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Pontiac Grand Am Security Passlock Problems

1227 messages,  Last post on May 24, 2013 at 10:37 AM

You are in the Pontiac Grand Am Forum.

What is this discussion about? Pontiac Grand Am, Security System, Sedan

    
Go to NHTSA to file a safety complaint.
Or call Monday-Friday (8 am to 8 pm ET) (888) 327-4236 TTY: (800)424-9153
 
    For those experiencing the security passlock problem, please see long-time member lovemygrandam's GM Security Passlock Fix tutorial.

Messages Page 115 of 124

#1133 of 1227 Re: Security light on solid [dcheitel] by lovemygrandam

Mar 27, 2012 (11:10 am)

Replying to: dcheitel (Mar 24, 2012 9:04 pm)
Yours is one of the situations where you will need the Scan tool and the Techline Terminal to put your vehicle into the learn mode. If your vehicle starts after the first 10 minute learn cycle, but the Security light is still on solid, there is a possibility that the PCM already knows the code word sent by the BCM.
 
This is pure speculation, but someone told me that you can trick the system by going to the Under Hood Fuse Box and pulling Fuse #18 (fuel pump). I would imagine you must put it back in once you have started the third learn cycle. I haven't had the opportunity to try this, since each time I did the resistor fix, the lamp extinguished and the vehicle ran after the 10 minute relearn. (about 12 vehicles so far)
RB

#1134 of 1227 Re: passlock problems [curlylocks1014] by omarbrooks

Apr 15, 2012 (10:39 am)

Replying to: curlylocks1014 (Apr 10, 2006 3:47 pm)
the reason why you might be having that problem is because your key don't have a chip on it so the system sometimes bypass the chip and start but you do need that chip so you won't have that problem no more

#1135 of 1227 Re: passlock problems [omarbrooks] by lovemygrandam

Apr 16, 2012 (11:25 am)

Replying to: omarbrooks (Apr 15, 2012 10:39 am)
Passlock II does not use a smart key. This is stated in your owner's manual.

#1136 of 1227 HELP by travjenkins

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.
 
Travis

#1137 of 1227 Re: HELP [travjenkins] by lovemygrandam

Apr 18, 2012 (3:36 pm)

Replying to: travjenkins (Apr 17, 2012 9:49 am)
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:
http://www.bergerweb.net/graphics/BCM-Schematics3.gif
 
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.)
 
Dick B.
Engineering Staff (retired)
GM Proving Grounds
Milford, Mi.

#1138 of 1227 Re: Disable your Passlock! [pontiac4] by lardy

May 16, 2012 (5:48 pm)

Replying to: pontiac4 (Jun 20, 2007 5:00 pm)
i used the idiot proof remedy at this link:
 
http://www.bergerweb.net/PasslockFix/index.shtml
 
so far no problems.
 
i'll update if something comes up

#1139 of 1227 Security light cut engine while running by luitachris

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 1227 Re: Security light cut engine while running [luitachris] by gmcustsvcsarah

Jun 25, 2012 (3:05 pm)

Replying to: luitachris (Jun 25, 2012 11:20 am)
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.
 
Regards,
Sarah
GM Customer Service

#1141 of 1227 Re: Security light cut engine while running [gmcustsvcsarah] by luitachris

Jun 25, 2012 (4:34 pm)

Replying to: gmcustsvcsarah (Jun 25, 2012 3:05 pm)
It is a 2000 Pontiac Grand Am SE

#1142 of 1227 starting by ataylor11

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.

Messages Page 115 of 124

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