P0161 is a very common OBDII code that occurs in the Chevy Silverado. It is typically caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 2 sensor 2. Replacing the Oxygen sensor will fix the problem a majority of the time. Some of the other causes of P0161. Issue + Repair History: MIL light on. Code P0161 stored indicating oxygen sensor heater circuit failure. Uncertainty about which of the 4 O2 sensors had the faulty circuit. Replaced bank 2 sensor 2 (rear sensor, right side) but the light came back on. All 4 positions use the same part numbered O2 sensor. What repairs can fix the P0161 code? Replacement of the bank 2 sensor 2 oxygen sensor; Repairing the wiring in the heater circuit; Need help with a P0161 code? YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service Fixing DTC P0161 involves several steps to diagnose and resolve the issue with the downstream oxygen sensor's heater circuit on bank 2. Here's a step-by-step guide to address the problem: Check the fuse. Start by inspecting the fuse related to the oxygen sensor heater circuit. A blown fuse can cause the heater circuit to malfunction. P0161 Explained - Oxygen Sensor Heater Circuit Malfunction (Simple Fix) - YouTube 0:00 / 1:50 • P0161 - Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2) - Downstream P0161 =====Claim your FREE engine code eraser 👉 👈=====Engine Code HONDA P0161 Saving Repai .

how do i fix code p0161