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.
Test Drive Confirmation
Connect scan tool to Data Link Connector (DLC) No. 3. See Figure. If using OBD-II scan tool, go to next step. If using Lexus scan tool, switch to CHECK mode. Ensure all accessories are off. Start and idle engine for 100 seconds or more. Drive vehicle at 24 MPH for 20 seconds or more. Repeat driving and idle part of test 3 more times. If malfunction exists, MIL will illuminate.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.