Follow these steps to fix the P0161 error: Connect the OBD-2 scanner. Check for the displayed error codes. Diagnose the reason for the error without causing a failure in the downstream oxygen sensor system. See if the problem is with the power relay of the sensor or the wiring. Splicing the
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.
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
The first step in diagnostics for a P0161 trouble code is to perform a visual inspection of the wiring for the bank 2 sensor 2 oxygen sensor. Many times this code will be set due to damaged wiring. This can be caused by either the wiring being routed incorrectly or by road hazards that caused damage to the wiring.Jak mechanik może zdiagnozować kod P0161? Pierwszym krokiem w diagnozowaniu kodu usterki P0161 jest wizualne sprawdzenie okablowania czujnika tlenu w banku 2. W wielu przypadkach kod ten może być ustawiony z powodu uszkodzonego okablowania spowodowanego nieprawidłowym poprowadzeniem lub zagrożeniami na drodze. zDUMoNf.