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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) >> ECO Switch Circuit [02/2019 - ] >> Procedure

ECO Switch Circuit [02/2019 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. READ VALUE USING TECHSTREAM (ECO SWITCH) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Air Conditioner / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > Air Conditioner > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      ECO Switch Integration control and panel assembly (ECO switch) OFF or ON ON: Integration control and panel assembly (ECO switch) being turned and held at ECO position
      OFF: Integration control and panel assembly (ECO switch) not turned      		 -

      Body Electrical > Air Conditioner > Data List 

      Tester Display
      ECO Switch

      OK

      Integration control and panel assembly (ECO switch) condition displayed on the Techstream changes with the actual switch operation.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    NG 

    See step  2

  2. INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY (ECO SWITCH) 
    1. Remove the integration control and panel switch assembly (ECO switch).

      Refer to REMOVAL [11/2018 - ]

    2. Inspect the integration control and panel switch assembly (ECO switch).

      Refer to INSPECTION [02/2019 - 08/2020] , or refer to INSPECTION [08/2020 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY (ECO SWITCH). Refer to  REMOVAL [11/2018 - ] 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY AND BODY GROUND) 
    1. Disconnect the G32 integration control and panel assembly (ECO switch) connector.
    2. Disconnect the G46 air conditioning amplifier assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G32-7 (ECU) - G46-11 (ECOS) Always Below 1 Ω
      G32-13 (GND) - Body ground Always Below 1 Ω
      G32-7 (ECU) or G46-11 (ECOS) - Other terminals and body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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