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Power Windows do not Operate at All: Procedure

  1. CHECK HARNESS AND CONNECTOR (POWER WINDOW POWER SOURCE) 
    1. Disconnect the power window master switch connector.
      Fig 1: Checking Power Window Master Switch I3 Connector Terminals
      GTY170846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      I3-6 (B) - Body ground Ignition switch ON 11 to 14 V

    NG → See step   4 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (POWER WINDOW MASTER SWITCH - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 2: Checking Power Window Master Switch I3 Connector Terminals
      GTY200188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      I3-1 (E)- Body ground Always Below 1 Ω

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   3 

  3. REPLACE POWER WINDOW MASTER SWITCH. Refer to  REMOVAL 
  4. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BODY GROUND) 
    1. Disconnect the instrument panel junction block connector.
      Fig 3: Checking Instrument Panel Junction Block 2E Connector Terminals
      GTY200286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      2E-17 (PWS) - Body ground Always Below 1 Ω

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)