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Dodge and Ram
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2021
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ProMaster 2500
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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 P0572 To P1239
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DTC Troubleshooting
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P0685-ASD/Main Control Circuit
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects and open or short in the ASD Relay control circuitry.