2013 Toyota Matrix S, FWD, Standard TransFACTORY OEM SERVICE PROCEDURE

Heated Oxygen Sensor: Inspection: Inspection

  1. INSPECT HEATED OXYGEN SENSOR (for 4WD) 
    1. Check the resistance.
      Fig 1: Inspecting Heated Oxygen Sensor (For 4WD)
      GTY291959Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard Resistance

        Tester Connection Condition Specified Condition
        HT1B - +B 20°C (68°F) 11 to 16 Ω
        HT1B - E2 - 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.
      Fig 2: Inspecting Heated Oxygen Sensor (For 2WD)
      GTY291163Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard Resistance

        Tester Connection Condition Specified Condition
        HT1B - +B 20°C (68°F) 11 to 16 Ω
        HT1B - E2 - 10 kΩ or higher

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

Factory Service Tools

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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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