Speed Control

2005 Ford Crown Victoria Special EditionSECTION Speed Control
POWERTRAIN CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTCs Description Source Perform Test
P0579 Cruise Control Multi-Function Input A Circuit Range/Performance PCM GO to PINPOINT TEST C .
P0581 Cruise Control Multi-Function Input A Circuit High PCM GO to PINPOINT TEST C .
P1572 Brake Pedal Switch Circuit PCM GO to PINPOINT TEST B .
P1703 Brake Switch Out of Self-Test Range PCM GO to PINPOINT TEST B .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.