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Comments
One of two things has happened.
1. There is something wrong with your BCM, in which case, the mod will not work, because the BCM is not re-calibrating itself to the new resistance.
2. Your resistor is not properly connected between pin A6 and B6 of the center connector of the BCM. Remove the connector from the BCM, and measure between pin A6 and B6 of the connector with an Ohmmeter. It should read approximately 2.2K. If not, check to see if your resistor is broken, or has a bad connection on one end.
The key element here is this. If the BCM cannot read the 2.2k resistor, then either the resistor isn't connected to the correct two wires, or the BCM is defective. But when the "Security" light is on solid, that is an indication that something is wrong with the ignition switch security system.
There is a third possibility. The circuitry of the 2003 may not be exactly the same as my 2002. The only way to know this is to Get a service manual for your vehicle.. The price for a one year subscription through Alldatadiy is less than $30.00, which is a bargain, compared to the GM service manual, which is around $140.00.
I learned about AlldataDIY from my local mechanic, who uses them exclusively for every vehicle. Of course, his subscription covers all vehicles, and costs a mint, but still far less than buying paper manuals from the dealers.
Three options I have read. Cylinder Lock replacement that has the PassLock portion on it, Ignition Switch, and/or the solenoid in the shifter (make note, when I press in the automatic shifter button I can feel and hear it clicking in the ignition switch).
So quick notes:
1) Key won't turn from Off position.
2) Steering Column won't lock
3) Can feel a click in the ignition switch when pressing the shifter button.
Attempted things:
This car has the ignition switch on the dash and not the steering so I have not been able to locate any sort of unlocking button as mentioned on other cars. I took out the radio and the harness looks good (no loose wires). I have read about hitting the key with a hammer which I haven't tried, I also haven't tried looking for the fuse in the engine compartment, or unplugging the battery. Before I go an buy any items I wanted to see what you all suggest since I can't return them.
1. The key cannot be turned to the off position and removed unless the shift lever is in REVERSE. Sometimes I have to push the shift lever very firmly into reverse before I can turn the key far enough to get it out of the ignition switch. Your PARK position is obviously linked into your ignition switch the same as my REVERSE position.
2. I don't think the steering column is supposed to lock on a Grand Am. I have never had one that did, but of course, I only buy simple stick-shift vehicles, since I don't know how to repair Automatics, and they get horrible mileage.
If I were you, I would check in the service manual to see what kind of mechanical linkage there is between the shift lever and the ignition switch, and also see if there is some kind of linkage between the steering column and the ignition switch. That is probably where your problem lies.
The biggest hurdle was that a tumbler broke in the cylinder lock so turning the key too the ON position to accomplish all the tasks in troubleshooting and removing didn't exist. The key was forced out and in turn broke a tumbler, so all that could be done is a key inserted but not turned. So getting the lock cylinder, the Passcode three wire switch out (Can only come out by removing the lock cylinder from the ignition switch for anti-theft reasons), and the biggest problem encountered was learning/figuring out how to get the park/lock cable (sometimes known as the shift interlocking cable) out of the ignition switch if you want to replace the switch.
So let me explain the park/lock cable because this was the largest learning curve. Now make note, there was nothing wrong with the switch and decided to still use it anyways but more on that later. Since you can't turn the key to the on position, you can't move the shift lever (auto) out of park. I pulled and pulled on that cable that goes into the back of switch till I was black and blue while it was in park. To figure out why I couldn't do it I ended up popping all the clips up and over the barbs that lock in the white and black sections together. Turns out that with the key only able to stay in the off position the ignition switch has an arm that is holding down the park/lock cable. Once I took the two halves apart I could easily get the cable out. Make note, if you do plan to reuse your switch and for some reason you need to do this, in hindsight you don't need to but does make working on it easier, be careful with the white portion of the switch, the arm inside has spring loaded sensors under it that can be exposed and they fall out easy (they won't shoot out though).
Now to get the lock cylinder out. This is explained all over the web by drilling the switch but it was confusing as to what they meant and why. It took me holding a new cylinder to figure it out. To make my extraction of the thick metal pin from the lock, I got a dremel wheel and shaved away the portion of the sides (look at photo below) so I could grab the pin with needle nose to yank out once I drilled the switch to break/bend the spring (This is what is confusing, the spring is really a flat wide piece of metal that acts as a spring and by bending it you can forcefully pull out the pin).
The rest was cake, put in the new cylinder, and run through the passcode relearn process. I even put the switch back together and reused it. Cost $159 for the lock cylinder with the new passcode sensor, door lock sensor, and keys. All from Autozone, yes you can find cheaper but was in a jam and cheaper then $650 from the stealership.
http://tinypic.com/r/10zmooo/5
On another note, Did you buy a shop manual for your vehicle? If so, would you mind sharing with us all, the pages that show the wiring for the PASSLOCK circuits?
When i try to start with the key alone, it starts for 1 second then sputters and stalls. But it will start and stay going for the two minute warm up by the remote start. I dont know if the security light was on in the past, but now it doesn't appear to stay on.
I am willing to cut the yellow wire if this will fix the problem. My wife tried leaving the key on and it did start, one time . The next time it did not work
Any suggestions or help would be appreciated. Thanks.
Good luck.
