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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Window Motors & Regulators >> Power Window Control System - Diagnostic Codes & Symptom Tests >> Power Window Control System >> Rear Power Window RH does not Operate with Rear Power Window Switch RH [12/2019 - 11/2023] >> Procedure

Rear Power Window RH does not Operate with Rear Power Window Switch RH [12/2019 - 11/2023]: Procedure

  1. READ VALUE USING GTS (MAIN BODY) 
    1. Read the Data List according to the display on the GTS.

      Body Electrical > Main Body > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Communication RR-Door Motor Connection status between power window regulator motor assembly (for rear RH door) and main body ECU (multiplex network body ECU) STOP or OK STOP: Communication stopped
      OK: Normal communication
      -

      Body Electrical > Main Body > Data List 

      Tester Display
      Communication RR-Door Motor

      OK

      OK is displayed for each Data List item above.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 11/2023] 

    Result: 

    OK 

    See step  2

  2. READ VALUE USING GTS (RR-DOOR MOTOR) 
    1. Read the Data List according to the display on the GTS.

      Body Electrical > RR-Door Motor > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      RR Door P/W Up SW Rear RH door power window manual up switch signal OFF or ON OFF: Rear RH door power window manual up switch not being operated
      ON: Rear RH door power window manual up switch being operated
      -
      RR Door P/W Down SW Rear RH door power window manual down switch signal OFF or ON OFF: Rear RH door power window manual down switch not being operated
      ON: Rear RH door power window manual down switch being operated
      -

      Body Electrical > RR-Door Motor > Data List 

      Tester Display
      RR Door P/W Up SW
      RR Door P/W Down SW

      OK

      On the GTS screen, ON or OFF is displayed accordingly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  4

    Result: 

    OK 

    See step  3

  3. PERFORM ACTIVE TEST USING GTS (RR-DOOR MOTOR) 
    1. Perform the Active Test according to the display on the GTS.
      WARNING:

      Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function will not operate.

      Body Electrical > RR-Door Motor > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Power Window Power window OFF / DOWN / UP -

      Body Electrical > RR-Door Motor > Active Test 

      Tester Display
      Power Window

      OK

      Rear RH door power window operates normally.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

    Result: 

    NG 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

  4. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for RH Door) 

    Refer to INSPECTION [12/2019 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for RH Door). Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH (for RH Door) - POWER WINDOW REGULATOR MOTOR (for Rear RH Door) AND BODY GROUND) 
    1. Disconnect the K4 power window regulator motor assembly (for rear RH door) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-5 (UP) - K4-10 (UP) Always Below 1 Ω
      K2-5 (UP) or K4-10 (UP) - Body ground Always 10 kΩ or higher
      K2-4 (DOWN) - K4-7 (DOWN) Always Below 1 Ω
      K2-4 (DOWN) or K4-7 (DOWN) - Body ground Always 10 kΩ or higher
      K2-7 (GND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR