Inspection [12/2022 - ]: Procedure

2025 Toyota Prius Plug-In Hybrid XSE PremiumSECTION Procedure
  1. INSPECT CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY 
    1. Rotate the joint of the cam timing control motor with EDU assembly by hand and check that it rotates smoothly.
      GTY810620Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Joint

      Standard Condition

      The joint rotates smoothly.

      HINT: 

      Due to the magnetic force of the cam timing control motor with EDU assembly the joint may feel as if it is sticking when turning it.

      If the result is not as specified, replace the cam timing control motor with EDU assembly.

  2. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY 
    NOTE:
    • If the camshaft timing gear assembly has been struck or dropped, replace it.
    • Do not disassemble the camshaft timing gear assembly. If disassembled, replace it.
    1. Rotate the camshaft timing gear assembly eccentric shaft by hand.
      GTY804429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Eccentric Shaft

      Standard Condition

      The shaft rotates smoothly.

      HINT: 

      The eccentric shaft may feel difficult to rotate due to the spring inside the camshaft timing gear assembly.

      If the result is not as specified, replace the camshaft timing gear assembly.

    2. Inspect the joint clearance.
      GTY824747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Cutout
      *b Joint
      1. Using a vernier caliper, measure the width (A) of the cutout of the camshaft timing gear assembly eccentric shaft.

        Standard Width

        Specified Condition Result
        5.98 to 6.05 mm
        0.235 to 0.238 in.
        mm
        in.
      2. Using a vernier caliper, measure the width (B) of the joint of the cam timing control motor with EDU assembly.

        Standard Width

        Specified Condition Result
        5.90 to 5.95 mm
        0.232 to 0.234 in.
        mm
        in.
      3. Calculate the clearance by subtracting the width (B) of the joint of the cam timing control motor with EDU assembly from the width (A) of the cutout of the camshaft timing gear assembly eccentric shaft.

        Standard Clearance

        Maximum Clearance  Specified Condition Result
        0.7 mm
        0.0276 in.
        0.03 to 0.15 mm
        0.00118 to 0.00591 in.
        mm
        in.

        If the clearance is more than the maximum, replace the camshaft timing gear assembly or cam timing control motor with EDU assembly.

RENDER: 1.0x

NO RELATED

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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.