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Old 05-27-2010, 05:25 AM   #1
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Need some MAJORR help

I have a 2004 Saab 93. The other day i went to start the car and it wouldnt start. I figured it was a dead battery and went ahead and jumped it and the car started right up. I got to work, turned the car off and it wouldn't even try to start back up. After thinking i needed a new battery my infotainment system said immobilizer failure. Soooo i figured it was the security system but NOW when i put the key in the system says ECU not programmed. Sounds like another EXPENSIVE fix to me. So i'm trying to find the cheapest way out of this mess because i can't put money into fixing my car right now. would it work if i took the ECU out of a junked saab and put it in my car? or can i get a performance chip from Nortic or BSR and will that re-program it? any help would be awesome i love my saab and would hate to have to lose it because repairs are out of this world.
Any help would be awesome. Thanks, Austin
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Old 05-27-2010, 07:37 AM   #2
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would it work if i took the ECU out of a junked saab and put it in my car? YES BUT YOU WILL NEED A TECH 2 WITH CANDI AND LINK TO SAAB SYS NETWORK...
or can i get a performance chip from Nortic or BSR and will that re-program it? IDK

try going step by step replace the battery check the fuses-- check for codes- etc...
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Old 05-27-2010, 09:06 AM   #3
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Can you get the car started again?

If yes, disconnect the battery. If the car stays running it is probably just the battery.

If the car dies while the battery is disconnected it is probably the alternator.
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Old 05-27-2010, 09:14 AM   #4
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thanks a lot guys. i'll try the fuse idea. any more suggestions anyone? anybody know if the BSR or Nortic idea will work?

Thanks again
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Old 05-27-2010, 10:18 AM   #5
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thanks a lot guys. i'll try the fuse idea. any more suggestions anyone? anybody know if the BSR or Nortic idea will work?

Thanks again
You should find tha actual cause of the problem first. I doubt going with a nordic or BSR tune will solve the cause of this issue.
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Old 05-27-2010, 10:59 AM   #6
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DO NOT, I repeat, DO NOT unhook the battery with the engine running EVER, it will seriously mess with the electronics in the car, and may damage the alternator.

This goes for nearly any car - the alternator charging circuit expects a certain resistance through the battery, and it may overload if you remove it from the system.

You may be interested in this thread:

http://www.saabnet.com/tsn/bb/9-3/index.html?bID=141271

Best,
Drew
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Old 05-27-2010, 11:01 AM   #7
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Even if you had a Tech2 and CanDI box to program the ECU, you would also need access to the factory programming network to give the Tech2 security permission to program to the car, something only a dealer service department or well equipped independent will have.

The problem is probably not the ECU anyway though, they throw their own codes, not immobilizer codes - the one bad ECU in a T8 car I have seen just shut down the engine randomly, lit a check engine light for 'module internal fault' but didn't throw any immobilizer problems, it started fine.

I hate to break it to you, but you will likely be throwing money away trying to guess diagnosing this yourself without getting the body codes read, which can only be done with the Tech2.

The one thing that can cause that error that you could do yourself that doesn't need any programming is changing the ignition switch module itself in the center console - I think they are around $100 and not too difficult to change.

But.....

If you're getting immobilizer error usually that points to a problem with the CIM or the ignition switch itself (ISM - it reads the info in the key).

Low battery voltage or voltage disconnect while the car sits can also give erroneous immobilizer, stability control, and transmission failure warnings on the SID, if you suspect a dead battery try putting in a good one and see if it goes away.

Best,
Drew
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Last edited by DrewP; 05-27-2010 at 11:10 AM.
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Old 05-27-2010, 11:07 AM   #8
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Don't forget the SCL is in there too! Sterring Collumn Lock Module.... it's tied in with the CIM (Collumn Integrated Module) and the ISM (Ignition System Module) and if one goes down they all do.... None are HARD to replace - just expensive and requires a TECH 2. You need to get a TECH 2 and pull codes - best way to DIAG this problem - do NOT throw parts at it. Sometimes you can get lucky and clear the codes and reprogram and update software in components to correct little glitches - other times this process actually will KILL a weak module.... Sport Sedan's suck b/c they are not the most user friendly car to DIAG and Repair sometimes unless you have a TECH 2...... I love my 9000 and V4
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Old 05-27-2010, 02:22 PM   #9
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Fast, easy, do it yourself option that has worked for me before; disconnect battery, walk away for 20 min. or so. During the 20, check/charge battery if it's suspect. Return to car, reinstall battery connections (maybe clean them if necessary), see what happens.

p.s. if this is the original battery, definitely just change it
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Old 05-27-2010, 02:37 PM   #10
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With a "Charged" battery. Key in or on if Possible, Unplug the CIM, The Connector on the right side of the steering column behind the Boot. Then try to cycle Key to start and or Flash the lights with the remote, Plug it back in, then unplug the battery to for a min, This has brought a Few Locked up CIMS back to life After locking up and Throwing Theft warning protection failure on the SID, for me over the years. "Column Integration Module"
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Old 05-27-2010, 04:42 PM   #11
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Harvey,

I can't wait to try that, you are a wizard if that actually works. Any idea as to why?

Just cycling the power to the module to try to wake it back up?

Best,
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Old 05-30-2010, 01:20 AM   #12
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04saab93, what happened next? Did you get the car going again?

Sure would be nice if peoples with problems can post the outcomes too...
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Old 05-30-2010, 07:54 AM   #13
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Thank you SO MUCH everybody. I haven't gotten the car up and running yet i've been extremely busy but tonight when i get home from work i'm going to attempt all the suggestions (cept the one about running it with the battery unplugged. it wont start in the first place) and if i cant figure it out i may just have to rent another tow dolly and drag her up to the saab dealership, which scares me. I'll let everyone know how it goes.
Thanks again, Austin
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Old 05-30-2010, 07:55 AM   #14
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by the way.. where is the CIM located?
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Old 05-30-2010, 12:12 PM   #15
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Read this, from LostSaabKeys.com:

http://www.lostsaabkeys.com/cim_removal.html

Best,
Drew
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Old 05-30-2010, 02:29 PM   #16
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The CIM is the Steering column housing. The part with the Turn & light stallks. The boot at the Base un snaps from it.
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Old 06-16-2010, 09:48 AM   #17
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OK. finally figured it out. Terrible news. Apparently the main BUS that connects all the computers is fried so i have to replace that, reprogram all the computers, and apparently my starter and the wires going to it are totally fried and need replaced too. But i dont know thats what the Saab dealership said but i feel like I'm takin it pretty hard. They might as well have told me there are unicorns poking holes in my exhaust too but eventually its coming down to $1400 for everything. Ouch.
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Old 06-16-2010, 09:49 AM   #18
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Thanks for all your help though.
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