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.
2002 Lexus SC 430FACTORY OEM SERVICE PROCEDURE
Light Control: Notes
WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Sensitivity adjustment can hardly be confirmed. Check by driving the customer's vehicle.
LIGHT CONTROL CUSTOMIZE PARAMETERS
| DISPLAY (ITEM) | DEFAULT | CONTENTS | SETTING |
|---|---|---|---|
| LIGHT OFF DELAY (Light auto OFF delay) | 30 s | Keeps the headlamps on for a certain period of time after closing all the doors when the ignition switch is turned on, the light control switch is in the HEAD or AUTO position, and the headlamps are on. | OFF / 30 s / 60 s / 90 S |
| LIGHT CTRL TYPE (Control Type) | CURRENT | Changes the control logic when the light control switch is in the AUTO position. Refer to the ILLUSTRATION OF . | CURRENT/OLD |
| RESPONSE TIME (Response time) | 0.15 s | Changes the delay timing of the taillamp when entering a tunnel with the light control switch in the AUTO position. | 1.0 s/0.15 s |
| DISP EX ON SEN (Display extinction luminous intensity) | NORMAL | Changes the brightness when lowering lights such as the combination meter indicator lamp, A/C indicator lamp, and clock lamp. Refer to the ILLUSTRATION OF . | DARK2/DARK1 /NORMAL / LIGHT1 / LIGHT2 |
| DISP EX OFF SEN (Display extinction release luminous intensity) | NORMAL | Changes the brightness when lowering lights such as the combination meter indicator lamp, A/C indicator lamp, and clock lamp. Refer to the ILLUSTRATION OF . | DARK2 / DARK1 / NORMAL / LIGHT1 / LIGHT2 |
| DRL FUNCTION (DRL function) | ON | ON / OFF of the DRL function | ON / OFF |
| D/FOOT LIGHT T (Foot lamp set up (driver's side)) | 15s | Set the period the foot light stays on (driver's side). | OFF /7.5 s /15 s /30 s |
| P/FOOT LIGHT T (Foot lamp set up (passenger's side)) | 15s | Set the period the foot light stays on (passenger's side). | OFF /7.5 s /15 s /30 s |
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:
- • 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.