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Jeep
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2022
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Grand Cherokee Altitude, AWD
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Repair and Diagnosis
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Engine Performance
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System
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3.6L - DTCS P0405 To P0463
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DTC Troubleshooting
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P0441-EVAP Purge System Performance
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Set Condition
Set Condition
The PCM detects that the change (delta) in fuel tank pressure is below a calibrated threshold during side 1 (Purge Solenoid ramped up) or side 2 (Purge Solenoid ramped down) of both the non-intrusive and intrusive diagnostic.