2013 Toyota Prius ThreeFACTORY OEM SERVICE PROCEDURE

Integration Relay: Installation: Installation

  1. INSTALL NO. 1 INTEGRATION RELAY 
    1. Connect the 3 connectors.
      Fig 1: Identifying No. 1 Integration Relay & Connectors
      GTY236579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Engage the 2 claws to install the No. 1 integration relay as shown in the illustration.
      Fig 2: Identifying No. 1 Integration Relay & Claws
      GTY218725Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL NO. 1 RELAY BLOCK COVER 
    1. Engage the 3 claws to install the No. 1 relay block cover.
      Fig 3: Identifying No. 1 Relay Block Cover & Claws
      GTY231256Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION .

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:

  • • 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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