2009 Toyota Matrix S, AWDFACTORY OEM SERVICE PROCEDURE

Heated Oxygen Sensor: Inspection

  1. INSPECT HEATED OXYGEN SENSOR (for 4WD) 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.
      Fig 1: Inspecting Heated Oxygen Sensor (For 4WD)
      G06040381Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard Resistance 

    RESISTANCE REFERENCE

    Tester Connection Condition Specified Condition
    HT - +B 20°C (68°F) 11 to 16 Ω
    HT - E - 10 kΩ or higher

    If the resistance is not as specified, replace the heated oxygen sensor.

  2. INSPECT HEATED OXYGEN SENSOR (for 2WD) 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

    Standard Resistance 

    RESISTANCE REFERENCE

    Tester Connection Condition Specified Condition
    HT - +B 20°C (68°F) 11 to 16 Ω
    HT - E - 10 kΩ or higher

    If the resistance is not as specified, replace the heated oxygen sensor.

    Fig 2: Inspecting Heated Oxygen Sensor (For 2WD)
    G06040382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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