2009 Toyota Matrix Base, StandardFACTORY OEM SERVICE PROCEDURE

Air Fuel Ratio Sensor: Removal

  1. REMOVE FRONT WIPER ARM HEAD CAP  (See REMOVAL )
  2. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH  (See REMOVAL )
  3. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH  (See REMOVAL )
  4. REMOVE HOOD TO COWL TOP SEAL  (See REMOVAL )
  5. REMOVE COWL TOP VENTILATOR LOUVER RH  (See REMOVAL )
  6. REMOVE COWL TOP VENTILATOR LOUVER LH  (See REMOVAL )
  7. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY  (See REMOVAL )
  8. REMOVE OUTER COWL TOP PANEL  (See REMOVAL )
  9. REMOVE NO. 2 CYLINDER HEAD COVER  (See REMOVAL )
  10. REMOVE AIR FUEL RATIO SENSOR 
    1. Disconnect the air fuel ratio sensor connector and clamp.
      Fig 1: Locating Air Fuel Ratio Sensor Connector And Clamp
      G05398800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST, remove the air fuel ratio sensor.

      SST 09224-00010 

      Fig 2: Identifying Air Fuel Ratio Sensor
      G06008189Courtesy 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.