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 ES 300FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Switches
SWITCHES LOCATION
| Component | Component Location |
|---|---|
| A/T Indicator Light Switch | On transaxle. |
| Back-Up Light Switch | On transaxle. |
| Brake Fluid Level Warning Switch | On brake fluid reservoir. |
| Buckle Switch (Left/Right) | On respective front seat belt buckle. |
| Engine Hood Courtesy Switch | On front center of engine compartment, near hood latch. |
| Oil Pressure Switch | On lower left front of engine block. See Figure. |
| Parking Brake Switch | Behind left side of dash. |
| Park/Neutral Position Switch | On transaxle. |
| Power Steering Oil Pressure Switch | Near front of engine. See Figure. |
| Pressure Switch | At right front corner of engine compartment. See Figure. |
| Stoplight Switch | Behind left side of dash. |
| Water Temperature Switch No. 1 | On right front of engine compartment. See Figure. |
| Water Temperature Switch No. 2 | On rear of engine. See Figure. |
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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