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Home >> Lexus >> 2011 >> IS 250 Base, RWD, Standard >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System (Diagnostics & Symptom Tests) >> Power Window Control System >> Symptom Tests >> Rear Power Window LH does not Operate with Rear Power Window Switch LH >> Procedure
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Rear Power Window LH does not Operate with Rear Power Window Switch LH: Procedure

  1. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Side) 
    1. Remove the power window regulator switch assembly (for rear LH side). Refer to REMOVAL .
      Fig 1: Identifying Power Window Regulator Switch Assembly (For Rear LH Side)
      GTY135749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      2 (U) - 5 (E) Auto up or up position Below 1 Ω
      10 (D) - 5 (E) Auto down or down position Below 1 Ω

    NG → See step   6 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (REGULATOR MOTOR - BATTERY AND BODY GROUND) 
    1. Measure the voltage according to the value(s) in the table below.
      Fig 2: Identifying O10 Connector Terminals
      GTY123072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Condition Specified Condition
      O10-2 (B) - Body ground Always 11 to 14 V
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      O10-1 (E) - Body ground Always Below 1 Ω

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (REAR LH SIDE SWITCH - REAR LH SIDE MOTOR AND BODY GROUND) 
    1. Disconnect the power window regulator motor assembly (for rear LH side) connector.
      Fig 3: Identifying O9 And O10 Connector Terminals
      GTY144474Courtesy 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
      O9-2 (U) - O10-10 (UP1) Always Below 1 Ω
      O9-10 (D) - O10-7 (DWN1) Always Below 1 Ω
      O9-5 (E) - Body ground Always Below 1 Ω
      O9-2 (U) - Body ground Always 10 kΩ or higher
      O9-10 (D) - Body ground Always 10 kΩ or higher
      O10-10 (UP1) - Body ground Always 10 kΩ or higher
      O10-7 (DWN1) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Side) 
    1. Replace the power window regulator motor assembly (for rear LH side). Refer to REMOVAL .

    NEXT: Go to next step 

  5. CHECK MANUAL UP/DOWN FUNCTION 
    1. Check that the rear LH side door power window moves when the manual up/down function of the power window regulator assembly (for rear LH side) is operated. Refer to OPERATION CHECK .

      OK

      Rear LH side manual up/down function is normal.

    NG → See step   7 

    OK → END (POWER WINDOW REGULATOR MOTOR ASSEMBLY IS DEFECTIVE) 

  6. REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH side). Refer to  REMOVAL 
  7. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY. Refer to  DISASSEMBLY - Step 2 
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