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Discussion Starter · #1 · (Edited)
Fuel Sender replaced. No joy.. Is it the CIM?!

So I had the power loss under throttle and stuttering and no start issue. I changed the fuel sender. This seemed to fix it for a week or two.

Now the car is not starting again until I reset the battery (remove + terminal) it then works for a while before stopping again.

Also every so often I will get an ABS malfunction error, ESP loss and rain sensor malfunction. Although this is very rare.

When I run the codes I only get U0212 - Lost Communication With Steering Column Control Module and rain sensor issues.

Could this all be related to the CIM? Could I just need to reset the computer with a TechII after the fuel sender switch out?

Any help is appreciated.
 

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Discussion Starter · #3 ·
Thanks. Looks like I'll be wiggling wires tonight and buying a CIM and tech2 soon maybe.

Blighty
 

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Discussion Starter · #4 ·
Still searching

Update:

Removed ECU to look for bad connections
Moved starter and alternator from battery main switch post to positive terminal post
Checked underneath battery tray for bad connections
Cleaned battery terminals
Added new battery

Still getting code U0212 Lost communication with steering column module

Also get an ESP failure and ABS failure from time to time with no other codes!

I'm thinking maybe the CIM is not paired properly?

Next steps are to scan with Tech II and maybe send CIM to BBA Reman for a repair.

Also ignition switch could be checked.

I'm just confused that I only get U0212..

Any clues?

Thanks,

Blighty
 

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Discussion Starter · #5 ·
BBA-Reman are offering $600 for the CIM repair and both of my keys coding.

Is this the best option? Buying a new CIM is around $400 and a tech II $300 not inducing getting the keys redone.

Other options include buying a used CIM (no guarantee of how long it will work) with keys and ISM.

Any guidance is appreciated, thanks.
 

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FWIW, I was towed home on my way to Lake Erie a few days ago because ny self-adjusting clutch cable kept slipping, letting me make one or two shifts before I had to "adjust it" again. During the drive, the AAA tow truck driver told me about all the trouble he's been having with the newer Saabs. The problem is that when the CIM get's messed up, and the front wheels aren't straight, it is nearly impossible to winch the car up on the ramp without damaging it. He said that in this situation, the owner should request being towed by the front wheels rather that being winched up the ramp and being towed off the ground. The other alternative is to make sue the wheels are always straight when you turn off the car... Ron
 

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Discussion Starter · #7 ·
Man this forum is lame. There must be about three Saab enthusiasts holding this thing together by the skin of its teeth.

Fourtitude and VWVortex have way more interest in helping others. Wake up.
 

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Very sorry you feel that way, but I'll have to defend our forum for just a bit:

1. There aren't a lot of Saabs out there as compared to other brands (VAG).
2. This car is very complicated. More so than others.
3. A lot of issues involving the CIM or ECU require a shop with Tech2 and knowledge of these cars, of which there are few. Often people don't come back and let us know what fixed their problem. Often shops just throw parts so we really don't know what the issue was or how to fix it cheaper than parts throwing.
4. As Saab aged and died off many people with lots of knowledge left for other brands.
5. The older Swedish Saabs have nothing in common with our newer GM Saabs so they are of no help to us. Very few of even GMs parts cross over to Saab. Hell, vendors still think Cobalt coils work on our cars for crying out loud!

I'm sorry you are having issues. I'm sure if someone knew how to help you they definitely would. CIMs going out are common enough that I think it is your problem. Unfortunately, without Tech2 access I am internet quarterbacking.
 

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Discussion Starter · #9 ·
Thanks for the comment. I certainly feel like there are lots of positives here and agree with you on your thoughts.

I am trying to field a new (to me) car and getting all sorts of issues. I've owned a 2.0T Aero for 5 years with nearly nothing and bought this on the back of that experience.

I was looking for advise more really. Do I just buy a tech II and add a new cim and keys (expensive) or pay $600 to BBA Reman? Whichever way I choose I think i'm screwed!

Thanks,

Blighty
 

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Discussion Starter · #10 ·
Problem Solved?

Ok I have an update to the saga.

As a recap I was having starting issues, getting U0212 lost comms with CIM, sporadic ESP and ABS lights and general havoc in the system.

