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.
1997 Lexus LX 450FACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS
| Component | Component Location |
|---|---|
| ABS ECU | Behind left kick panel, above relay block No. 1. See Figure. |
| Auto Antenna ECU | Behind right kick panel. See Figure. |
| Cruise Control ECU | Behind left side of dash, left of steering column. See Figure. |
| Differential Lock ECU | Behind right kick panel. See Figure. |
| Engine Control Module (ECM) | Behind right side of dash, above glove box. See Figure. |
| Glass Breakage ECU | Behind fuse block, on left side of dash. See Figure. |
| Shift Lock ECU | Under center console, near gearshift lever. See Figure. |
| Theft Deterrent ECU | Under left front floor board. 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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