LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2010 >> IS F >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control (Diagnostic Codes & Symptom Tests) >> Power Window Control System >> Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH: Procedure

  1. CHECK DTC OUTPUT 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
    2. Recheck for DTCs.

      Result

      Result Proceed to
      No DTCs output A
      DTC B2311 is output B
      DTC B2312 is output C
      DTC B2313 is output D

    D → See step   9 

    C → See step   8 

    B → See step   7 

    A: Go to next step 

  2. READ VALUE USING TECHSTREAM (RL-Door Motor) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / RL-Door Motor / Data List.
    5. Read the Data List according to the display on the Techstream.
      RL-DOOR MOTOR (POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR REAR LH SIDE))

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

      OK

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

    NG → See step   3 

    OK → See step   5 

  3. CHECK HARNESS AND CONNECTOR (REAR LH SIDE SWITCH - REAR LH SIDE MOTOR) 
    1. Disconnect the power window regulator switch assembly (for rear LH side) connector.
    2. Disconnect the power window regulator motor assembly (for rear LH side) connector.
      Fig 1: Checking Harness And Connector Between Rear LH Side Switch And Rear LH Side Motor
      GTY141124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      O9-4 (A) - O10-4 (AUTO) Always Below 1 Ω
      O9-4 (A) - Body ground Always 10 kΩ or higher
      O10-4 (AUTO) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. 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 2: Inspecting Power Window Regulator Switch Assembly (For Rear LH Side)
      GTY135745Courtesy 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
      4 (A) - 5 (E) Auto up or auto down position Below 1 Ω

    NG → See step   6 

    OK → See step   5 

  5. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Side). Refer to  REMOVAL 
  6. REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Side). Refer to  REMOVAL 
  7. GO TO DTC (B2311). Refer to  DTC B2311: Power Window Motor Malfunction  
  8. GO TO DTC (B2312). Refer to  DTC B2312: Power Window Switch Malfunction  
  9. GO TO DTC (B2313). Refer to  DTC B2313: Glass Position Initialization Incomplete