2012 Scion iQFACTORY OEM SERVICE PROCEDURE

Jam Protection Function does not Operate: Procedure

  1. PERFORM INITIALIZATION 
    1. Initialize the power window regulator motor. Refer to INITIALIZATION .
    2. Check if the power window auto up/down function operates. Refer to SYSTEM DESCRIPTION .

      OK

      Auto up/down function operates.

    NG → See step   2 

    OK → END (PROBLEM DUE TO INITIALIZATION FAILURE) 

  2. CHECK JAM PROTECTION FUNCTION OPERATING RANGE 
    1. Check if the jam protection function operates for applicable power window.

      HINT: 

      The jam protection function does not operate from the fully closed position of the door glass to 4 mm (0.157 in.) below that.

      OK

      Jam protection function operates.

      RESULT

      Result Proceed to
      OK A
      NG (Driver side power window) B
      NG (Passenger side power window) C

    B → See step   3 

    C → See step   4 

    A → END 

  3. REPLACE FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY LH. Refer to  DISASSEMBLY 
  4. REPLACE FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY RH. Refer to  DISASSEMBLY 
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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.