Inspection Of Front & Rear Heated Oxygen Sensor Heaters
- Ensure ignition switch is OFF.
- Disconnect heated oxygen sensor connector.
- Connect ohmmeter between terminals 1 and 3 and measure resistance.
Specifications: Approx. 3~7Ω (68°F (20°C))
- If not as specified, replace heated oxygen sensor.
Tightening Torque: 22-36 lb.ft (30~49 N.m, 3~5 kg.m)
- Reconnect heated oxygen sensor connector.