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Jeep
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2025
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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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2.0L - DTCS P2173 To P226D
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DTC Troubleshooting
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P2251 O2 Sensor 1/1 Negative Current Control Circuit/Open
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When Monitored
When Monitored
This diagnostic runs when the following conditions are met:
With the ignition on.
During a Decel Fuel Shutoff (DSFO) event.