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.
2007 Lexus SC 430FACTORY OEM SERVICE PROCEDURE
Body & Frame: Windows: Windshield/WINDOWGLASS
- Power Window Control System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Customize Parameters
- Initialization
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- DTC Check / Clear
- Fail-Safe Chart
- Data List / Active Test
- Diagnostic Trouble Code Chart
- On-Vehicle Inspection
- DTC B1221 Power Window Switch Circuit on Driver Door
- DTC B1223 Power Window Switch Circuit on Passenger Door
- DTC B1231 Jam Protection Limit Switch Circuit on Driver Door; DTC B1232 Jam Protection Pulse Switch Circuit on Driver Door
- DTC B1233 Jam Protection Limit Switch Circuit on Passenger Door; DTC B1234 Jam Protection Pulse Switch Circuit on Passenger Door
- Remote Up / Down Function does not Operate
- Driver Side Power Window does not Operate with Power Window Master Switch
- Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch
- All Power Windows do not Operate with Driver Side Door Key Cylinder or Wireless Transmitter
- Power Window can be Operated After Ignition Switch is Turned OFF Even if Operative Conditions are not Met
- Auto Up Operation does not Fully Close Power Window (Jam Protection Function is Activated)
- Driver Side Door ECU Power Source Circuit
- Front Passenger Side Door ECU Power Source Circuit
- Power Window Master Switch
- Front Passenger Side Power Window Switch
- Power Window Regulator Motor
- Windshield Glass
- Rear Quarter Window Motor
- Back Window Glass
- Window Defogger System
- Defogger Relay
- Window Defogger Wire
- Quarter Window Glass
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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