Diagnostic Aids

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the OSS senor, harness, and connector for metallic debris.
Proper torque of the OSS sensor mounting bolt is critical to proper OSS sensor operation.
If the scan tool ISS/OSS Supply Voltage indicates out of range, the fault could also be caused by the transmission input shaft speed sensor.