To everyone else..... I can't believe that out of over 800 posters, nobody has offered to share the Passlock Wiring from their manual with us all. What's up? Are you all too cheap to buy a $27.00 Manual?
Please take a look at your key and post back to us whether your key has some sort of electrical contacts on the sides. Better yet, take a good photograph of both sides of your key and post it in this forum. It will help us to understand why 3 in 1 oil has an effect on the electrical system of the vehicle.
Dick Berger
Thanks
* Replace the spark plugs
* Replace fuel filter
* Check for good compression
If none of those make it better, try posting in another forum dedicated to hard starts. It sounds like what you need is a good tune -up.
Dickey-B
car would not have spark, changed coilpacks, ignition switch, some part behind the ignition behind it (rheostat?) a vo tech kid in the family got underneath at one point and found when he shook the wires leading back to the fuel tank, the car started up. mechanic cleaned the connectors back there, cleaned spark plugs, etc, at one point even had a wire running from the coilpacks i think to an alligator clip by the battery which worked for awhile, but didn't at the last problem. fyi, we never had the passlock problem with the security light, but were trying to find why no spark. last thing we did was mechanic tried to check alot of the wiring and then found a corroded wire or something to the mass air flow sensor. changed the wire and sensor. now the car is starting everytime. just to recap our original problem, the car would stall on its own while driving, and not restart. sometimes the car wouldnt start right at normal times, just sitting overnight or running into a store.. after changing some parts, it stopping doing that but still wouldn't start at some times. so again, car has started everytime for the last 3 weeks. hope thats the end of it. with luck, we'll get the car detailed and get a decent price for it on ebay or craigslist.
good luck all.
Disconnect the battery cables from the battery. Clean the terminals on both the cables and the battery, and then re-connect them. If that doesn't help, then disconnect the cables at the other ends, clean, and re-connect.
A poor connection often causes this problem. It takes only a couple of amps to run the radio, but over 100 amps to crank the engine, so poor connections are a common cause of the engine not turning over.
On the other hand, if you have a key that does have a "+" stamped on the side of it, it will allow you to turn the key, but will not start the vehicle unless the electronic pellet within the key matches the code stored in the vehicle. I have this system in my 2007 Cobalt.
The oil life calculations are handled by the Powertrain Control Module, not the BCM.
These are items that are covered in the Service Manual. GM doesn't keep these things secret. They publish very comprehensive manuals describing the various systems on their cars. Trouble is, it's hard to find a mechanic who has the knowledge to deserve the $75/hour they charge at the dealership.
Dick B
On the other hand, if you have a key that does have a "+" stamped on the side of it, it will allow you to turn the key, but will not start the vehicle unless the electronic pellet within the key matches the code stored in the vehicle. I have this system in my 2007 Cobalt.
The oil life calculations are handled by the Powertrain Control Module, not the BCM.
These are items that are covered in the Service Manual. GM doesn't keep these things secret. They publish very comprehensive manuals describing the various systems on their cars. Trouble is, it's hard to find a mechanic who has the knowledge to deserve the $75/hour they charge at the dealership.
Dick B
Thanks!
Left the house, drove about 25 miles and stopped for gas. Got back in the car, all power, lights, radio everything was on but car wouldn't turn over. Tried to jump start, nothing. Pushed the car to a parking spot and went to a computer to start searching. Read about the 10 minute reset, went back to the car and it started after trying this method.
What does the plus have to do with the key? I'm not sure if I need to take it in or not. The temperature here in Minnesota yesterday was in the high 80's but the dewpoint was in the upper 70's. About as steamy as I've ever seen it here, and I did have the AC running. I read something about moisture but not sure what else to do. I saw some posts from a while back and if anyone could shed some light it would be great.
As of now it is starting, but I am nervous about it happening again.
Thanks!
Was the "SECURITY" light flashing when you had filled up the car and were trying to start it?
Was the "SECURITY" light flashing when you came back to the car? If not, was it on steady?
Does your key have a "+" stamped on the side of it? This indicates that your key has a resistor or a transponder embedded in it, and the key could be your problem.
My suggestion would be to go to my website,
http://bergerweb.net/grandamsecurityfix.htm
Read the entire article, print it out, and take it, with your car, to a dealer and ask if they can fix your problem. Any good dealer should be able to tell you what security system you have in your car, and if it is not the same as the 2002 model, they should be able to diagnose what went wrong with your vehicle. I have a feeling that what happened, in your case is not a security issue, but possibly a fouled fuel filter or vapor lock problem.
The engine would not spin when the key was turned. Nothing at all, but after the 10 minute reset period it did start. I know we are due to replace the fuel filter, so I might just do that anyway.
Thanks for the responses, hopefully I gave enough info this time.
Don't know why the key won't turn now.
I have an 05 Pontiac Grandam.. One day I left work it would not start.. Would turn over just would not start.. Googled some things online & got this forum.. Read about the passlock issues & how to turn key on ACC position fo 10 mins. & it would start right up & it did!... Also my security light has NEVER came on!.. It only flashes when I turn the key to acc then goes off after 10 mins. My ? is it has now happened 1 x a week for the past month like clockwork (EVERY TUESDAY).. My mechanic said it would cost at least $800.00... Anyway of a cheaper fix or I'm trading it in!
Also it has 80,000 miles now.