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.
2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Front Passenger Door Control System
WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM INDEX (POWER WINDOW CONTROL SYSTEM)
| Symptom | Perform Test |
|---|---|
| Front Passenger Door Power Window Does Not Operate | TEST NO. 68Β |
| Front Passenger Door Power Window Glass Does Not Move | TEST NO. 69Β |
SYMPTOM INDEX (POWER DOOR LOCK CONTROL SYSTEM)
| Symptom | Perform Test |
|---|---|
| Power Door Lock System Does Not Operate At All | TEST NO. 70Β |
| Power Door Lock System Does Not Operate When Using Manual Switch | TEST NO. 71Β |
| Power Door Lock System Does Not Operate When Using Key In External Door Lock Cylinder | TEST NO. 72Β |
| Driver Door Two-Operation Unlock Function Does Not Operate | TEST NO. 73Β |
| Key Confinement Prevention Function Does Not Operate | TEST NO. 74Β |
| Only One Power Door Lock Does Not Operate | TEST NO. 75Β |
| Automatic Door Lock/Unlock System Does Not Operate | TEST NO. 76Β |
SYMPTOM INDEX (POWER MIRROR CONTROL SYSTEM) (1)
| Symptom | Perform Test | ||||
|---|---|---|---|---|---|
| Power Mirror Does Not Operate | (2) | ||||
| Power Mirror Operates Abnormally | (2) | ||||
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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:
- 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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