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Pontiac Grand Am Security Passlock Problems

737 messages,  Last post on Nov 25, 2009 at 11:33 AM

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#675 of 737 1997 Pontiac Grand Am SE3.1L-Passlock or BCM by compusmith Aug 10, 2009 (5:04 pm)
Hello, I have a 1997 Pontiac Grand Am SE 3.1L AT. For quite awhile now I have been having intermittent passlock probs that just wont go away. I have noticed that in the summer months (100+) it sometimes won't start. It cranks and starts for about a sercond or two then quits. Yep, just like about 99% of these posts. My "Theft System" light stays illuminated when in the ON position. When it does start for that 1-2 secs the Theft System light goes off. Anyway, one thing different on my diagnostic that I have yet to hear (I have not read all 600+ posts) is that when it does start, sometime my Tach and Speedo gauges go whacko until I shut it off and restart it. Then they perform like normal. One mechanic told me that was an indication of a defective BCM. Problem, I cannot find my BCM anywhere. Does anyone know where the BCM on a 1997 Grand Am is located? or if it even exists? One mechanic told me it doesn't have a BCM. I found the PCM but, not the BCM. I have not tried the toggle switch or electrode thing yet. What I did do was remove the plastic connector for the 3 passlock wires and hard wired them (well, currently with just some wire nuts but, they'll meet with solder soon) with the yellow, black and white wires they were originally connected to. At the time I was troubleshooting corrosion of those tin connectors and my high humidity area. I am just not 100% sure if it's the Passlock or the BCM at this point. As soon as I turn the key to ON, the Theft System light flashed for about 5 times then goes solid. The tach and speedo gauges are all that is telling me it's the BCM. I live in a high heat (100+) and high humidity (73%) area in Southern CA. Thanks for any help! -Tim Replies to this message: lovemygrandam (Aug 10, 2009 6:27 pm)
#676 of 737 Re: 1997 Pontiac Grand Am SE3.1L-Passlock or BCM [compusmith] by lovemygrandam Aug 10, 2009 (6:27 pm)
Replying to: compusmith (Aug 10, 2009 5:04 pm) Tim, You really need a service manual for your vehicle. It will enable you to locate your BCM, if you have one, and will show the wiring for your particular vehicle. Go to message #599 and click on the link at the bottom of the message.
#677 of 737 BCM 1997 Grand Am 3.1L, AT by compusmith Aug 10, 2009 (7:27 pm)
Does anyone know where the BCM is located on this car? I'm troubleshooting and my Chilton's doesn't even mention it anywhere.   Thanks -Tim
#678 of 737 try here by malbols Aug 11, 2009 (8:28 am)
not sure if you can use this . .http://www.bulldogsecurity.com/ I did find out you have a PASSLOCK 1 system though .
#679 of 737 passlock probs w/Saturn by mcleff Aug 15, 2009 (9:55 am)
All of those grand am owners are having same problems we've had with our 2003 Saturn L200. Generally this happens when my husband tries to start the car, but it has happened to me also. Usually it means a 15-20 minute wait before it will start, but yesterday it was an hour and a half. In fact, I was calling for a tow when I tried one more time and it started. Does anyone know of a way to disable this damn thing? Thanks. mcleff Replies to this message: lovemygrandam (Aug 16, 2009 2:17 pm)
#680 of 737 Re: passlock probs w/Saturn [mcleff] by lovemygrandam Aug 16, 2009 (2:17 pm)
Replying to: mcleff (Aug 15, 2009 9:55 am) This is the first I've heard of this problem existing on Saturns, but I'm not surprised. Before going any further, you might try reading all the posts mentioned in post #599. That may give you a clue of how to bypass the problem, but the best thing I can advise is to get hold of a service manual for your particular vehicle, and follow the wiring of the security system. Then post any wiring diagrams that show the hall effect switches in the ignition system on this forum. We will then try to figure a way to bypass your particular vehicle. It would also be helpful if you post the pages from your owner's manual regarding the security system.   Many of us here have successfully bypassed or disabled the security system on our Grand Ams and Aleros. I'm sure a similar fix could be used on Saturns of models which are similar, and around the same vintage.   Dick B.
#681 of 737 Re: Customer Service - what a joke [virgo58] by djohn139 Aug 22, 2009 (11:40 am)
Replying to: virgo58 (Jul 03, 2007 6:36 pm) I agree with you! Customer Service was a big joke. I am so excited to write I finally traded in my piece of junk 99 Grand Am. I had so many problems with it in the past 3 years. I would never go anywhere in it because I never knew when it would not start. I had the passlock disconnected but still had problems with it starting! I had to have it towed to trade it in because it would not start. Oh well-Good luck to everyone and thank God I no longer own a Pontiac!
#682 of 737 Re: what a pita [markjr54] by 99crapowner Sep 07, 2009 (10:44 am)
Replying to: markjr54 (Jul 16, 2009 10:55 am) hey I was having the same problem so I did what you said and the fp finally got some voltage now my question is should I hook the fp relay back up or not
#683 of 737 Keyless Remote Entry Replacement - 01 Grand Am GT by lhelfer Sep 09, 2009 (9:20 am)
I bought an 01 Grand AM GT & the owner had lost the keyless remote to the vehicle. I have attempted to order a replacement online at a couple of places, giving my VIN #, and have been told that it appears I may require an older type remote that came on early models of 2001 grand am and they refer me to GM dealer. Does anyone have any recommendations? Replies to this message: lovemygrandam (Sep 10, 2009 4:00 am)
#684 of 737 Re: Keyless Remote Entry Replacement - 01 Grand Am GT [lhelfer] by lovemygrandam Sep 10, 2009 (4:00 am)
Replying to: lhelfer (Sep 09, 2009 9:20 am) My advise... Get a shop manual for your vehicle. This will have the part number of the Remote that you will need for your vehicle. Then go to a junk yard and buy a couple of GM remotes of that model. Replace the batteries, and then take them with you to a Chevrolet Dealer. They will charge you $25.00 to program your vehicle to accept the remotes. (The Pontiac dealer will charge you $40 for the same service.)

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