Last post on May 13, 2013 at 1:41 PM
You are in the Pontiac Grand Am
What is this discussion about?
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.
#1135 of 1226 Re: passlock problems [omarbrooks]
Apr 16, 2012 (11:25 am)
Passlock II does not use a smart key. This is stated in your owner's manual.
Apr 17, 2012 (9:49 am)
Yesterday I went to start my 2001 Grand AM GT and for starters the key fob would not open the doors. When trying to start the car it would crank over and start for aprox 2 seconds then shut off. The security light is on the whole time (not blinking). I tried letting the key set in the ACC position as well as the ON position- both for 15 min and neither worked. What else can i do? Any help would be appreciated.
Apr 18, 2012 (3:36 pm)
You have two problems. The first is probably a dead battery in your Remote Keyless Entry Transmitter, but it could be a vehicle wiring problem. To help you trouble shoot that one, you can find a wiring diagram of the Door Lock circuits here:
The keyless entry system has the following main components:
* The transmitters
* The Body Control Module (BCM)
* The Remote Control Door Lock Receiver (RCDLR) . When you press a button on the transmitter, the transmitter sends a signal to the RCDLR. The RCDLR receives the signal and sends a class II serial data message requesting the appropriate function from the BCM. The BCM then sends the appropriate signal to the Door Lock Circuits in the doors.
You may find that you just have a loose connector on the BCM,
The Security Light On solid indicates a fault in your Passlock system... either a short or an open circuit. You will have to determine that by measuring the voltage between pins A6 and B6 of the center connector of your BCM with the ignition switch in the run position. If it is near zero volts, you have a short. If it is near 12 volts, you have an open circuit. It should read between 3 and 8 volts if the circuit is intact.
You will have to read the voltage by piercing the wires coming from those pins with two thin needles, and be careful not to touch the needles together. The ignition must be on, and the connector plugged into the BCM to make the reading.
It's unfortunate, but mechanics at the dealerships don't know how to do these things. If they can't fix it by changing parts, they give up. This holds true for all auto companies, not just GM. (Don't blame the dealers.... every time a good service tech comes along, the factory steals them from the dealer.)
Engineering Staff (retired)
GM Proving Grounds
#1139 of 1226 Security light cut engine while running
Jun 25, 2012 (11:20 am)
I have spent an hour going through everything and I am still kind of confused. I have had the whole problem with the security light blinking and have to wait 10 minutes to start it. Today was a first though and kind of scary. I was driving and as i approached the light i accelerated a little and noticed the security light come on blinking with the oil and battery light and my engine was cut off. The radio and lights worked but I have never had this happen while driving. After 10 minutes I was able to restart it and the security light was off. After about 5 minutes it happened again but I was able to start it right back up
#1140 of 1226 Re: Security light cut engine while running [luitachris]
Jun 25, 2012 (3:05 pm)
Good evening luitachris,
What model year is your Grand Am? I would like to check my resources to see if I can provide any information.
GM Customer Service
#1141 of 1226 Re: Security light cut engine while running [gmcustsvcsarah]
Jun 25, 2012 (4:34 pm)
It is a 2000 Pontiac Grand Am SE
Jul 10, 2012 (11:06 am)
2004 pontiac grand am. security light came on yesterday. drove just fine. was able to drive it this morning. then went back to it 4 hours later wouldnt start. checked all the fuses. check the battery. it was putting out 12.2 volts. Radio will come but then i go to crank it and it doesnt do anything.
#1143 of 1226 2002 grand am timing cahin
Jul 10, 2012 (1:25 pm)
I own a 2002 grand am se w/2.2 L
ecotec engine-- It has a timing chain, not a belt. After a lot of research on the matter, and a rebuilt engine, this is what I have learned.--There is a manufacturing defect, in that the chain is too tight and does not get enough oil. Mine broke with only 59,000 miles, and an oil change less than than 2,000 miles old. I am a careful driver, I don't race, or make jack rabbit starts. The best thing for any Grand Am owner to do is have your timing chain replaced before it breaks, and takes your engine down with it. Also, on the new timing chain, the nozzle for the oil is larger. Why hasn't there ever been a recall on this? This problem is too well known for the manufacturer not to be aware of it.
#1144 of 1226 2002 Grand Am security system
Jul 10, 2012 (1:40 pm)
It's me again with another tidbit for you Grand Am owners--the security system is also faulty, as well as the timing chain(on another post of mine). After many hours of research, I learned that the security system is also faulty. When my timing chain blew, and I had my engine rebuilt, I found directions on the internet on how to by-pass the security system. I had my mechanic do this, and lo and behold, my security light still stays on! Many times I have had to sit in a parking lot and wait 15-20 minutes to reset my security system before my vehicle would crank. Not to mention the several times I had my car towed to the GM dealership due ti it not starting, and they would call and say I owed hundreds of dollars, but they just didn't know why it didn't start before, but now it does. I even bought a new battery thinking that was the problem. Research "faulty security system" for your Grand Am, and see what you get. That's what I did.