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.
2002 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Lexus LS430
- Disconnect the solenoid connector. Using an ohmmeter, measure the resistance between terminals No. 3 and 4. See Fig 1. Resistance should be 12-17 ohms. If resistance value is not as specified, replace the solenoid. See KEY INTERLOCK SOLENOID under REMOVAL & INSTALLATION.
- Momentarily supply battery positive voltage and ground at terminals. See Fig 2. Ensure an operating noise can be heard from the solenoid. If the solenoid does not operated, replace the solenoid. See KEY INTERLOCK SOLENOID under REMOVAL & INSTALLATION.
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.