On-Vehicle Inspection Of Converter & Inverter Assembly

2004 Toyota Matrix XR, FWD, StandardSECTION On-Vehicle Inspection Of Converter & Inverter Assembly
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. Inspect inverterΒ  :
    1. Turn the IG switch OFF and disconnect the 4 connectors.
    2. Apply battery positive voltage to connector B terminal 5 (IGCT) on the inverter side through a fuse, and battery negative voltage to connector B terminal 6 (GND).
    3. Measure the voltage and resistance between each terminal shown in Fig 1 and Fig 2 and ground.
      Fig 1: Identifying Inverter Terminals Of Connectors A-D
      G01066159Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
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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.