Description
OBD-II Trouble Code Description for P0161 GMC
O2 Sensor Heater Circuit
What does this mean?
OBD2 Code P0161 GM 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
Possible sumptoms of OBD code P0161 GM
There will likely be no obvious symptoms other than MIL illumination.
Causes
Possible causes of OBD code P0161 GM
A code P0161 GM 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
Possible Solutions
Replace HO2 Sensor Repair open or short in power circuit Repair open or short in ground circuit Repair damaged connector due to tracking
The OBD2 Code Information Be Applicable For GMC:
2013 GMC Terrain Denali,2013 GMC Acadia,2011 GMC Sierra All Terrain HD Concept,2010 GMC Terrain,2010 GMC Granite Concept,2009 GMC Sierra Hybrid Crew Cab,2008 GMC Yukon Hybrid,2008 GMC Denali XT Concept,2007 GMC Yukon XL,2007 GMC Yukon Denali,2007 GMC Yukon,2007 GMC Sierra Denali,2007 GMC Sierra Classic,2007 GMC Sierra 3500 HD SLT Crew Cab,2007 GMC Sierra 2500 HD SLT Extended Cab,2007 GMC Sierra,2007 GMC Acadia,2005 GMC Sierra Denali 1500 Crew Cab,2005 GMC Graphyte Concept,2005 GMC Envoy XL Denali,2005 GMC Envoy Denali
Note:
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