2001 Toyota PriusFACTORY OEM SERVICE PROCEDURE

HV Battery: Reassembly

  1. INSPECT ROTOR BUSH OF MG2 ASSEMBLY 

    Using a dial indicator, measure the inside diameter of the rotor bush.

    Fig 1: Measuring Rotor Bush Inside Diameter
    G03452798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard diameter: 

    20.025-20.046 mm (0.78838-0.78921 in.) 

    Maximum diameter: 

    20.096 mm (0.79118 in.) 

    If the inside diameter exceeds the limit, replace the MG2 assembly.

  2. PLACE WOOD BLOCK UNDER MG1 ASSEMBLY TO STABILIZE 
    Fig 2: Placing Wood Block Under MG1 Assembly
    G03452799Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL DRAIN PLUG AND SCREW PLUG (MG1 side) 
    1. Apply liquid sealer to the screw plug and install it to the MG1 assembly with a hexagon wrench.
      Fig 3: Installing gasket and drain plug
      G03452800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Sealant: 

      Part No. 08833-00080, TREE BOND 1344, LOCTITE 

      242 or equivalent 

      Torque: 12.7 N.m (130 kgf.cm, 9 ft.lbf) 

    2. Install a new gasket and the drain plug.

    Torque: 39 N.m (400 kgf.cm, 29 ft.lbf) 

  4. PLACE WOOD BLOCK UNDER MG2 ASSEMBLY 
    Fig 4: Placing Wood Block Under MG2 Assembly
    G03452801Courtesy of © 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:

  • • 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.