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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 451 (HYBRID VEHICLE CONTROL)CONVERTER AND INVERTER ASSEMBLYCONVERTER & INVERTER ASSEMBLY REMOVAL
2004 Toyota Matrix XR, FWD, Standard

Converter & Inverter Assembly Removal

2004 Toyota Matrix XR, FWD, StandardSECTION Converter & Inverter Assembly Removal
WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove service plug  . See PRECAUTION .
  2. Drain HV coolant  . See Step 2)  in Replace Coolant in HYBRID TRANSAXLE ON-VEHICLE REPAIR .
  3. Remove COWL TOP PANEL .
  4. Verify "ZERO" V  .
    CAUTION:
    • Before starting step ( a), 5 minutes or more should be passed after removing the service plug.
    • Be careful to prevent foreign matter from entering the inside of connector cover.
    1. Disconnect the connector of the battery power cable and insulate it with packaging tape.
    2. Using a torx socket wrench (T30), remove the 4 screws and inverter terminal cover.
      3. NOTE: Slide the connector cover to disconnect the circuit breaker sensor connector.
    3. Using a torx socket wrench (T40), remove the 2 screws, circuit breaker sensor and connector cover.
    4. Using a voltmeter, measure the voltage between terminals of 3 phases (U-V, V-W, U-W) and each terminal and body ground to verify them to be approximately 0 V.
      Fig 1: Identifying Converter & Inverter Assembly
      G01066164Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. Remove converter & inverter assembly  :
      CAUTION: Be careful to prevent foreign matter from entering the inside of connector cover.
RENDER: 1.0x

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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.