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2015
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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 P0503 To P1043
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DTC Troubleshooting
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P0571-Brake Switch 1 Performance
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the Brake Signal 1 input does not match the Brake Signal 2 input received via the CAN BUS from the BCM for more than 50 ms.