2010 Chevrolet Aveo - 1.6 liter - 5 sp. manual - Downstream Oxygen Sensor Inquiry

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2010 Chevrolet Aveo - 1.6 liter - 5 sp. manual - Downstream Oxygen Sensor Inquiry - Looking for a Wiring Diagram Please

I need to know what these 4 wires do (each of their function) on my downstream O2 sensor.

- what does the purple wire do?
- what do the 2 brown/tan wires do?
- what does the white wire with thin black stripe do?

I also attached a picture of these 4 wires at the downstream o2 harness.

Looking forward to hearing from you!

Thanks again,

Justin