Mike's Workshop Manuals
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2021
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Cherokee High Altitude, Automatic T/Case Control
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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 P0452 To P060F
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DTC Troubleshooting
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P0455-EVAP System Large Leak
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Set Condition
Set Condition
The Powertrain Control Module (PCM) initiates an intrusive test to determine the leak size. During the test the ESIM switch opened before a calibrated period of time, indicating a large leak is present.