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Hyundai
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2009
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Tucson GLS, Standard
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Repair and Diagnosis
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Engine Performance
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System
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DTC Troubleshooting Procedures (2.0L)
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Troubleshooting for DTC
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P0031 O2 Sensor Heater Circuit low (Bank 1/Sensor 1)
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DTC Description
DTC Description
PCM sets DTC P0031 if the PCM detects that the front HO2S heater control circuit is short to ground.