2004 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Microphone ASSY: Replacement

HINT:

The installation procedures are the removal procedures in reverse order. However, only installation procedures requiring additional information are included.

  1. REMOVE MAP LAMP ASSY 
    1. Using a screwdriver, remove the 2 coutesy lenses.

      HINT:

      Tape the screwdriver tip before use.

    2. Remove the 2 screws.
    3. Disconnect the connector and then remove the map lamp assembly.
    Fig 1: Removing Map Lamp Assy
    G03479664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE MICROPHONE ASSY 
    1. Cut the tapes as shown in Fig 2.
      Fig 2: Cutting Harness Tapes
      G03479665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the screw and microphone bracket.
      Fig 3: Removing Microphone Bracket
      G03479666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the microphone part.
    4. Using a screwdriver, pull out the retainer from the map lamp connector.
      Fig 4: Pulling Out Retainer From MAP Lamp Connector
      G03479667Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 2 terminals of the microphone assembly, and remove the microphone assembly from the map lamp connector.
  3. INSTALL MICROPHONE ASSY 
    1. Install the 2 terminals of the microphone assembly to the map lamp connector
      Fig 5: Installing Microphone Assy To Map Lamp Connector
      G03479668Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Push the retainer into the map lamp connector.
    3. Install the microphone assembly with the screw and microphone bracket.
      Fig 6: Installing Microphone Assembly & Microphone Bracket
      G03479669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Align the microphone cord with the wire harness of the map lamp from the connector side and fix the cord with tapes in one place.
      Fig 7: Attaching Wiring Harness With Tapes
      G03479670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Cover the microphone cord together with the wire harness with tube and fix the tube with tape in one place.
    6. Fix the excessive cord of the microphone in one place.
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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.

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