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 GS 430FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Grounds
GROUNDS LOCATION
| Component | Component Location |
|---|---|
| BJ | At left rear floor partition panel. See Figure. |
| BK | At left rear quarterpanel. See Figure. |
| BL | At right rear floor partition panel. See Figure. |
| BM | At right rear quarterpanel. See Figure. |
| EA (3.0L) | At middle of right inner fender panel. See Figure. |
| EA (4.3L) | At middle of right inner fender panel. See Figure. |
| EB (3.0L) | At middle of left inner fender panel. See Figure. |
| EB (4.3L) | At middle of left inner fender panel. See Figure. |
| EC (3.0L) | At front of intake manifold. See Figure. |
| EC (4.3L) | On right cylinder head. See Figure. |
| ED (3.0L) | At rear of intake manifold. See Figure. |
| ED (4.3L) | On left cylinder head. See Figure. |
| EE (3.0L) | Under ABS & TRAC & VSC actuator. See Figure. |
| EE (4.3L) | Under ABS & TRAC & VSC actuator. See Figure. |
| IF | At left kick panel. See Figure. |
| IG | At left side of dash. See Figure. |
| IH | At right dash panel brace. See Figure. |
| II | At right side of dash. 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.