LEMON Manuals
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Cherokee Trailhawk
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Repair and Diagnosis
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Engine Performance
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3.2L - DTCS P0300 To P054A
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DTC Troubleshooting
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P0440-General EVAP System Failure
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Set Condition
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Set Condition
The Powertrain Control Module (PCM) initiates an intrusive test to determine the leak size. This DTCs sets when the ESIM Switch did not close during the test period.