Operation CHARM: Car repair manuals for everyone.

Heated Oxygen Sensor

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

Resistance: 11 to 16 Ohm at 20 °C (68 °F)

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

Torque: 44 Nm (450 kgf.cm, 32 ft.lbf)

c. Reconnect the oxygen sensor connector.

2. INSPECT OPERATION OF HEATED OXYGEN SENSOR