Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Toyota >> 2021 >> Tacoma TRD Pro, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System (W/ Jam Protection) - Diagnostic Codes & Symptom Tests >> POWER WINDOW CONTROL SYSTEM (w/ Jam Protection Function) >> Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch [08/2015 - ] >> Procedure

Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch [08/2015 - ]: Procedure

  1. READ VALUE USING TECHSTREAM (MASTER 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 / Master switch / Data List.
    5. Read the Data List according to the display on the Techstream.
      MASTER SWITCH

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door P/W Auto SW Driver side power window auto up/down switch signal / ON or OFF ON: Driver side power window auto switch operated
      OFF: Driver side power window auto switch not operated
      -

      OK

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

    Result: 

    NG 

    REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 

    (Refer to DISASSEMBLY [08/2015 - 08/2016] , or refer to DISASSEMBLY [08/2016 - 11/2017] , or refer to DISASSEMBLY [11/2017 - ] )

    Result: 

    OK 

    See step  2

  2. READ VALUE USING TECHSTREAM (D-DOOR MOTOR) 
    1. Enter the following menus: Body Electrical / D-Door Motor / Data List.
    2. Read the Data List according to the display on the Techstream.
      D-DOOR MOTOR (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH)

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door P/W Auto SW Driver side power window auto up/down switch signal / ON or OFF ON: Driver side power window auto switch operated
      OFF: Driver side power window auto switch not operated
      -

      OK

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

    Result: 

    NG 

    See step  5

    Result: 

    OK 

    See step  3

  3. PERFORM INITIALIZATION (for Driver Side) 
    1. Initialize the front power window regulator motor assembly LH (Refer to INITIALIZATION [08/2015 - ] ).

    Result: 

    NEXT 

    See step  4

  4. CHECK POWER WINDOW CONTROL SYSTEM (AUTO UP/DOWN FUNCTION) 
    1. Check that the driver side door power window moves when the auto up/down function of the power window regulator master switch assembly is operated (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - ] ).

      OK

      Driver side auto up/down function is normal.

    Result: 

    OK 

    END (PROBLEM DUE TO INITIALIZATION FAILURE) 

    Result: 

    NG 

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 

    (Refer to PROCEDURE - Step 19 [08/2015 - 08/2016] , or refer to PROCEDURE - Step 19 [08/2016 - 11/2017] , or refer to PROCEDURE - Step 19 [11/2017 - ] )

  5. REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    1. Replace the power window regulator master switch assembly (Refer to DISASSEMBLY [08/2015 - 08/2016] , or refer to DISASSEMBLY [08/2016 - 11/2017] , or refer to DISASSEMBLY [11/2017 - ] ).

    Result: 

    NEXT 

    See step  6

  6. CHECK AND REPLACE POWER WINDOW CONTROL SYSTEM (AUTO UP/DOWN FUNCTION) 
    1. Check that the driver side door power window moves when the auto up/down function of the power window regulator master switch assembly is operated (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - ] ).

      OK

      Driver side auto up/down function is normal.

    Result: 

    OK 

    END (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 

    (Refer to PROCEDURE - Step 19 [08/2015 - 08/2016] , or refer to PROCEDURE - Step 19 [08/2016 - 11/2017] , or refer to PROCEDURE - Step 19 [11/2017 - ] )