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.
2004 Ford Freestar BaseFACTORY OEM SERVICE PROCEDURE
Communication System DTCS (U Codes)
COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| U1016 | SCP Invalid Data Node 10 Fault | SJB | Go To PINPOINT TEST A: THE SMART JUNCTION BOX (SJB) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL . |
| U1027 | SCP (J1850) Invalid or Missing Data for Engine RPM | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1027 | Missing or Invalid Throttle Message | Speed Control Actuator | Refer to SPEED CONTROL . |
| U1040 | SCP Invalid Data Node 28 Fault | SJB | Go To PINPOINT TEST A: THE SMART JUNCTION BOX (SJB) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL . |
| U1041 | Missing or Invalid Speed Message | Speed Control Actuator | Refer to SPEED CONTROL . |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | SJB | Refer to ANTI-LOCK CONTROL . |
| U1042 | SCP (J1850) Invalid or Missing Data for Traction Control | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1043 | SCP (J1850) Invalid or Missing Data for Traction Control | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1050 | SCP (J1850) Invalid or Missing Data for Brakes | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1051 | SCP (J1850) Invalid or Missing Data for Brakes | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1051 | SCP (J1850) Invalid or Missing Data for Brakes | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1051 | Missing or Invalid Brake Message | Speed Control Actuator | Refer to SPEED CONTROL . |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL | SJB | Refer to AUTOMATIC TRANSAXLE/TRANSMISSION . . |
| U1059 | Missing or Invalid PRNDL Message | Speed Control Actuator | Refer to SPEED CONTROL . |
| U1073 | SCP (J1850) Invalid or Missing Data for Engine Coolant | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1073 | SCP (J1850) Invalid or Missing Data for Engine Coolant | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1075 | SCP (J1850) Invalid or Missing Data for Engine Oil | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1123 | SCP (J1850) Invalid or Missing Data for Odometer | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1130 | SCP (J1850) Invalid or Missing Data for Fuel System | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1135 | SCP (J1850) Invalid or Missing Data for Ignition Switch/Starter | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1136 | SCP (J1850) Invalid or Missing Data for Telltales | Instrument Cluster | Refer to INFORMATION, GAUGES & WARNING DEVICES . |
| U1147 | SCP (J1850) Invalid or Missing Data for Vehicle Security | SJB | Refer to ANTI-THEFT . |
| U1218 | SCP (J1850) Invalid or Missing Data for External Lamps | SJB | Refer to EXTERIOR LIGHTING . |
| U1222 | SCP (J1850) Invalid or Missing Data for Interior Lamps | Instrument Cluster | Refer to INTERIOR LIGHTING . . |
| U1243 | SCP (J1850) Invalid or Missing Data for Exterior Environment | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1249 | SCP (J1850) Invalid or Missing Data for Time/Date | ABS Module | Refer to ANTI-LOCK CONTROL . |
| U1262 | SCP Communication Bus Fault | Instrument Cluster | Go To PINPOINT TEST O: NO STANDARD CORPORATE PROTOCOL (SCP) NETWORK COMMUNICATION . |
| U1262 | SCP Communication Bus Fault | ABS Module | Go To PINPOINT TEST O: NO STANDARD CORPORATE PROTOCOL (SCP) NETWORK COMMUNICATION . |
| U1262 | SCP (J1850) Communication Bus Fault | SJB | Go To PINPOINT TEST O: NO STANDARD CORPORATE PROTOCOL (SCP) NETWORK COMMUNICATION . |
| U1950 | UBP Communication Bus Fault | DSM | Go To PINPOINT TEST M: NO UNIVERSAL ASYNCHRONOUS RECEIVER-TRANSMITTER (UART)-BASED PROTOCOL (UBP) NETWORK COMMUNICATION . |
| U2051 | One or More Calibration Files Missing or Corrupt | Power Liftgate Module | Refer to MODULE CONFIGURATION . |
| U2051 | One or More Calibration Files Missing or Corrupt | SJB | Refer to MODULE CONFIGURATION . |
| U2362 | UBP Invalid Data from Node ID $98 | Climate Control Seat Module | Go To PINPOINT TEST J: THE DRIVER/PASSENGER CLIMATE CONTROLLED SEAT MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL . |
Factory Service Tools
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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.
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