2005 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

System Diagram: Description

The defogger system and rear view mirror system use heater wires to defog the rear windshield and rear view mirror, respectively. The defogger & mirror heater switch operates both the defogger system and the rear view heater system. Both systems are part of the same circuit.

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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