1988 ford F150 Wiring Diagram | Free Wiring Diagram Assortment of 1988 ford f150 wiring diagram. A wiring diagram is a streamlined conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, as well as the power as well as signal connections between the gadgets. 1988 Ford F150 Fuse Box Diagram | Fuse Box And Wiring Diagram 1988 ford f150 fuse box diagram - thanks for visiting my website, this article will discuss concerning 1988 ford f150 fuse box diagram. We have accumulated many photos, with any luck this image works for you, and also assist you in finding the response you are looking for. Description : SOLVED: 1988 Ford F150 ignition wiring diagram - Fixya SOURCE: I picked up a 1988 Ford F150 6cy and the starter solenoid missing I have provided an image that will assist you and it will connect like so; 1. Connection 1 should have the Pos. (+) battery cable and all of the wires with the large eyelet connectors from the wiring harness connected to it, except for the large cable that runs down to the starter.