AIR CONDITIONING SYSTEM, Diagnostic DTC:B14BD

DTC Code DTC Name
B14BD Refrigerant Overabundance Filling Malfunction

DESCRIPTION

This DTC is stored when the amount of refrigerant is a certain value or more when in refrigerant filling mode. The heat pump ECU assembly judges whether the amount of refrigerant is appropriate or not using the output value of the discharge temperature sensor. If the amount of refrigerant is excessive, the heat pump ECU assembly stops the operation of the compressor with motor assembly. Also, when the power switch is turned off and then turned on (IG), the compressor with motor assembly remains stopped.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
B14BD Refrigerant Overabundance Filling Malfunction When refrigerant filling mode is ON, the amount of refrigerant is excessive for 5 seconds or more Air conditioning amplifier assembly

Memorized

(5 sec. or more)*

PROCEDURE


  1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM


    1. Recover the refrigerant from the air conditioning system using a refrigerant recovery unit.

      for HFC-134a (R134a): Click here

      for HFO-1234yf (R1234yf): Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT


    1. Charge the air conditioning system with refrigerant until it reaches the specified amount.

      for HFC-134a (R134a): Click here

      for HFO-1234yf (R1234yf): Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Air Conditioner > Trouble Codes
      Result
      Result Proceed to
      DTC B14BD is not output A
      DTC B14BD is output B

    A

    END

    B

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here