I know where your talking about...unfortunately I have to take care of a sick girlfriend this weekend...PM with your number and I'll give you a call. I'm tring to get ahold of some friends and they said that they dont want to touch the thing....unfortunately thats the way they work sometimes. I'm tring to find that dang anit theft relay....not having any luck. I seriously cant guess what is wrong with the car. Have you checked out the dealerships yet? Don't take the car there...just ask them about it and some things you can look for. I'm guessing they can't tell you whats wrong because they couldn't even tell me how many splines I had so I could order a custom clutch...GM mechanics are over rated sometimes!

 

The theft Deterrent Relay is mounted to the right side of the SIR bracket behind the Instrument Panel(I/P). The Theft deterrent module is in the I/P carrier(dash) just right of the radio attached to the air bag bracket.

 

whats what that thing was..i was tring to find it but its dark out side right now...something could have happened with his Delco Loc II or Theftloc audio system maybe? I'm just taking random stabes in the dark here.


In all honesty....you might have a bad lock cylinder thats all!

 

He has another thread saying that he's blowing his PCM fuse. It's all interrelated. That same fuse feeds the Theft deterrent system and other things, all of which will keep your car from starting. I think he pinched a wire somewhere.

 

Your probably right...I just wasnt too sure what all is going on with all the theft devices...my best friends dad is a master mechanic and he said that it could be pinched...or lock cylinder, or he might have turn the loc out feature on unknowingly and thats what could also be causing the problem. He's a real smart you know what too and he said check your voltage as well...

 

Damn this is where the electtrical knowledge would come in hand but i have none. I just took the whole dash out again and am looking for a wire that has been cut or pinched. although I dont see how a cut or pinched wire that is causing the fuses to blow would also set off the security light.

Wiring is such a headache. + evey time i try to start it it eats a fuse.

 

If a hot wire is pinched to ground it will blow a fuse. If it helps at all, the wire that feeds the Theft deterrent Module, Fuel pump relay, PCM, and MAF is Pink. You could disconnect each system untill you isolate the short then go from there. What you really need is a diagram of the different systems related to that fuse. Just don't substitute a larger fuse or you will burn something.

 

I have the Service manuals. I went through and checked all the wires and could find nothing wrong. the only thing I know to do is try to bypass the VATS key modual with a resistor. Is it worth the time to go rent a hub puller and look at the key wire in the steering colum or just try to bypass it.

Why dont they make cars simple like they used to.

Another thing i might be able to do is though LT1 edit. I have it but im kinda afrait to try to use it. I dont want to mess up the PCM for sure.

 

You would be doing it for nothing. If your fuse is blowing then no power is getting to the Theft Deterrent Module. This will cause the light to be lit. The light is throwing you in the wrong direction. It could be a faulty Module or even one of the other things associated with that fuse. Check them all. A meter helps, a friend with trouble shooting skills helps even more. If you have the drawings, check all the systems. It has nothing to do with your ignition switch. I'm 99% sure of that. If you are getting frustrated then the best thing to do is sleep on it and tackle it tomorrow with a fresh mind and attitude. Good luck.

 

Think about what you were doing with the car before the problem started and look in that direction.

 

You did plug in the little connector from the steering column that goes to the VATS, right? You spoke of bypassing it.

You don't need to worry about the theft deterrent relay if the security light is on.

You need a meter or a test light to find out why your fuse is blowing. If you have the factory manuals, you should have all the info you need to trace it.

 

I think your on the right track with it being before the VATS sys. That makes sense why the Fuse blows. although finding where to fix it will be next to impossible for me, id almost rather just sell the damn car.

 

Any ideas on where and how to test where it is shorting out at? I have never done anything like this before so its like shooting in the dark for me.

 

Can you tell me what you were doing with the car before all this happened? Meanwhile, I will study the circuits and try to come up with a simple plan for you.

 

It is the #5 Fuse for a 1995 Z28 teh PCM ING fuse.

I was doing a lot of stuff to it. I parked it in Feb to do work on it and it took a lot longer than i though. I Put in Hookers LTs, Dual Exhaust, Plugs/wires, Intake 58MM TB, 1.65 RRs, LT4 KM, and an intake elbow.

I removed: A/C, heater, ABS/Cruise Control ASR, AIR, Radio and both airbags.

The only wiring i did was changing from the Chevy wiring harnness for the guage cluster to a pontica which was just unpluging the wires and pluging them to the pontiac harness no biggie and i did it right.

After everything was good to go i put the battery in and noticed the security light was on. I turned the key and all the lights and guages worked + all the other lights in the car. So i decided to try to crank it and thats when the fuse blew.

So now im stuck. I removed the dash again to look for any messed up wires but have found nothing after makeing sure everything was connected i tried again and blew the fuse again.