WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
PICK UP MODELS
Fig 1: Identifying O2 Sensor Module
Courtesy of CHRYSLER GROUP, LLC
The oxygen sensor module (1) is located under the vehicle. It is bolted to the outer side of right frame rail (4).