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.
2004 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Park/Neutral Position Switch
- Inspect park/neutral position switch assy:
- Apply parking brake and the turn ignition switch to the ON position.
- Depress brake pedal and check that the engine starts only when the shift lever is set in the N or P position, but does not start in other positions.
- Check that the back-up light comes on and the reverse warning buzzer sounds when the shift lever is set in the R position, but do not function in other positions. If a failure is found, check the park/neutral position switch for continuity. See DIAGNOSIS article.
- Adjust park/neutral position switch assy. See Fig 1:
- Loosen the bolt of the park/neutral position switch and move the shift lever to the "N" position.
- Align the groove and the neutral basic line.
- Hold the switch in position and tighten the bolt to specification. See TORQUE SPECIFICATIONS .
- After adjustment, perform the Inspection described in step 1.
Factory Service Tools
Use the Manual With the Right Hardware
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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.