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2021
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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 B1810 To P0196
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Diagnosis And Testing
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P0140-O2 Sensor 1/2 Signal Inactive
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the oxygen sensor signal switches from lean to rich less than 16 times within 20 seconds during monitoring.