O2 Sensor 1/1 Heater Circuit Low
P0031 may mean the PCM is seeing the O2 Sensor 1/1 heater control circuit lower than expected.
Article vehicle: 2019-2024 Ram 1500Classic 3.6PentastarGas
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P0031: O2 Sensor 1/1 Heater Circuit Low
Vehicle-specific published guides for this diagnostic trouble code.