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2008 Hummer H2 - Page 6 Questions & Answers
Obd2 port not recognising diagnostic tester
First I suggest to check fuses; keep in mind that the OBD-II port didn't work because the power wire in the connector corroded and didn't have a connection anymore. No power equals no OBD worked.Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.Thank you for using FixYa, have a nice day.
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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