2006 Lexus GS 430FACTORY OEM SERVICE PROCEDURE

Camshaft Position Sensor: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  2. DRAIN ENGINE COOLANT ( ON-VEHICLE INSPECTION  ) 
  3. REMOVE COOL AIR INTAKE DUCT SEAL (  2  ) 
  4. REMOVE ENGINE ROOM SIDE COVER LH (  4  ) 
  5. REMOVE V-BANK COVER 
    1. Remove the 2 nuts and V-bank cover.
  6. REMOVE RADIATOR HOSE INLET 
  7. REMOVE NO. 3 TIMING BELT COVER SUBASSEMBLY LH 
    1. Remove the cap nut and disconnect the No. 3 water bypass pipe from the timing belt cover.
    2. Disconnect the 2 water bypass hoses from the No. 3 water bypass pipe.
      Fig 1: Identifying Water By-Pass Hoses From Water By-Pass Pipe
      G04027199Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the engine wire from the 2 wire clamps.
    4. Disconnect the camshaft position sensor connector.
    5. Disconnect the camshaft position sensor wire from the wire clamp on the timing belt cover.
    6. Remove the wire grommet from the timing belt cover.
    7. Remove the 4 bolts.
    8. Disconnect the timing belt cover from the timing plate and camshaft bearing cap.
      Fig 2: Identifying Timing Belt Cover From Timing Plate And Camshaft Bearing Cap
      G04027200Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Disconnect the wire clamp for the sensor from the timing belt cover.
    10. Remove the connector holder from the sensor connector.
    11. Remove the timing belt cover.
  8. REMOVE CAMSHAFT POSITION SENSOR 
    1. Remove the bolt, stud bolt and sensor.
      Fig 3: Identifying Camshaft Position Sensor
      G04027201Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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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