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.
2002 Ford Excursion 2WD V10-6.8LFACTORY OEM SERVICE PROCEDURE
Module Communications Network
1. Verify the customer concern.
2. Visually inspect the following for obvious signs of electrical damage:
VISUAL INSPECTION CHART
Electrical
^ Central Junction Box (CJB) fuse 12 (20A)
^ Wiring harness
^ Connectors
3. If the concern remains after the inspection, connect the diagnostic tool to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
^ check that the program card is correctly installed.
^ check the connections to the vehicle.
^ check the ignition switch position.
If the diagnostic tool still does not communicate with the vehicle, go to Pinpoint Test K.
4. Go to Pinpoint Test PC. Pinpoint Test PC (Precheck)
2. Visually inspect the following for obvious signs of electrical damage:
VISUAL INSPECTION CHART
Electrical
^ Central Junction Box (CJB) fuse 12 (20A)
^ Wiring harness
^ Connectors
3. If the concern remains after the inspection, connect the diagnostic tool to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
^ check that the program card is correctly installed.
^ check the connections to the vehicle.
^ check the ignition switch position.
If the diagnostic tool still does not communicate with the vehicle, go to Pinpoint Test K.
4. Go to Pinpoint Test PC. Pinpoint Test PC (Precheck)
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.