LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2025 >> RX 350h Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Service Information >> Camshaft Timing Control Motor >> Inspection [10/2022 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection [10/2022 - ]: 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.
      GTY751938Courtesy 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.
      GTY753176Courtesy 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.
      GTY755504Courtesy 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.