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Home >> Toyota >> 2022 >> RAV4 LE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 55 (Heating / Air Conditioning System (HV) - Diagnostic Codes (3 Of 3) & Symptom Tests) >> AIR CONDITIONING SYSTEM (for HV Model) >> Recirculated/Fresh Air Modes do not Switch [11/2018 - 02/2019] >> Procedure

Recirculated/Fresh Air Modes do not Switch [11/2018 - 02/2019]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY 
    1. Check that the No. 1 blower damper servo sub-assembly is installed correctly.

      OK

      No. 1 blower damper servo sub-assembly is installed correctly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REINSTALL NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY. Refer to  REASSEMBLY [11/2018 - ] 

    Result: 

    OK 

    See step  2

  2. CHECK FOR DTC 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - 02/2019]

      Body Electrical > Air Conditioner > Trouble Codes 

      OK

      DTC B1442 is not output

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO DTC B1442. Refer to  DTC B1442: Air Inlet Damper Control Servo Motor Circuit [11/2018 - 02/2019] 

    Result: 

    OK 

    See step  3

  3. READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List.
    5. Read the Data List according to the display on the Techstream.

      Powertrain > Engine > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Coolant Temperature Engine coolant temperature Min.: -40°C (-40°F), Max.: 140°C (284°F) 75 to 100°C (167 to 212°F): After warming up This is the engine coolant temperature.
      HINT: 
      • After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F).
      • After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal.
      • If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted.
      • Check if the engine overheats if the value indicated is higher than 135°C (275°F).

      Powertrain > Engine > Data List 

      Tester Display
      Coolant Temperature

      OK

      The value of the display does not change frequently.

      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 COOLING SYSTEM. Refer to  ON-VEHICLE INSPECTION [11/2018 - 02/2019]