Main Oxygen Sensor
OXYGEN SENSOR INSPECTION1. Allow the engine to warm up to normal operating temperature
2. Inspect Feedback Voltage.
Connect the positive (+) tester probe of a voltmeter to terminal VF1 of the data link connector 1 (DLC1), and negative (-) tester probe to terminal E1. Perform the test as described in the following image.
HINT: Use Special Service Tool (SST) when connecting between terminals TE1 and E1 of the DLC1. (SST 09843-18020)
Use a jumper wire when connecting between terminals TE1 and E1 of the DLC1.:
