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2007 Hummer H2 SUT - Page 7 Questions & Answers
Hummer he 2004 p0141
Diagnostic Test Code (DTC) P0141 is defined by SAE J2012 as "O2 Sensor Heater Circuit Bank 1 Sensor 2"Most of the time, this is caused by the heating element in the O2 Sensor being burned out. However, there is a chance that there is a circuit malfunction elsewhere besides in the O2 Sensor itself.Also see this article:
Which Oxygen Sensor Is It?
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