Mike's Workshop Manuals
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Dodge and Ram
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2021
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ProMaster City Base
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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 P0633 To P1205
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DTC Troubleshooting
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P0645 - A/C Control Circuit/Open
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Set Condition
Set Condition
An open or shorted condition is detected in the A/C Clutch Relay control circuit.