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ProMaster City Base
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2.4L - DTCS P0304 To P062A
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DTC Troubleshooting
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P0579-Speed Control Switch 1 Performance
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Set Condition
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Set Condition
The Powertrain Control Module (PCM) detects that the Speed Control Switch MUX voltage signal value received from the Body Control Module (BCM) is not out of range but it does not equal a valid value for any of the switch positions.