Test Step 2 - O2 SENSOR 2/2 HEATER ELEMENT
- Turn the ignition off.
NOTE:
Allow the O2 Sensor to cool down to room temperature.
- Disconnect the O2 Sensor 2/2 harness connector.
- Measure the resistance across the O2 Sensor 2/2 Heater element, between the O2 Heater Control terminal and the O2 Heater ground terminal in the component connector.
NOTE:
O2 Sensor 2/2 Heater Element resistance values should be measured at 21.1°C (70°F). The resistance value will vary with different temperature values.
Is the O2 Sensor Heater Element resistance between 2.0 and 30.0 Ohms?
Yes
No
- Verify that there is good pin to terminal contact in the O2 Sensor 2/2 and Powertrain Control Module connectors. If OK, replace the O2 Sensor. Refer to Removal and Installation .
- Perform the Powertrain Verification Test. Refer to PCM Verification Test (2009 - 2011) & PCM Verification Test (2012 & Up) .