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G90 5.0 Ultimate, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Diagnosis - 5.0L (8 Of 9)
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DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1)
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DTC Information
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DTC Description
DTC Description
When ECM detects open in the O2 sensor pumping current circuit (B1/S1), ECM sets DTC P223700.