Oxygen Sensor: Testing and Inspection

HEATED OXYGEN SENSORS INSPECTION
INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS
- Disconnect the heated oxygen sensor connector.








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

Resistance: At 20°C (68°F): 11 - 16 ohms

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