2005 Scion tC AutomaticFACTORY OEM SERVICE PROCEDURE

Problem Symptoms Table

HINT:

Use the table shown below, to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

PROBLEM SYMPTOMS TABLE - POWER WINDOW CONTROL SYSTEM

Symptom Suspected Area
Power windows do not operate at all
  1. 3. AM1 fuse
  2. 4. GAUGE fuse
  3. 5. FL DOOR fuse
  4. 6. IG1 relay
  5. 7. Wire harness
  6. 8. Power window regulator master switch assy
AUTO UP/DOWN function does not operate on driver side
  1. Power window regulator master switch assy
  2. Wire harness
  3. Power window regulator motor assy LH (driver side)
AUTO UP/DOWN function does not operate on passenger side
  1. Power window regulator switch assy (passenger side)
  2. Wire harness
  3. Power window regulator motor assy RH (passenger side)
Manual UP/DOWN function does not operate on driver side
  1. Power window regulator master switch assy
  2. Wire harness
  3. Power window regulator motor assy RH (driver side)
Manual UP/DOWN function does not operate on passenger side
  1. FR DOOR fuse
  2. Power window regulator switch assy (passenger side)
  3. Power window regulator master switch assy
  4. Wire harness
  5. Power window regulator motor assy RH (passenger side)
Remote UP/DOWN function does not operate
  1. Power window regulator switch assy (passenger side)
  2. Power window regulator master switch assy
  3. Wire harness
AUTO UP operation does not fully close power window (jam protection function is activated)
  1. Power window regulator motor assy
  2. Front door window regulator sub-assy
  3. Door glass run
Jam protection function does not operate
  1. Power window regulator motor assy
  2. Power window regulator switch assy
Factory Service Tools

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When to See a Mechanic

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

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

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