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Jeep
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2019
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Cherokee Altitude, 2.4L Eng VIN B, FWD
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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 P018B To P0581
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DTC Troubleshooting
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P0440-General EVAP System Failure
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Set Condition
Set Condition
The Powertrain Control Module (PCM) initiates an intrusive test to determine the leak size. This DTC's sets when the ESIM Switch did not close during the test period.