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Home >> Buick >> 2007 >> Allure CXS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.6L - DTC P2231 To P2626 >> DTC P2231 >> DTC Descriptor

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DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P2231 HO2S Signal Circuit Shorted to Heater Circuit Sensor 1

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