Re: 1999 lincoln navigator electrical problem
Alright, I got a wiring diagram of all the affected areas of the problem. The starting system doesn't go through the GEM at all, so wherever the problem is, i'm almost certain it's not the GEM.
I should add that the starter, the starter relay, and the ignition switch are all brand new.
Fuse #21, which is a 15amp fuse in the fuse panel, when removed, causes the starting system to not work from the ignition switch (You can still start the car by holding the key in start, and jumping the relay at the firewall), but once the fuse is put back in and the car is running, the starter keeps trying to engage. It comes from start on the ignition switch to the 15amp fuse at the fuse panel, which on the navigator, links fuse #20 and #21 together, than outputs it to the starter interrupt relay to be used with the remote anti-theft personality module, and down to the DTR (digital transmission range) sensor, so I am not sure what's causing the starter to keep wanting to engage. It appears that something in the starting system isn't getting the signal that the car is actually started, or two wires are shorted out together somewhere. As I stated, according to the wiring diagram, the starting system isn't used in the GEM at all, so I don't think that the problem lies with a faulty GEM. (Not to mention none of the other GEM systems are affected, like the power windows, the instrument cluster lights and the gauges). I am doing further investigating of the wiring diagrams to see what lines are shared commonly between the starting system and the rest of the electrical system that could be putting a constant feed into the system regardless of the key being in the ignition or not.