Operation CHARM: Car repair manuals for everyone.

Heated Oxygen Sensor Heater Inspection

1. Disconnect the heated oxygen sensor connector.




2. Measure the resistance between heated oxygen sensor terminals C and D by using an ohmmeter.
- If not as specified, replace the heated oxygen sensor. (See EXHAUST SYSTEM REMOVAL/INSTALLATION.)
- If okay, inspect related harness or connectors.

Specification : Approx. 6 ohms