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
Electrical Component Locator: Switches
SWITCHES LOCATION
| Component | Component Location |
|---|---|
| Brake Fluid Level Warning Switch | On brake master cylinder reservoir. |
| Brake Pedal Load Sensing Switch | On brake pedal bracket, above brake pedal. See Figure. |
| Buckle Switch (4) | Inside of respective seat belt buckle. |
| Engine Hood Courtesy Switch | Near hood latch, on front center of engine compartment. |
| Oil Pressure Switch | On lower left front of engine. See Figure. |
| Parking Brake Switch | Behind left end of dash, on parking brake mechanism. See Figure. |
| Park/Neutral Position Switch | On right side of transmission. See Figure. |
| Stoplight Switch | Above brake pedal, on bracket. |
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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