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2019
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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 P0304 To P062A
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DTC Troubleshooting
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P0581-Speed Control Switch 1 Circuit High
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Set Condition
Set Condition
The Powertrain Control Module (PCM) determines that the Speed Control Switch S/C Signal 1 voltage received over the CAN Bus from the Body Control Module (BCM) is above a calibrated threshold.