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
Power Windows DTCS
FRONT ELECTRONIC MODULE (FEM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action/Go to |
|---|---|---|---|
| B1243 | Express Window Down Switch Circuit Short to Battery | FEM | Go to PINPOINT TEST F: THE ONE-TOUCH DOWN FEATURE IS INOPERATIVE . |
| B1304 | Accessory Delay Relay Coil Circuit Short to Battery | FEM | Go to PINPOINT TEST B: ALL POWER WINDOWS ARE INOPERATIVE . |
| B1342 | ECU is Defective | FEM | INSTALL a new FEM. Refer to MULTIFUNCTION ELECTRONIC MODULE . |
| B1349 | Heated Rear Window Relay Short to Battery | FEM | Go to PINPOINT TEST G: THE REAR WINDOW WILL NOT DEFROST . |
| B1404 | Driver Power Window Down Circuit Open | FEM | Go to PINPOINT TEST C: A SINGLE POWER WINDOW IS INOPERATIVE - DRIVER FRONT . |
| B1405 | Driver Power Window Down Circuit Short to Battery | FEM | Go to PINPOINT TEST C: A SINGLE POWER WINDOW IS INOPERATIVE - DRIVER FRONT . |
| B1407 | Driver Power Window UP Circuit Open | FEM | Go to PINPOINT TEST C: A SINGLE POWER WINDOW IS INOPERATIVE - DRIVER FRONT . |
| B1408 | Driver Power Window UP Circuit Short to Battery | FEM | Go to PINPOINT TEST C: A SINGLE POWER WINDOW IS INOPERATIVE - DRIVER FRONT . |
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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