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.
2003 Ford Windstar BaseFACTORY OEM SERVICE PROCEDURE
Instrument Cluster DTCS
INSTRUMENT CLUSTER MODULE (ICM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action/Go to |
|---|---|---|---|
| B1676 | Battery Voltage Out of Range | IC | PINPOINT TEST A |
| B2586 | Head Lamp Mode Circuit Failure | IC | PINPOINT TEST J |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | PCM | CARRY OUT the PCM self-test. |
| U1043 | SCP (J1850) Invalid or Missing Data for Traction Control | ABS/TC | CARRY OUT the ABS/TC self-test. |
| U1051 | SCP (J1850) Invalid or Missing Data for Brakes | ABS/TC | CARRY OUT the ABS/TC self-test. |
| U1073 | SCP (J1850) Invalid or Missing Data for Engine Coolant | PCM | CARRY OUT the PCM self-test. |
| U1123 | SCP (J1850) Invalid or Missing Data for Odometer | ABS/TC | CARRY OUT the ABS/TC self-test. |
| U1131 | SCP (J1850) Invalid or Missing Data for Fuel System | REM | PINPOINT TEST B |
POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action/Go to |
|---|---|---|---|
| P0457 | Fuel Fill Cap Off | PCM | PINPOINT TEST U |
FRONT ELECTRONIC MODULE (FEM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action/Go to |
|---|---|---|---|
| B1308 | Oil Pressure Switch Circuit Short to Ground | FEM | PINPOINT TEST Q |
| B1462 | Safety Belt Switch Circuit Failure | FEM | PINPOINT TEST G |
| B1482 | Wiper Washer Fluid Level Senser Circuit Short to Ground | FEM | PINPOINT TEST K |
| B2479 | Brake Park Switch Circuit Short to Ground | FEM | PINPOINT TEST I |
| C1189 | Brake Fluid Level Sensor Input Short Circuit to Ground | FEM | PINPOINT TEST I |
REAR ELECTRONIC MODULE (REM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action/Go to |
|---|---|---|---|
| B1201 | Fuel Sender Circuit Failure | REM | PINPOINT TEST B |
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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