P0161 Ford

Ford P0161 OBD-II Trouble Code Definition:

P0161 O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 2

P0161 Ford OBD-II Trouble CodeDescription:

OBD Trouble Code P0161
O2 Sensor Heater Circuit
What does the code mean? OBD-ii Code P0161 definition:
It basically means the PCM detected either an excessive current draw, or an open or short in the circuit powering the oxygen sensor’s heater circuit. This is in reference to the Heated Oxygen Sensor (2) located rear of catalytic converter (Bank 2).
Symptoms Sumptoms of OBD code P0161
There will likely be no obvious symptoms other than MIL illumination.
Causes Causes of the OBD-II code P0161
A code P0161 may mean that one or more of the following has happened: HO2S heater power circuit open HO2S heater ground circuit open HO2S signal tracking (due to oil or moisture in the connector) HO2S is damaged or has failed PCM has failed
Solutions Replace HO2 Sensor Repair open or short in power circuit Repair open or short in ground circuit Repair damaged connector due to tracking