Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2005CROWN VICTORIA SPECIAL EDITIONREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMSDIAGNOSIS AND TESTINGSPEED CONTROLINSPECTION AND VERIFICATIONPOWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
2005 Ford Crown Victoria Special Edition
Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index
2005 Ford Crown Victoria Special EditionSECTION Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index
POWERTRAIN CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX
| DTCs | Description | Source | Action |
|---|---|---|---|
| P0500 | Vehicle Speed Error | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION . |
| 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 . |
| P0720 | Insufficient Input from Output Shaft Speed Sensor | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION . |
| P0721 | Noise Interference on Output Shaft Speed Sensor Signal | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION . |
| P0722 | No Signal from Output Shaft Speed Sensor | PCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION . |
| 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 . |
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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.