2004 Cadillac SRX O2 Sensor

2004 CADILLAC SRX
123,000 MILES • 6 CYL • AUTOMATIC
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GAHOTMAMA
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I have a 2004 Cadillac SRX and the Check Engine light came on, so I took it to Auto Zone to have it checked it said that the Oxygen Sensor Bank 2 Sensor 1 was reading too high. Where is this sensor located? Also I was told that if I put an injector cleaner in with my gas that it could possibly fix the problem... What is your take on that?
Jul 13, 2011 at 2:50 PM
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DOCFIXIT
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what was code in Poxxx format? see diagram
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Jul 13, 2011 at 3:05 PM
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GAHOTMAMA
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the problem code that I got when Auto Zone checked it was P2234. The definition: it gave was HO2S heated oxygen sensor signal circuit shorted to heater circuit. Bank 2 Sensor 1

Explanation: the ECM has detected the HO@S21 signal is higher than expected.

Probable Cause: 1-Shorted HO2S21 circuit 2-Failed HO2S21
Jul 13, 2011 at 4:50 PM
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DOCFIXIT
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Then replacement is in order
Jul 13, 2011 at 5:36 PM
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TREY55
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Where is this sensor located on driver side or passenger side
Jan 27, 2012 at 2:06 PM