2017 TRD Sport - Engine Code P2237 - O2 Sensor Pumping Circuit Open Sensor 1

Can anyone that can point me in the right direction. 48,000 miles first code other than a loose gas cap 25,000 miles ago.

If its a o2 sensor which one?

Please and Thank you

 

Upstream sensor bank one...open circuit heater control

 

Aren't u still under warranty?

 

I’m calling today to make sure but if not needed to start the reaearch

 

so the first one between exhaust manifold and cat?

 

Yeah...check the connector for green puss, inspect the wiring for damaged insulation, test the heater control circuit for power and ground is how I would approach it.

 

Awesome thanks for the direction

 

Is bank 1 driver's side?

 

Bank 1 is same side as cylinder 1...I believe all GR series engines installed longitudinal that would be the passenger side.

 

Update: It was covered under my extended warranty and the upstream O2 sensor on passenger side was confirmed bad. Thanks for the input from all that responded. Cheers to a great weekend