Oxygen Sensor: Testing and Inspection

NOTE: Use an ohmmeter to test the heating element of the oxygen sensors.

1. Disconnect the electrical connector from each oxygen sensor.
- The white wires in the sensor connector are the power and ground circuits for the heater elements.
2. Connect the ohmmeter test leads to terminals of the white wires in the heated oxygen sensor connector.
- Replace the heated oxygen sensor if the resistance is not between 5 and 7 ohms.

NOTE: Complete testing for this system or component can be found at the system level. DTC Test - CODE TO TC TEST CHART (Checking for Trouble Codes)