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 DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONDTC INDEXCOMMUNICATION SYSTEM DTCS (U CODES)
2005 Ford Crown Victoria Special Edition
Communication System DTCS (U Codes)
2005 Ford Crown Victoria Special EditionSECTION Communication System DTCS (U Codes)
COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| U0073 | Control Module Communication BUS OFF | ABS Module | REFER to MODULE CONFIGURATION . |
| U1026 | SCP (J1850) Invalid or Missing Data for Engine RPM | Air Suspension Module | See INTRODUCTION - GASOLINE article |
| U1026 | SCP (J1850) Invalid or Missing Data for Engine RPM | VAPS Module | See INTRODUCTION - GASOLINE article |
| U1073 | SCP (J1850) Invalid or Missing Data For Engine Coolant | EATC Module | See INTRODUCTION - GASOLINE article. |
| U1341 | SCP (J1850) Invalid or Missing Data For Vehicle Speed | EATC Module | REFER to MODULE CONFIGURATION . |
| U1900 | CAN Communication BUS Fault-Receive Error | ABS Module | REFER to MODULE CONFIGURATION . |
| U1900 | CAN Communication Bus Fault - Receive Error | FSM | If any ABS module DTCs are present, REFER to ANTI-LOCK CONTROL . If no ABS module DTCs are present, REFER to MODULE COMMUNICATIONS NETWORK . |
| U2023 | Fault Received From External Node | ABS Module | REFER to MODULE CONFIGURATION . |
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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.