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HOMESERVICE MANUALSTOYOTA2013SIENNA LE, AWDREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSPOWER WINDOW CONTROL SYSTEM (DIAGNOSTIC CODES & SYMPTOM TESTS)POWER WINDOW CONTROL SYSTEMSYMPTOM TESTSDRIVER SIDE POWER WINDOW AUTO UP / DOWN FUNCTION DOES NOT OPERATE WITH POWER WINDOW MASTER SWITCHPROCEDURE
2013 Toyota Sienna LE, AWD

Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch: Procedure

2013 Toyota Sienna LE, AWDSECTION 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 (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY)

      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.

    NG → See step   7 

    OK: Go to next step 

  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.

    NG → See step   5 

    OK: Go to next step 

  3. PERFORM INITIALIZATION (for Driver Side) 
    1. Initialize the front power window regulator motor assembly LH. Refer to INITIALIZATION .

    NEXT: Go to next step 

  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 multiplex network master switch assembly is operated. Refer to OPERATION CHECK .

      OK

      Driver side auto up/down function is normal.

    NG → See step   8 

    OK → END (PROBLEM DUE TO INITIALIZATION FAILURE) 

  5. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 
    1. Replace the multiplex network master switch assembly. Refer to REMOVAL .

    NEXT: Go to next step 

  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 multiplex network master switch assembly is operated. Refer to OPERATION CHECK .

      OK

      Driver side auto up/down function is normal.

    NG → See step   8 

    OK → END (MULTIPLEX NETWORK MASTER SWITCH WAS DEFECTIVE) 

  7. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY. Refer to  REMOVAL 
  8. REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to  REMOVAL 
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.