Ford wiring colors and locations for car alarms, remote starters, car stereos, cruise controls, and mobile navigation systems.. A wiring diagram that illustrates the starting circuit for a 2003 Ford Expedition. The diagram provides technical details about the connection and operation of the vehicle's starter motor and ignition switch.
![[DIAGRAM] Ford Expedition Electrical Wiring Diagrams](http://detoxicrecenze.com/wp-content/uploads/2018/08/2002-ford-expedition-engine-diagram-wiring-diagram-electrical-wiring-diagram-best-repair-guides-of-2002-ford-expedition-engine-diagram.jpg "[DIAGRAM] Ford Expedition Electrical Wiring Diagrams")
Hi , yep the link above is a good diagram ,most starting problems are ground related. Check the wire from the starter to the frame below the exhaust manifold on the passengers side. the wiring runs from the battery to the solenoid on the baulk head then down to the starter.. Troubleshoot Ford starting system issues with a comprehensive wiring diagram. Download the PDF and test for power and ground.