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 ES 300FACTORY OEM SERVICE PROCEDURE
Circuit Protection Devices
CIRCUIT PROTECTION DEVICES
| Component | Component Location |
|---|---|
| Engine Room Junction Block | On left side of engine compartment. See Figure. |
| Engine Room No. 2 Relay Block | On left front of engine compartment. See Figure. |
| Engine Room No. 3 Relay Block | In right front of engine compartment, on radiator upper support. See Figure. |
| Engine Room Relay Block | On left side of engine compartment, inside engine room junction block. See Figure. |
| Fusible Link Block | On left side of engine compartment, inside engine room junction block. See Figure. |
| Instrument Panel Junction Block | Behind left side of dash, near kick panel. 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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