1989 Wiring Diagrams
The pages in this file are laid out like a map with locators. The numeric
columns and alphabetical rows help users find a particular place in the wiring.
There is a folder link here Ford 1989 Mustang Wiring
For example you might see this when looking at the index:
Let’s say we want to find the alternator regulator. We see from the Index
page it is (C-10). That would be in the number group 10, found in 1-11.jpg in
the Index of /1989 page:
When you click on 1-11 link you just find row C and move across to column 10.
Or find column 10 and move down to row C.