O2 Sensor wiring pinout

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Joined
Apr 8, 2021
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Ram Year
2019
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Hemi 5.7
Can someone verify my understanding of the wiring on the O2 sensor plug.

Pin 1 - O2 Heat - 12Volt +
Pin 2 - Ground - 12Volt -
Pin 3 - O2 Return (Upstream or Downstream) - ?
Pin 4 - O2 Signal - ?

My questions are on Pin 3 & 4.

Generally, 1 of these is a 0-1 volt output from the sensor since these are narrowband. Then the other is either a 12Volt or Ground for the sensor signal input.

I'm wanting to prewire a harness to plug into the OE plug to deliver the O2 narrow band output from a Wideband controller.

Thanks for any help.
 

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