Okay so here is the background on my car, Its a 1991 RS originally a 305 tbi, now shes got a 350. Everything electronic is stock except one thing. Lojack, or at least thats what im told it is. Recently my car has been acting up. To start my car previously you had to pull the headlight **** out and than turn the key. However, recently it has not been working and when it doesnt work every time you turn the key the horn goes off. I had never had any previous experience with this system, or any electronics for that matter. So i went apart tearing the interior under the dash out trying to find the relay that was going bad, i knew it has to be a relay or at least a switch. Well i found it finally after hours of searching, it was on the strut tower in the engine bay, and for the last week or two, if the car would not start, so i would just pop the hood and tap the relay and it would fire right up.

Today after fixing my tps, i tried to fire the car up, and nothing. She sat for a week so i thought maybe the battery was dead, everything works fine and such though, so i thought maybe it had something to do with the new tps, put that old one on and still nothing, I have it narrowed down to this realy lojack thing. Basically i want it gone. I want this relay out of my electronic circut. It just looks like they spliced into the wiring in place already but im not too sure. I thought it would just be a relay i could go and buy at advance or pep boys but its like a whole little computer thingy.


And before you guys say flip the switch thats on the bottom of the unit, i tried that and nothing, if its an on off switch it doesnt turn off the relay or bypass it, it turns something else off.


Here is a close up of the wires, from what i can tell, the green and red go to the headlights, the black is a ground of some sort and the yellow looks to be a power source, the Brown wires and the brown wire with a yellow stripe come from the starter if i remember correctly. Could i just splice all these wires together? I dont see a gap in the circut from the harness, Its one wire in, and another wire out.

 

Yeah, get rid of it, splicing the original starter wires together. The other wires are not cut I guess and if so they can just be detached. Don't know what this thing is but it seems to work as a misconceived theft preventer, and/or a ditto driving light ensurer.. It's a simple circuit but as usual it has the potential of creating more hassle for the owner than the thief..
P.s. If you lose the horn you might have additional problems. There are two red wires (with fusible links on) going from the starter and into the car. One supplies the light switch and one supplies the ignition switch. Check them out.

 

people around here call them "trick starts" usualy the are hooked up to the rear defroster not the parking lights. it took a while but i got used to pulling customers cars in. you should just be able to splice them back together

 

I had a similar thing hooked up under the dash to the yellow wire but it was easy to yank it out and splice the wires back together. The car starts every time now

 

I tired splicing the wires together and nothing. The problem is there is no wires to splice together, other than the two brown ones which i cant trace back because they go into the wiring harness and they are not on any wiring diagrams and there is no similar wire to splice them to. Its one wire for each color leading into this box. I wouldnt feel safe splicing a red wire to a green one etc.....

 

Being that this is is an aftermarket gadget - the wires from the connector only extend a limited lenght into the harness, & the original wires are still in the harness - although the splices may have been taped over, making it look like the original harness taping. You'll find that the brown wires going into the harness are spliced into a thick purple wire that has been cut. Just unwrap some of the tape around the harness and I'm sure you'll find the splices.
But like I said you may have additional problems.

 

OK thanks ill check further into the harness, i looked into the harness yesterday also, undid some taping and it just looked like stock, i only went into it a little but but looks like i have some more digging to do. Im also assuming that the wires that go towards the headlights are spliced in the same manner.

Thanks for your input so far ill let you guys know what i find.

 

Im with fullsizewagon on this, pull your underdash panel off and remove the starter kill at the source that way it keeps your wiring clean and simple. on a 91 the starter wire is yellow, so if you are looking at your wiring it is the bigger gauge yellow wire coming down from the steering column (if memory serves it is just to the right of the column) it will probably be cut. just cut out what mess they put in and put it back to stock.

 

Ok so im going to undo the harness tomorrow, assuming the split is before the firewall in the engine bay, ill be looking for yellow or purple wires? I have had the whole car apart over the winter and did not notice any splices near the column but if i cant find it under the hood ill check it there. Once i find the splice for the thicker gauge wire, tackling the smaller wires will be a different story but i just want my car to start lol. And all that i need to do is cut out the splice put in by whoever put this **** in?

 

Yes, again, just follow the non-stock wires into the harness and I'm sure you'll find the splices within one foot. The brown ones will be spliced to a cut heavy yellow (or purple) wire and the others are just tapped into some others. The yellow has to be spliced real good while the others might just need some insulation after removing the splice-on's.
It's unusual that people cover up their work so good it looks like stock, but it could also imply that they did a good splice job.
But again also; does your horn work? If not then you have a problem with one of the power feed wires.

 

Yes the horn works, everytime the lights are not on when you try and start the car it goes off. I currently have it disconnected while the car is sitting because every time i turn the key it goes off.

 

So i went out today and ripped everything associated with this box i could fine out. Seems it was all under the hood. It went pretty far into the harness, and there was a splice on two wires leading up to the front of the car, im assuming one was for the lights and the other the horn. I reconnected every wire correctly and removed the box and all of the wires. I didnt have enough slack in the starter wires to splice them together so i used some of the brown wire that was used for the box. However now im still having the same problem. Car will still not start. I tried jumping it because i was listening to some music on it when i was working but nothing. All im getting is a click from the starter. No turning over no nothing. Im thinking maybe it is the starter? Because as far as i can tell everything with this box is gone. I can turn the key without the horn going off if the lights are not engaged and i have not blown any fuses or anything. Anyone got any ideas?