >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Continuously Variable Transmission System Diagnosis >> DTC P0846-00: Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor the circuit (Check the open circuit and short circuit)
  • Open or short circuit
  • Faulty driven pulley pressure sensor
  • Faulty PCM
Enable Condition Case 1
  • Battery voltage is higher than 10V
  • Engine speed is higher than 350 RPM
  • Lever position in "D" or "Sports" (forward gear)
  • Oil temperature is higher than 0°C (32°F)
Case 2
  • Battery voltage is higher than 10V
  • Engine speed is higher than 350 RPM
  • Solenoid "ON"
  • APS is less than 0%
Threshold Value Case 1
  • The output voltage of the sensor is between 2.5V and 3.5V
Case 2
  • Difference between the target driven pulley pressure and the actual driven pulley pressure is higher than 4 bar
Detecting Time
  • 6s
Fail Safe
  • Limited learning
MIL ON Condition
  • 2 driving cycles