2014 Toyota Prius TwoFACTORY OEM SERVICE PROCEDURE

Precaution [10/2013 - ]

WARNING: This page is about a different variant/trim than selected.
  1. PRECAUTIONS FOR INSPECTING PLUG-IN CHARGE CONTROL SYSTEMΒ 
    1. Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly or electric vehicle charger assembly, take safety precautions such as turning the power switch off, wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
      NOTE:
      • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION [10/2013 - ] .
      • After removing the service plug grip, turning the power switch on (READY) may cause a malfunction. Do not turn the power switch on (READY) unless instructed by the service information.
    2. After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.

      HINT:Β 

      Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.

      Fig 1: Removing Service Plug Grip
      GTY330928Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check the voltage at the terminals in the inspection point in the inverter with converter assembly.
      WARNING:

      Be sure to wear insulated gloves.

      1. Remove the 9 bolts and inverter cover.
        Fig 2: Identifying Inverter Terminal Cover & Bolts
        GTY231954Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
Factory Service Tools

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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.