I think I need to reintroduce the problem in a different perspective after today's field day.
Lets break it down to something plain and simple, "The Door Locks Do Not Work."
Now the issue is occuring with both sides, so it isn't just a left or a right side issue.
It is not the buttons, they work fine and show that they are working since they cause other things to happen.
Taking into consideration, by pressing these non-working, working doorlock buttons to the unlock or lock position it will cause the dashlights to sometimes come on, it will cause the dash clock to go from regular daylight brighteness to a dim brighteness (as if you pulled the headlight knob out to turn on the headlights). It does not effect the headlights. If the door is open while pressing the lock button the door chime will signal.
I do not have any security alarm, ever, factory or otherwise, nor does my car have remote-keyless entry (it has the harness but no module).
Some things I do plan to try are getting a remote keyless entry module tomorrow from a car I was messing with in the salvage yard and see if that can cause anything different or if the function will work at all.
I'm trying very hard to not have to take out the dash to fully expose the wiring harness that runs behind the dash and kick panels. I've inspected most wiring that is visible from laying underneath the dash and in the kick panel which all appear to be in decent-good condition.
The question of if I was getting power to the door locks was asked, and honestly I don't know. I used a test light on all 4 connectors for the driver side window button to check and no the light never lit up (i tested the light prior to), but again, the door lock buttons are still activating things in different manners.
I'm taking into consideration that the dome lights nor visor lights do not work, this could or could not be related and that most of these functions I've described deal with security system or running lights being on.
Any more thoughts anyone wants to toss out there?
Schematics?
I feel stuck, even though there's more for me to try/do. But I really just want one solid lead.
(As incentive for when this gets fix, I promise to post a burnout video on my new-to-me DRs)
edit: a few more things I wanted to note for consideration purposes
my air bag light is on and I do get the three beeps associated to show they're not working, I believe.
Most of these things are on the same fuse or circuit in general.
Is there any other common wiring issues such as melting (except for at the headlight switch) that occurs with our cars?
http://www.veryuseful.com/mustang/tech/engine/images/Mustang-94-95-Eng-Fuses-Door-Controls.gif
For anyone's reference, this is the door lock diagram without keyless entry.
It's pretty self contained, exactly like that. I could check continuity between the circuits, but it appears that they're still connected since either causes the same issue.
I'm going to check for power once more at black/white. If there isn't power, I'll check the fuse again. If the fuse is intact, then the issue should supposedly be between the master window/door lock control switch and the fusebox along black/white.
If this isn't the case then I'll check for power to pink/orange and/or pink/black to see if the motors are getting power while pressing the button. If they aren't getting power then I should assume the issue is between the door lock motor(s) to the passenger side control switch. If they are getting power, and aren't working I should assume that both motors have gone out (stranger things have happened).
But as I've said pink/yellow and pink/light green seem to be intact running either way since I can atleast see something happen by grounding them out when clicking the button. Then again, the issue could be along these wires (god I hope not) running from side to side behind the kickpanel and up into the main dash harness.
Is all of my logic sound?
And finally, where does the ground end/located for the door locks, I figured I should make sure it's grounding out properly and not causing some crazy issues.
Anyone have the same diagram but with the keyless entry?
I should mention, I'm a self-taught novice at electric wiring and my understands are basic.
