Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2009YARIS BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEWINDOWSWINDSHIELD/WINDOW GLASSPOWER WINDOW CONTROL SYSTEMHOW TO PROCEED WITH TROUBLESHOOTING
2009 Toyota Yaris Base, 4D Sedan, Automatic
How To Proceed With Troubleshooting
2009 Toyota Yaris Base, 4D Sedan, AutomaticSECTION How To Proceed With Troubleshooting
HINT:
- Use these procedures to troubleshoot the power window control system.
- VEHICLE BROUGHT TO WORKSHOPÂ
- INSPECT BATTERY VOLTAGEÂ
Standard voltage:Â
11 to 14 VÂ
If the voltage is below 11 V, recharge or replace the battery before proceeding.
- PROBLEM SYMPTOMS TABLEÂ
ResultÂ
RESULT REFERENCEResult Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B: Go to step  5
A: GO TO NEXT STEPÂ
- OVERALL ANALYSIS AND TROUBLESHOOTINGÂ
- Terminals of ECU (See TERMINALS OF ECUÂ )
- On-vehicle Inspection (See ON-VEHICLE INSPECTIONÂ )
- REPAIR OR REPLACEÂ
- CONFIRMATION TESTÂ
RENDER: 1.0x
NO RELATED
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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.