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.
2007 Lexus GS 430FACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Absorber Control ECU | Behind right end of dash. See Figure. |
| A/C Amplifier | Behind center right of dash. See Figure. |
| Body ECU (Cowl Side J/B LH) | Inside cowl side J/B Left. See Figure. |
| Body ECU (Cowl Side J/B RH) | Inside cowl side J/B Right. See Figure. |
| Certification ECU | Right rear corner of luggage compartment. See Figure. |
| Clearance Warning ECU | Behind right end of dash. See Figure. |
| Cooling Fan ECU | Left front of engine compartment. See Figure. |
| Distance Control ECU | Behind left side of dash. See Figure. |
| Door Control Receiver | Right rear of luggage compartment. See Figure. |
| Door ECU (Front LH) | In driver's door. See Figure. |
| Door ECU (Front RH) | In right front door. See Figure. |
| Door ECU (Rear LH) | In left rear door. See Figure. |
| Door ECU (Rear RH) | In right rear door. See Figure. |
| Engine Control Module | At left side of engine compartment. See Figure. |
| Front Stabilizer Control ECU | Right front corner of engine compartment. See Figure. |
| Gateway ECU | Behind right side of dash. See Figure. |
| Gateway ECU (No. 2) | Front of luggage compartment. See Figure. |
| Headlamp Beam Level Control ECU | Under left end of dash. See Figure. |
| Headlamp Swivel ECU | Under left end of dash. See Figure. |
| Injector Driver EDU | Right front of engine compartment. See Figure. |
| Mayday ECU | Center rear of luggage compartment. See Figure. |
| Occupant Classification ECU | Under front passenger's seat. See Figure. |
| Position Control ECU & SW (Front LH Seat) | Left side of driver's seat. See Figure. |
| Position Control ECU & SW (Front RH Seat) | Right side of front passenger's seat. See Figure. |
| Power Source Control ECU | Behind right side of dash. See Figure. |
| Power Steering ECU | Right rear corner of engine compartment. See Figure. |
| Rear Stabilizer Control ECU | Right side of luggage compartment. See Figure. |
| Seat Belt Control ECU | Left side of luggage compartment. See Figure. |
| Shift Lock Control ECU | Under center console, near selector lever. See Figure. |
| Skid Control ECU W/Actuator (3.5L) | Left rear of engine compartment. See Figure. |
| Skid Control ECU (4.3L) | Left rear of engine compartment. See Figure. |
| Sliding Roof Control ECU | Front of overhead console. See Figure. |
| Steering Control ECU | Under glove compartment. See Figure. |
| Steering Lock ECU | Top right side of steering column. See Figure. |
| Tilt & Telescopic ECU | Top right side of steering column. See Figure. |
| Tire Pressure Warning ECU | Behind center of dash. See Figure. |
| 4WD Control ECU | Behind right side of dash. See Figure. |
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.
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