Heated Oxygen Sensor

COMPONENTS

2007 ENGINE Emission Control - Sequoia

Fig. 64: Identifying Heated Oxygen Sensor Components With Specified Torque Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION

1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR

a. Disconnect the oxygen sensor connector.

b. Using an ohmmeter, measure the resistance between terminals +B and HT.

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

Fig. 65: Measuring Resistance Between Terminals +B & HT Using Ohmmeter Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Reconnect the oxygen sensor connector. 2. INSPECT OPERATION OF HEATED OXYGEN SENSOR

See DEFINITION OF TERMS

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