2007 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Transmission Control Switch Circuit: Description

When moving the shift lever into the S position using the transmission control switch, it is possible to switch the shift range position between "1" (1st range) and "6" (6th range).

Shifting to "+" once raises the shift range position by one, and shifting to "-" lowers the shift range position by one.

Factory Service Tools

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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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