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.
2000 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Key Interlock Solenoid
- Disconnect electrical connector from key interlock solenoid. Using DVOM, measure resistance between appropriate key interlock solenoid terminals. See KEY INTERLOCK SOLENOID RESISTANCE table. If resistance is not within specification, replace key interlock solenoid. If resistance is within specification, go to next step.
- Connect jumper wire between positive battery terminal and key interlock solenoid terminal No. 1. Connect an additional jumper wire between ground and other key interlock solenoid terminal No. 2. Replace shift lock solenoid if operating sound cannot be heard.
KEY INTERLOCK SOLENOID RESISTANCE
| Application | Ohms | ||
|---|---|---|---|
| Avalon (Column Shift), Camry, Camry Solara, Corolla, ES300, RAV4, RX300 & 4Runner | 12.5-16.5 | ||
| Avalon (Floor Shift) | 13-16 | ||
| Celica & ECHO | (1) | ||
| GS300, GS400, Land Cruiser, LS400, LX470 & Tacoma | 12-17 | ||
| SC300 & SC400 | 12-14 | ||
|
|||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.