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priority door setup gone bad


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icarus_icarus 
Copper - Posts: 229
Copper spacespace
Joined: November 01, 2005
Location: Ontario, Canada
Posted: April 07, 2007 at 11:50 PM / IP Logged  

I think I fried my Keyless Entry module in my '94 Lincoln Mark VIII :(

I included these diagrams below to show y'all what I'm playing with, and if you look at the bottom of the first one, you'll see the wires I touched... I'm attempting to hook it up in a priority door setup with my Compustar 2W900FSAS (CM3000-V.3)... and it's not going to well, lol...

While testing, being absent minded as I am, I applied a 12V jumper to the R/O (163) wire and it did nothing. So silly me tried 12V on the PK/BK (117) wire. Then I realized that I had not applied a ground to the other side, but figured it rested at ground and wouldn't hurt it... well I was wrong and now my Keyless entry doen't lock or unlock the doors at all (via switches, remote, or anything!) The trunk release and all other functions of the keyless entry work still. I hear it click slightly when I hit lock/unlock. I seperated the motor leads and applied a ground to one side and 12V to the other and the solenoids still lock (if I reverse them, they unlock) so they aren't fried...

priority door setup gone bad -- posted image.

Now this is what I thought I was trying to accomplish:

priority door setup gone bad -- posted image.

Anyone see why I screwed up?

Thanks,

Jon

·Ï¢årµ§·
priority door setup gone bad -- posted image.
icarus_icarus 
Copper - Posts: 229
Copper spacespace
Joined: November 01, 2005
Location: Ontario, Canada
Posted: April 08, 2007 at 12:15 AM / IP Logged  

ps: I tried disconnecting battery to get the module to work again to no avail, I have another module on the way...

If anyone could offer some advice so I don't fry this new module I'd appreciate it!

·Ï¢årµ§·
priority door setup gone bad -- posted image.
Mike M2 
Platinum - Posts: 2,652
Platinum spacespace
Joined: June 29, 2005
Location: United States
Posted: April 08, 2007 at 8:31 AM / IP Logged  
First thing to do is check EVERY fuse in the car. I've noticed Ford products can be funny in that a fuse labels to do one thing can cover lots of other stuff too. Also, install a fuse on the priority relay on terminal 30 to be sure it doesn't happen again...
Mike M2
Tech Manager
CS Dealer Services
icarus_icarus 
Copper - Posts: 229
Copper spacespace
Joined: November 01, 2005
Location: Ontario, Canada
Posted: April 08, 2007 at 1:05 PM / IP Logged  

Thanks for the help Mike. I did check every fuse in the ip panel and under the hood and even tested all with a meter and a fuse tester thinking I might have missed it. No fuses blown, just the module :( lol...

Do you think my diagram looks right? (the lower one for setting up the priority door locks?)

Thanks

·Ï¢årµ§·
priority door setup gone bad -- posted image.
mikvot 
Gold - Posts: 1,043
Gold spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: December 19, 2006
Location: Missouri, United States
Posted: April 08, 2007 at 1:15 PM / IP Logged  

nope, it's not correct. I'll tell you why, give me a sec.....nevermind, looked closer at the diagram, it is correct.

mikvot 
Gold - Posts: 1,043
Gold spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: December 19, 2006
Location: Missouri, United States
Posted: April 08, 2007 at 1:25 PM / IP Logged  
I'm assuming that you have the lock and the second unlock wires of the compustar goin to the (-) pink / YELLOW lock wire and the (-) pink/green unlock of the vehicle?
icarus_icarus 
Copper - Posts: 229
Copper spacespace
Joined: November 01, 2005
Location: Ontario, Canada
Posted: April 08, 2007 at 3:48 PM / IP Logged  

Yes I do :) I tested those with a ground jumper (before I killed my module) and they worked fine with a ground pulse.

I think it was the 12V on the motor lead without disconnecting it (via relay) that killed the module?!

·Ï¢årµ§·
priority door setup gone bad -- posted image.
icarus_icarus 
Copper - Posts: 229
Copper spacespace
Joined: November 01, 2005
Location: Ontario, Canada
Posted: April 09, 2007 at 8:18 AM / IP Logged  

I took the old module out today and pulled the cover off. I indeed fried a trace on it going to one of the relays onboard. :(

So any suggestions so I don't fry this new module coming?

Thanks again.

·Ï¢årµ§·
priority door setup gone bad -- posted image.
mikvot 
Gold - Posts: 1,043
Gold spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: December 19, 2006
Location: Missouri, United States
Posted: April 09, 2007 at 11:38 AM / IP Logged  
Don't do whatever you did before! JK......test all wires with a dmm......I don't usually use jumpers to test wires, but if you do, make sure to use a fuse on them. Hook up all of the wires per the diagram before testing the final product, and of course make sure there is fuse on the relay setup. 
icarus_icarus 
Copper - Posts: 229
Copper spacespace
Joined: November 01, 2005
Location: Ontario, Canada
Posted: April 10, 2007 at 3:46 AM / IP Logged  

I did use a dmm first before the jumpers, but thought I'd try out the system with a jumper to make sure (and it proved to be a bad idea, lol...)

What size fuse and where should I put it?

Thanks.

·Ï¢årµ§·
priority door setup gone bad -- posted image.
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