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Home >> Ford >> 2009 >> Flex SE >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System - Speed Control >> Diagnosis And Testing >> Speed Control >> Symptom Chart
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Symptom Chart

PCM DTC CHART

DTC Description Action
P0579 Cruise Control Multifunction Input A Circuit Range/Performance Go To PINPOINT TEST C .
P0581 Cruise Control Multi-Function Input A Circuit High Go To PINPOINT TEST C .
P1703 Brake Switch Out Of Self Test Range Go To PINPOINT TEST B .
All other DTCs - REFER to the INTRODUCTION - GASOLINE MODELS .
DTC CHARTS

Condition Possible Sources Action
  • The speed control is inoperative
  • Wiring, terminals or connectors
  • PCM not configured for speed control
  • Speed control switch
  • Digital Transmission Range (TR) sensor
  • Vehicle speed signal
  • PCM
  • The speed control indicator lamp is never/always on
  • Wiring, terminals or connectors
  • PCM
  • Instrument Cluster (IC)
  • The speed control switches do not operate correctly
  • Wiring, terminals or connectors
  • Speed control switch
  • Clockspring
  • PCM