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Jeep
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2019
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Compass Trailhawk
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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2.4L - DTCS B104D To P0171
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DTC Troubleshooting
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P0037-O2 Sensor 1/2 Heater Circuit Low
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Set Condition
Set Condition
The PCM detects that the O2 Sensor heater circuit resistance is below approximately 2.0 Ohms.