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Chrysler
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2019
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300 C
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Repair and Diagnosis
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Engine Performance
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System
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5.7L - DTCS P0533 To P1593
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DTC Troubleshooting
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P0645-A/C Control Circuit/Open
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the A/C Clutch Relay Control circuit has an open or shorted condition.