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Cadillac
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2006
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CTS Base, 2.8 T, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - 2.8L - DTC P2179 To P2636
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DTC P2243 or P2247
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DTC Descriptors
DTC Descriptors
This diagnostic procedure supports the following DTCs:
DTC P2243 HO2S Reference Voltage Circuit Bank 1 Sensor 1
DTC P2247 HO2S Reference Voltage Circuit Bank 2 Sensor 1