Location of bank 1 sensor 1 o2 sensor 0n a 6 cylinder jeep grand Cherokee laredo

---V6--- bank 1 is the bank on the left looking at the engine from the front
sensor 1 is the heated oxygen sensor (HO2S) in the exhaust manifold or pipe before the cat converter
the oxygen (O2S) is a totally different unit located after the cat converter
so you have to decide if it is a heated oxygen sensor or a simple oxygen sensor
if the engine is a straight 6 cyl engine then there is only one exhaust manifold but the HO2S and O2S are locate din the same places ( before and after the cat converter

Bank one is left side top of engine standing looking at it , O2 sensor is located on exhaust manifold there is one on each manifold (right-left)