Will not start I think it is the security system

Tiny
A-JINXX
  • MEMBER
  • 1993 BUICK PARK AVENUE
  • V6
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
I took apart the steering column to do some work I put it back together and now the car won’t start. The electrical works all the lights work but it won’t crank over. I took the steering column apart once more to make sure no wires were broke and they all looked fine to me. So I’m thinking I triggered the security system somehow and I can’t seem to fix it. Please help me.
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Sunday, April 14th, 2019 AT 7:07 PM

11 Replies

Tiny
HEYMAN1104
  • EXPERT
Well you might just need to run the relearn procedure. I'm attaching some images that I pulled off of the web. They are a set of instructions for relearn procedures for all of GM's theft deterrent systems. Run the one for whichever Passkey iteration that you have (probably the original Passkey) and we'll go from there.

Thanks for using 2CarPros. Good luck and let us know anyways.

Harry
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Sunday, April 14th, 2019 AT 9:10 PM
Tiny
A-JINXX
  • MEMBER
I tried that one already and either I didn t do it right or it didn t work. I added a video to show what the problem is.
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Monday, April 15th, 2019 AT 6:41 AM
Tiny
A-JINXX
  • MEMBER
  • 1993 BUICK PARK AVENUE
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 2,204,350 MILES
I put key in ignition and turn it to on all the electrical works, but when I turn it to start the car everything cuts out. I will attach a video showing the issue.
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Wednesday, April 17th, 2019 AT 11:40 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Welcome to 2CarPros.

I believe this is an easy fix. What you described sounds like a weak connection at the battery. Make sure the terminals are clean and tight.

Take a look at this link:

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

Let me know if that helps.

Joe
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Wednesday, April 17th, 2019 AT 11:40 AM (Merged)
Tiny
A-JINXX
  • MEMBER
  • 1993 BUICK PARK AVENUE
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
I ve asked twice now and all methods given didn t fix anything. I am still having the same issue, where when the keys on run all the electrical works but when I go to start the engine it shuts down. I ll post a video attachment so you can see the issue. Please help me I need my car running.
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Wednesday, April 17th, 2019 AT 11:41 AM (Merged)
Tiny
CARADIODOC
  • EXPERT
If everything goes dead, similar to having no battery in the vehicle, follow the smaller battery positive wire to the under-hood fuse box and be sure that connection is clean and tight. Follow the smaller negative battery wire to the body and be sure that one is tight and not rusty.

Rather than reposting the same problem multiple times, please stick to this one until we get this solved. I can get other experts involved if we need bigger brains.
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Wednesday, April 17th, 2019 AT 11:41 AM (Merged)
Tiny
A-JINXX
  • MEMBER
It doesn't go completely dead the dash lights stay on but every other electronic goes dead when I go to crank it.
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Wednesday, April 17th, 2019 AT 11:41 AM (Merged)
Tiny
CARADIODOC
  • EXPERT
The stuff going dead might be a misleading clue. Things like the heater fan, radio, and wipers get turned off in the "crank" position by the ignition switch. That switch might be out of adjustment just enough that the rod isn't moving it quite far enough to hit the last contact for the starter system. To check for that, look for 12 volts on the yellow wire at the ignition switch when it's in the "crank" position.

If you do find 12 volts on the yellow wire, feel if the starter relay is clicking when a helper turns the ignition switch. If it is, the neutral safety switch is the best suspect. This is the first time I've seen a starter circuit with a relay and the neutral safety switch is in the relatively high-current starter solenoid circuit. There can be 10 - 15 amps flowing through the ignition switch and neutral safety switch. That is asking a real lot of the neutral safety switch, and it makes a relay pointless. Try cranking the engine after moving the shift lever around the "neutral" position.

If you have 12 volts on the yellow wire and the relay does not click, this is an anti-theft system problem as others have suggested.
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Wednesday, April 17th, 2019 AT 3:11 PM
Tiny
A-JINXX
  • MEMBER
I ran a scan and the only code that popped up is 12 and as far as I know that means the system diagnostic is running fine, but when the scanner is in the engine cooling fan in the front of the car turns on. Is that normal for a 1993 Buick? The car started in park five or six times before it started doing this.
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Wednesday, April 17th, 2019 AT 4:45 PM
Tiny
CARADIODOC
  • EXPERT
I thought we were working on a cranking problem. We need to know where a voltage is missing to figure out which circuit we need to diagnose.

Things can happen when a scanner is connected. Fords of that era are much worse. All kinds of things happen on those as the scanner puts the computer through a series of initial tests to see how it responds.
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Wednesday, April 17th, 2019 AT 6:20 PM
Tiny
A-JINXX
  • MEMBER
I m trying to find out what the problem is I mean I read that a poor battery connection could cause it to not start and my Buick has 2 positive cables that I have to put a long bolt through with a spacer but the bolt barely fits in the battery after I do that so could it be just a weak connection? Cus all the electrical (fan, radio, seats, windows, lights, all work until I turn it to crank and it all shuts off till I put it to run and while I crank there s a noise in the top of the motor
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Wednesday, April 17th, 2019 AT 6:27 PM

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