Front Window Fogging [11/2018 - 02/2019]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (READY).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Air Conditioner / Utility / Refrigerant Gas Volume Check.

   Body Electrical > Air Conditioner > Utility 

   Tester Display
   Refrigerant Gas Volume Check

5. Prepare the vehicle according to the table below.
   MEASUREMENT CONDITION:
   
   

   Item	Condition
   Vehicle Condition	Power switch on (READY)
   Doors	Fully closed (windows also fully closed)
   A/C Switch	On
   Recirculation/fresh Control Switch	Recirculation
   Set Temperature	MAX COLD
   Blower Speed	HI
   Air Conditioning Air Inlet Temperature	25 to 35°C (77 to 95°F)

   HINT: 

   • Refer to the Techstream operator's manual for further details.
   • A message indicating a refrigerant shortage is displayed on the Techstream and the air conditioning system turns off if the amount of refrigerant in the system is insufficient.
   • DTCs are not stored when performing the refrigerant shortage check using the Techstream.
   • *1: This inspection can be judged correctly only if the ambient temperature is within a range of 0 to 49°C (32 to 120°F). Therefore, postpone the test if the temperature is low.
   • *2: This inspection can be judged correctly only if the air inlet temperature is within a range of 25 to 35°C (77 to 95°F). Therefore, postpone the test if the temperature is out of range.

   Result

   Result	Amount of Refrigerant
   Refrigerant shortage	Insufficient or leakage
   Refrigerant correct	Correct

   OK

   "Refrigerant correct" is displayed on the Techstream.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

CHARGE SYSTEM WITH REFRIGERANT 

1. for HFC-134a (R134a): Refer to REPLACEMENT [11/2018 - 08/2020]
2. for HFO-1234yf (R1234yf): Refer to REPLACEMENT [11/2018 - 02/2019]

Result: 

OK 

See step  2

1. When the MODE switch on the air conditioning control assembly is pushed, check that the air conditioning system changes DEF mode according to the switch operation.

   OK

   Air conditioning system changes DEF mode.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

GO TO ON-VEHICLE INSPECTION (CHECK REFRIGERANT PRESSURE USING GAUGE). Refer to  PROCEDURE - Step 2 

Result: 

NG 

GO TO DTC B1443. Refer to  DTC B1443: Air Outlet Damper Control Servo Motor Circuit [11/2018 - 02/2019]