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 Excursion 4WD V8-6.0L DSL TurboFACTORY OEM SERVICE PROCEDURE
Control Module: Service and Repair
Four-Wheel Drive (4WD) Control Module
Removal
CAUTION: Prior to removal of the Four-Wheel Drive (4WD) control module, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be downloaded into the new module once installed.
1. Disconnect the battery ground cable.
2. Open and lower the glove box compartment.
3. Disconnect the connectors from the 4WD module.
4. Remove two nuts, one bolt and the 4WD module.
5. CAUTION: Once the new 4WD control module is installed, it is necessary to download the module configuration information from the diagnostic tool into the new module.
To install, reverse the removal procedure.
Removal
CAUTION: Prior to removal of the Four-Wheel Drive (4WD) control module, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be downloaded into the new module once installed.
1. Disconnect the battery ground cable.
2. Open and lower the glove box compartment.
3. Disconnect the connectors from the 4WD module.
4. Remove two nuts, one bolt and the 4WD module.
5. CAUTION: Once the new 4WD control module is installed, it is necessary to download the module configuration information from the diagnostic tool into the new module.
To install, reverse the removal procedure.
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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