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DTC B14BD: Refrigerant Overabundance Filling Malfunction [12/2019 - 10/2022]: Description

This DTC is stored if the amount of refrigerant in the air conditioning system exceeds a threshold. The air conditioning amplifier assembly judges whether the amount of refrigerant is appropriate based on the detected refrigerant pressure and cooler compressor assembly operation current. If the amount of refrigerant in the system is determined to have exceeded a threshold, operation of the cooler compressor assembly will be stopped, and will remain stopped even if the ignition switch is turned off and then the engine is restarted.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
B14BD Refrigerant Overabundance Filling Malfunction All of the following conditions are met 2 times or more in the same trip:
  • The vehicle speed is 20 km/h or more
  • The amount of compressor oil is within the insufficient compressor oil range for 60 seconds or more
  • Refrigerant volume
  • Air conditioning amplifier assembly
 Memorized
(60 sec. or more)*

*: The air conditioning amplifier assembly stores this DTC if the malfunction has occurred for the period of time indicated in the brackets.

GTY759455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
*a Electric Current (mA) *b Refrigerant Pressure kPa (kgf/cm2 , psi)
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