Sephia LS L4-1.8L (2001)
Oxygen Sensor: Testing and Inspection
Front and Rear Heated Oxygen Sensor Heaters
1. Ensure ignition switch is OFF.
2. Disconnect heated oxygen sensor connector.
3. Connect ohmmeter between terminals 1 and 3 and measure resistance.
Specification: Approx. 2 - 4 ohms (68 °F {20 °C})
4. If not as specified, replace heated oxygen sensor.
Tightening Torque: 22 - 36 lb-ft (30 - 49 N.m, 3 - 5 kg-m)
5. Reconnect heated oxygen sensor connector.
