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.
2007 Lexus GS 430FACTORY OEM SERVICE PROCEDURE
Confirmation Driving Pattern
- Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
- Switch the intelligent tester from normal mode to check mode (see CHECK MODE PROCEDURE ).
- Allow the engine to idle until the ECT reaches 75°C (167°F). *1
- Allow the vehicle to run at 40 km/h (25 mph) or more for 25 seconds or more. *2
- Allow the engine to idle for 30 seconds. *3
- Perform the 2 previous steps at least 3 times. *4
HINT:
If a malfunction exists, the MIL will be illuminated on the multi-information display.
- Allow the engine to idle for 30 seconds.
NOTE:
If the conditions in this test are not strictly followed, you should perform steps *2 and *3.
If you do not have the intelligent tester, turn the engine switch off after performing steps *1 to *4, then perform steps *1 to *4 again.
If you do not have the intelligent tester, turn the engine switch off after performing steps *1 to *4, then perform steps *1 to *4 again.
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.