Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001FPGQ
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 - 02/2019]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): UTILITY; 2019 MY RAV4 HV [11/2018 - 02/2019]

UTILITY

REFRIGERANT HIGH PRESSURE HISTORY CLEAR

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Air Conditioner / Utility / Refrigerant High Pressure History Clear.

Body Electrical > Air Conditioner > Utility

Tester Display

Refrigerant High Pressure History Clear

REFRIGERANT SHORTAGE CHECK USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Air Conditioner / Utility / Refrigerant Gas Volume Check.

Body Electrical > Air Conditioner > Utility

Tester Display

Refrigerant Gas Volume Check

(e) Check that the following conditions are met and perform the refrigerant shortage check according to the display on the Techstream.

Measurement Condition:

Item

Condition

Vehicle Condition

Power switch on (READY)

A/C Switch

On

Ambient Temperature*1

0 to 49°C (32 to 120°F)

Air Conditioning Air Inlet Temperature*2

25 to 35°C (77 to 95°F)

Set Temperature

MAX COLD

Recirculation/fresh Control Switch

Recirculation

Air Vent Damper Position

FACE

Blower Speed

HI

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

Corrective Action

Refrigerant shortage

Insufficient
  1. Check for refrigerant leaks using a halogen leak detector, and repair if necessary.
  2. Evacuate the air conditioning system and charge it with the appropriate volume of new or purified refrigerant.
    • for HFC-134a (R134a): 2019 - 2020 MY RAV4 RAV4 HV [11/2018 - 08/2020]; HEATING / AIR CONDITIONING: REFRIGERANT (for HFC-134a(R134a)): REPLACEMENT
    • for HFO-1234yf (R1234yf): 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; HEATING / AIR CONDITIONING: REFRIGERANT (for HFO-1234yf(R1234yf)): REPLACEMENT

Refrigerant correct

Correct

-

Refrigerant incorrect

Incorrect

Confirm check condition and carry out again