Cadillac Repair: 92 Eldo Dash went blank when I tried to roll the window down, volt ohm meter, inner fender


Question
QUESTION: I have replaced the dash before due to the temp controls no longer working (display and settings didnt work).  This is a whole new level of strangeness.  No dash (not entirely true... idiot lights work), no spedo, tach, fuel or digital portions.  This all happened when my son tried to roll the drivers window down... the trans also is not working right, lost first gear and O/D only 2nd and 3rd remain... and you have to manually shift.  Any ideas?  This one kind of stumped me...

ANSWER: I have been out of town, Do you still need help ?.

---------- FOLLOW-UP ----------

QUESTION: yes, I am still stumped by this one.

ANSWER: IS or HAS the CHECK ENGINE light ever illuminated while driving the vehicle and or has any other lights illuminated or any messages from the message display center ?.

What work or diagnostics of ANYKIND WHAT-SO-EVER have been performed on the vehicle trying to fix this problem ?.


---------- FOLLOW-UP ----------

QUESTION: The check engine light was not on, however is on now.  I am unable to pull codes as the display is no longer working.  The car did have an issue with a short (my guess... the alternator, or more specifically the rectifier), I have verified that the ground strap at the starter is sill in good shape, i checked all of the fuses under the plastic cover on the inner fender well, as I have had corrosion issues before which caused the dash to go out.  I just cant imagine why the windows quit working, and caused the dash to go out.  That is pretty much the extent of my troubleshooting to date.

Answer
If you are mechanicaly inclined or know of someone who is, You will need a DIGITAL VOLT/OHM METER, Simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information necessary to fix your vehicle.