I nearly (probably still will) bought a tech II to test. Beforehand I thought it would be best to take the car to Import and Vintage in Mt Pleasant, SC, my local Saab specialist. The lead mechanic there did some tech II wizardry and came back with the following (sorry no codes):

AHL, ME9 (ECM) & TCM not on BUS.
All were added to bus

AND!
Missing AMP1,AMP2,CDF, EHU

All items were added to the bus and tested. Interestingly the TCM VIN was different from the car's VIN and it could not be changed.

So in conclusion, I think that maybe the TCM was changed by the PO and not added properly with a TechII. So far no starting issues, but, we'll see.

Crazy thing is with the ME9 and TCM not on the bus, how the hell did the car operate properly?

Still scratching my head on this one.

www.importandvintage.com
 

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I'd offer some advice, but I don't have any software for the 2.8 and ME9 ecu, but that's still weird how the ECU and TCM aren't on the bus, but the car was able to run...doesn't sound right, and sound like something is seriously messed up. without the ecu it shouldn't start, and without the tcm it would not shift right at all...

not familiar with the v6, but i would say check all the fuses and maxi fuses. I've had a newer jag do **** like that when a module is shot, ended up being water damage to the ECM, intermittent issues like that is a sign that there's a possible wiring problem or short to ground
 

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after thinking about that, since the chassis and interior are pretty much similar to the 4 cyl, is there an amp 1 under the driver seat in the v6 too? I know there is an issue with water damage to the amp, and it runs on a bus with the center speaker and head unit, and if there was a break in the connection, the car wouldn't start and there would be serious issues...easy check, just remove the seat and inspect it for rust or signs of damage

assuming you dont want to pay 1000 bucks for a new one, maybe find a fiber optic loop and loop the signal and bypass the amp, and see if the problem goes away, much cheaper option unless you try to find a cheap used one, which is more risky
 

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Discussion Starter · #13 ·
Will definately look into those comments, thanks. My mechanic did say though that everything had now been added to the system and was working correctly. I'm going to buy my own tech II soon. I will try and keep on top of it by doing it myself. So far the car is shifting better and has a better throttle response. I have stopped and started it 20 times so far with no issue. Fingers crossed.

Overall I think the issue may have been someone trying to work with an OBDii tool that was a generic one rather than tech II. Maybe they just did'nt, as we say in England, 'know their **** from their elbow'..
 

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Discussion Starter · #14 ·
Will check out the amp too although it was communicating fine yesterday.
 

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Discussion Starter · #15 ·
ESP light just came on! U0212 is back... FML
 

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U0212 shows a problem with the TCM...it doesnt show anywhere else. Maybe try "readding" it, but it could be bad? Why would it show a different VIN? It was changed for some reason. The TCM is under the bloody, hot turbo so maybe it melted? Read about "adaptation" in WIS. Ive got two of these V6s now...send it to me if all else fails. It just dosent sound like the CIM to me.
 

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Discussion Starter · #18 ·
So the old non starting issue is back. Next, I dont know what! There aro so many options to look into.

ISM clean up
Grounds
Wires under battery tray
AMP1 connection
Faulty wire on engine harness

And more,,

Local Indy wants me to take back in but I cant be sure he will be able to fix. My wife has a 2005 aero 2.0t , I feel like stealing bits off of that to check (TCM, AMP1).

Looking like a tech II soon!

Argh
 

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Discussion Starter · #19 ·
Got the Saab indy to check the car for free today. Came back with way more info. Its looking like a CIM job to me. Or from Santiago's post a change of the battery main switch.

Whatever, I think I should do both.

U0212 Lost comms with steering column ctrl module
U2139 CIM Missing on BUS
U2142 Yaw Rate Sensor Missing
U2143 Steering Angle Sensor
U2100 CIM missing on P bus

Options are:

$800 for Indy to replace with new and add existing keys.
$600 BBA reman CIM with one key

Or do it myself and get a Tech II out of it for the same cost.

$300 Tech II clone
$315 New CIM

Is this manageable as rookie Tech II user?
 

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Discussion Starter · #20 ·
To update this thread, I bought a tech 2 and am nearly ready to start playing with it once i buy a better serial to USB adapter. I sent my ABS module to BBA reman to get checked and it is fine. I am still having none start issues when the engine is warm and the same errors. My plan is to replace the CIM with a new one soon and also possibly the TCM as it was replaced and the VIN is different on it to my car. I think maybe that could cause a problem.

Anyway I will keep you posted.

Blighty
 
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