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Discussion Starter · #1 ·
My 02 Taurus was working fine, except the instrument panel backlight died completely after being intermittent for months. I pulled the dash apart (radio out, Trim panels, etc), removed the cluster, cleaned the contacts a bit, tested it again before I put it back together and bingo, cluster lights were good again. While I was in there, I had a bulb that needed attention, so I drove the car with the cluster loosely installed to the parts place, pulled it out, went in to get my bulb, put it back in, and went home to reassemble. Somewhere in there, something went terribly wrong. I'm certain I installed all of the connections properly, ALL that works now is are instrument panel lights, heater, and power seat ! The car still seems to run and shift fine, but here is what now isn't working:
-No Power Windows
-No Power Locks
-No Windshield Wipers
-No Speedometer
-No Radio
-Airbag light blinks initially then stays on
-Hi Beam indicator stays on when the vehicle and lights are off, then works backwards when the lights are actually on (illuminated when low beams are on, off when high are on)
-No Brake lights other than 3rd one in rear window
-No Interior lights
-Theft Indicator is blinking

I haven't found any blown fuses. I have to assume something I did caused this, but the connections all seem fine. Maybe I cooked a control module somewhere by hot plugging the panel ? It's like the whole "accessory" system has lost it's mind.

Any thoughts or suggestions where to start ? I'm good with electrical circuits, but the absence of a wiring diagram or service manual make it a bit of a challenge. Any suggestions or assistance would be greatly appreciated.

Thanks in advance.
 

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Hi, I would look to see if you didn't pull loose the connector to the ignition switch; [note: these connectors are also known for melting] Then I would look for a bad ground to the cluster.
 

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Discussion Starter · #4 ·
Thanks for the reply guys. The diagrams will be VERY helpful, and I'll definitely take a look at the switch. I had to manhandle that area a bit to get the column covers back on. Maybe I dislodged something. Much appreciated.
 

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My 02 Taurus was working fine, except the instrument panel backlight died completely after being intermittent for months. I pulled the dash apart (radio out, Trim panels, etc), removed the cluster, cleaned the contacts a bit, tested it again before I put it back together and bingo, cluster lights were good again. While I was in there, I had a bulb that needed attention, so I drove the car with the cluster loosely installed to the parts place, pulled it out, went in to get my bulb, put it back in, and went home to reassemble. Somewhere in there, something went terribly wrong. I'm certain I installed all of the connections properly, ALL that works now is are instrument panel lights, heater, and power seat ! The car still seems to run and shift fine, but here is what now isn't working:
-No Power Windows
-No Power Locks
-No Windshield Wipers
-No Speedometer
-No Radio
-Airbag light blinks initially then stays on
-Hi Beam indicator stays on when the vehicle and lights are off, then works backwards when the lights are actually on (illuminated when low beams are on, off when high are on)
-No Brake lights other than 3rd one in rear window
-No Interior lights
-Theft Indicator is blinking

I haven't found any blown fuses. I have to assume something I did caused this, but the connections all seem fine. Maybe I cooked a control module somewhere by hot plugging the panel ? It's like the whole "accessory" system has lost it's mind.

Any thoughts or suggestions where to start ? I'm good with electrical circuits, but the absence of a wiring diagram or service manual make it a bit of a challenge. Any suggestions or assistance would be greatly appreciated.

Thanks in advance.

:hit::hit:
Hello and good day:

I had something similar happen like this to my 99 Ford Escort...I checked all of the Fuses First..nothing. Then I checked the Battery...nothing...Then I checked the Alternator...I found a corroded, loose connection.

Fixed and repaired the Alt...but was still getting the same problem...I then called a Friend that works at a local Ford Dealership...and was advised that it had something to do with the Security System...and it needed to be reset...we had to reset the PCM because it believe the car was being stolen.

I disconnected the Neg ground from the Battery for 6 min, and then reconnected it...that did the trick!!!

When you check the Alt..make sure you have the proper AMP's being generated.
 

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Discussion Starter · #6 ·
Disconencted the negative lead of the battery for 24 hours. No change there.

Had another thought...I drove the vehicle around for probbably 10 miles or so without the cluster plugged in while I was driving aorund looking for a bulb before I put it back together. The Odometer is of course in the cluster. Any chance that could have wigged the car out and locked out all of the systems somehow ?

I haven't had any time to work on it since my last post, but man...there just wasn't that much to it....a few connectors is all...

........
 

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Discussion Starter · #8 ·
Bad news and Good news.....

First the bad news.... I'm an IDIOT...

Now for the good news....it is FIXED!!! Everything.

All of your inputs were very helpful. After rethinking it all, double checking all of my connections and wires, and studying the wiring diagrams that you guys had pointed me to, "most" of the things I had a problem with had some relationship to the GEM in the diagrams. I took one last look at the fuses specifically concentrating on the ones related to the GEM and BINGO. I had missed it somehow. The GEM power fuse was blown. I'd never have thought it to have affected EVERYTHING that it did, but that was the case. ALL of the things I listed at the beginning of this thread are now working, and of course my instrument panel lights as well, which are what I originally set out to fix. In hindsight, I suspect it blew while I was driving around with the panels pulled. A previous owner had hacked into the harness under the column to install a stereo I assume. One of the lead "hacks" was not taped and had bare wires exposed. I noticed it and thought I'd just be careful and not bmove it and I'd insulate it when I put it all back together. I did, but I suspect I bumped it and shorted it to ground at somepoint beforehand while driving around or climbing in and out, and as such took out the GEM power fuse. Must have been what happened.

I learned alot along the way, and all of your help and comments were very valuable. Thanks to all of you so very much. I sincerely appreciate it.

:hy::hy::hy::hy::hy::hy:
 

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Hi, I would look to see if you didn't pull loose the connector to the ignition switch; [note: these connectors are also known for melting] Then I would look for a bad ground to the cluster.
Currently mines having no speedo no blinkers no locks or windows and my ground looks bad on the speedo was working fine before i fixed the til it had two tethers crossed so i think the act of me closing the circuit caused the ground to fry
 

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That post was from 2010, might be best to start anew with your own post, explaining what's going on and what you've done so far.
 
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