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'P0037 JEEP code tech notes ... The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the ..
https://www.obd-codes.com/p0031 Check for a fuse bing blown , Heater circuit shorted in O2 sensor blowing the fuse , maybe . You don't say what make , model an year vehicle an engine size .
code p0037 refers to heated oxygen sensor(HO2S) 2 bank 1 heater control-circuit low===causes ---wiring short to ground--HO2S---ECM I would replace the oxygen sensor and check that the wiring is not shorting out.
Have you cleared the codes at least once?
The new o2 sensors should have removed all those codes.The sensor closest to the engine b1s1 may be defective.Check wiring and plug to that one closely.
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