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.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 75 (AUTOMATIC TRANSMISSION SHIFT INTERLOCK SYSTEMS)COMPONENT TESTSKEY INTERLOCK SOLENOIDLEXUS RX300
2004 Toyota Matrix XR, FWD, Standard
Lexus RX300
2004 Toyota Matrix XR, FWD, StandardSECTION Lexus RX300
WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the solenoid connector. Using an ohmmeter, measure resistance between terminals. See Fig 1. Resistance should be 12.5-16.5 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.
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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.