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Fiat
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2018
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500X Lounge, 4WD
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Repair and Diagnosis
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Engine Performance
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System
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2.4L - DTCS B104D To P0325
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DTC Troubleshooting
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P0037-O2 Sensor 1/2 Heater Circuit Low
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Default Action
Default Action
The MIL will illuminate.
The PCM will disable the O2 Sensor Heater driver for the remainder of this ignition cycle.