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Jeep
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2018
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Compass Trailhawk
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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 P0222
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DTC Troubleshooting
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P0139-O2 Sensor 1/2 Slow Response
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the Oxygen Sensor signal does not switch adequately during monitoring.