Last post on Oct 21, 2013 at 9:45 AM
You are in the Pontiac Grand Am
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Pontiac Grand Am, Security System, Sedan
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For those experiencing the security passlock problem, please see long-time member lovemygrandam's GM Security Passlock Fix tutorial.
#1004 of 1283 Re: FYI Passlock Security Issues/Starting problems/2005 Grand Am [sully2112]
Jul 11, 2011 (8:34 am)
Thank you David! You saved me (and my husband) a lot of money, time, and stress. I have a 1998 Pontiac Grand Am. I drove my car to work this morning and everything was fine. When I got out and tried to lock the doors the power locks wouldn't work and that worried me, so I got back in my car and tried to start it. Nothing except a clicking sound. The accessories worked and the anti theft light was on, along with all the other warning lights on the dash. I called my husband in a panic and he was going to drive 35 miles to come and work on it before he had to go to work second shift. I searched the web and found your post and followed your instructions. My car did the same thing you described after turning the key to on for 15 minutes. I started it again and again and it started fine. Thank you so much! My husband got to go back to bed instead of driving 35 miles or so to come and work on my car. Anyone else who has this problem with a 1998-2005 Grand Am should listen to your advice before they spend any time and money fixing other things that may not be broken! You rock David!
#1005 of 1283 Re: FYI Passlock Security Issues/Starting problems/2005 Grand Am [nikisam]
Jul 14, 2011 (4:39 am)
What you describe as your symptoms sounds like a low battery. If your battery voltage drops below 10 volts while trying to start, it could cause all the symptoms you describe, including the clicking under the hood but the starter not turning over, and the Passlock system getting a "false failure" since under low voltage conditions, the BCM would not be able to read the correct signal from the ignition key.
If I were you, I would disconnect the battery cables from the battery and check for corrosion. Clean the contact points on both the battery and cables, and re-connect them. Then test your battery by trying to start the vehicle 3 or 4 times in quick succession. If the battery is OK, you should have no problem starting at least 6 times in rapid succession.
#1006 of 1283 Preferred Fix Questions
Jul 14, 2011 (6:52 am)
1. Will this work on my 04 Grand Am?
2. Is it easier to do the fix by the radio or at the BCM?
3. Do I need to disconnect the battery (I didn't see that step in the Preferred Method)?
4. After cutting the 2 wires from the ignition and installing the resistor on the wires to the BCM, what do I do with the 2 cut ends at the ignition? Thank you.
#1007 of 1283 Re: FYI Passlock Security Issues/Starting problems/2005 Grand Am [nikisam]
Jul 14, 2011 (4:31 pm)
You are very welcome. There are those that question the problem I had, but that does not mean it did not happen that way. I am nearly positive the problem I had is with the passlock security system, but I have read that it just can not be. Well, I disagree.
In your case it would be wise to double-check the battery (remove it and get it tested), lovemygrandam may be correct. It may be a sign your battery is on its last legs. Also, there are posts on this forum that may help you bypass/disable the security system if choose to do so.
I am still trying to find a way to disable the security system in the 2005 grand am that has the problem.
Anyway, again I am glad it worked for you. Take care.
#1008 of 1283 Re: FYI Passlock Security Issues/Starting problems/2005 Grand Am [lovemygrandam]
Jul 16, 2011 (8:31 am)
Thank you for the advice. My husband took my car today (it doesn't seem to like him) and he is still stuck. He tried the 15 minute passlock reset and it didn't work. He kept trying it and now the battery is dead and the key is stuck in the ignition. He now has to wait for his dad to get there with jumper cables (he accidentaly took the keys to his truck with him, where our jumper cables are so I can't help) so they can jump the car hopefully and get it home where his tools are so he can do what you advised. I hope it works. If you have any more or better advice for us to get it started than jumping it let me know. Thanks!
#1009 of 1283 Re: FYI Passlock Security Issues/Starting problems/2005 Grand Am [sully2112]
Jul 16, 2011 (8:37 am)
I think lovemygrandam is correct because of what happened today. I have read a lot on many different websites and it does not seem that there is a way to completely disable the security system in Grand Ams without taking it to a dealership or buying an expensive kit that may or may not work. Good luck to you and hopefully you find a way to disable it. I will get my battery checked (as soon as my husband can get the car home) and hopefully that will solve my problem. Thanks again:)
#1010 of 1283 Help with Preferred Fix for 2004 Grand Am
Jul 19, 2011 (7:55 am)
OK. I'm ready to start on the Passlock Preferred Fix, but I have three questions. 1. Do I need to disconnect the battery and if not, 2. does the car need to be running when I cut the yellow wire? And 3. After cutting the yellow and black, do I do anything with the two ends attached to the ignition?
Thanks in advanced for your help.
#1011 of 1283 Re: Help with Preferred Fix for 2004 Grand Am [abruc]
Jul 19, 2011 (6:52 pm)
1. You don't have to disconnect the battery, but it's a good Idea anyway.
2. The car doesn't need to be running when you cut the black and yellow wires, since you are going to do the relearn procedure after substituting the resistor into the circuit in place of the passlock module.
3. use either of these two procedures:
I would suggest the second procedure if you have some experience with soldering. If you do, then note that it's OK to cut the black wire, rather than just scraping off insulation. Just make sure the resistor you install is connected to the wires that come from the BCM, not the ones that go to the ignition module.
The black and yellow wire ends that go to the ignition module can be left not connected to anything. it's a good idea to tape them so there are no bare ends.
#1012 of 1283 Re: Help with Preferred Fix for 2004 Grand Am [lovemygrandam]
Jul 20, 2011 (9:06 am)
I've got it apart, BUT my 2004 Grand Am has the Alero ignition and harness setup, etc., Can I still use the (non-solder) Fix?
P.S Is it possible this is a Passlock II and is that going to be a problem?