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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 P0303 To P0632
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DTC Troubleshooting
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P0564-00-Speed Control Switch 1
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Set Condition
Set Condition
The PCM detects that the S/C Switch Signal 1 voltage received over the CAN Bus from the BCM is out of range.