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.
2000 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Component Locations
COMPONENT LOCATIONS
| Component | Location |
|---|---|
| Body Control ECU No. 1 (GS300 & GS400) | On Right Kick Panel Junction Block |
| Body Control ECU No. 2 (GS300 & GS400) | On Left Kick Panel Junction Block |
| Body Control ECU (LS400) | Behind Left Side Of Instrument Panel, Near Junction Block |
| Door ECU (GS300, GS400 & LS400) | In Respective Door, Near Switches |
| Instrument ECU (LX470) | Behind Top Center Of Instrument Panel |
| Power Seat ECU (GS300, GS400, LS400 & LX470) | Under Driver's Seat |
| Remote Control Mirror ECU (LX470) | In Driver's Door |
| Remote Control Mirror ECU (SC300 & SC400) | Behind Left Side Of Instrument Panel, Near Steering Column |
| Tilt & Telescopic ECU (GS300, GS400 & LS400) | Behind Left Side Of Instrument Panel, Near Steering Column |
| Tilt & Telescopic ECU (LX470) | Behind Right Kick Panel, Near Junction Block |
| Tilt & Telescopic ECU (SC300 & SC400) | Behind Left Side Of Instrument Panel |
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.