Traction control fault message?

[Steve McF]

If it was, I'm hoping he may have fixed it during checking everything,  cleaning it all, and reconnecting everything!!

The fault has not reappeared since I left central Birmingham yesterday, and I took the car to work and back today, and did a bit of a run out on country and town roads this evening.

[Steve McF]

Well that's that then!!!

Been using the car for work and took it for a country drive last night. Then today, went to work again, and this afternoon drove to Cardiff. Car ran like a dream......and then as I got to the M50/M4 junction whilst doing about 60mph.....bing bong Traction Control System Fault.....and when I pressed clear, it changed to Stability Control System Fault!!!

Knew it had to be too good to be true 

Still en route back now, and it has done it once more again!!!

[Steve McF]

Back home now, and despite fault light being on, car performed ok. But there were a couple of instances where the car dropped out of cruise control without warning - not sure why, or if it is connected?

[carrera]

Dropping out of cruise control is linked to movement of the pedals

I would check the connections, switches & mountings for the brake & clutch pedals

If you are feeling brave simply disconnect them electrically & road test, but note, you will have to switch off the cruise manually then (assuming the 9-3 is similar to the 9-5)

[Steve McF]

Apparently the car threw the traction control fault for our mechanic as he took the car to and from his garage for the MOT, but as always, no faults retained!!!

So it got me thinking - whilst code readers can't read the Saab suspension/non-engine fault codes, I was wondering if Op-Com might be able to?

I have an Op-Com from our days of having a Zafira, and if I can get the car to do the fault , I need to plug up to the car with something that can read it before I turn the ignition off.

[sgould]

I don't know about Op-Com, but I'm having success with the eSID I bought last summer in Trollhättan.  It reads all the Saab codes

[Audax]

eSID is excellent, I wish I hadn't held off so long before getting one.

[sgould]

Indeed.  I wish Ihad got one a lot earlier.  It's not just the direct reading, but indirect too,  I showed SWMBO how to access the codes and when an engine light came on when she was 80 miles away, she could tell me what it was and I could tell here it was OK to drive home!!    That one incident probably paid for it!!

[Steve McF]

Limited success with Op-Com, but it didn't recognise the type of car even though it did get the VIN number. Anything to do with the engine/transmission/chassis doesn't seem to work. But other stuff does, like the body control module, climate control system etc. But when it came to the ABS / traction control system, nothing doing!!!!!

[Steve McF]

Well I had written off the Op-com in being able to help diagnose the traction control/stability control fault. The car had been behaving itself and hadn't thrown the fault for a little while.....until today!! On my way home, doing 50mph on an A road and "bing bong", momentary stutter, and then he carried on driving OK, but with the warning showing!!! This time, I didn't press clear - I left it - determined to get home and try and plug something into the car before I turned the engine off to see if I could capture anything at all in the way of DTCs.

So I parked up with engine running, ran into the house to grab my ancient laptop and Op-com, and back out to plug it all into the car!!!! With the traction control system fault message still on the SiD, and the TCS warning light on the cluster, I plugged the Op-com in. I didn't hold out much hope because last time, it seemed incapable of talking to some systems on the car, including the ABS/TCS etc.

So I scanned through the BCM etc checking to see if the other faults it previously found were still there (LHS rear door switch, and a front fog light open circuit, and sure enough, they were). Then I thought I would just try the Chassis items again, and the first thing on the menu is the ABS/TCS - and to my surprise, it connected, and threw up this DTC:

U2105-00 CAN-Bus No Communication with ECM (Engine Control Module)

In various other modules I got these codes too, which may, or may not be connected:

B3057-48 <Unknown DTC>
B1023-09 <Unknown DTC>
B1023-57 <Unknown DTC>
U2155-71 <Unknown DTC>

I then turned the ignition off and on again to do another scan to see if the codes had disappeared, and the TCS fault came up on the SiD, and the car didn't start, but there was a loud buzzing from either the back of the steering wheel, or within the instrument cluster itself (if I can upload the video I took, I'll try and put it on here asap). I got this a couple of times, until I switched it all off locked the car, then unlocked and tried again, and the car started normally.

So am I any further forward? Is it all a disaster, or could it be something simple?

I have emailed all this info back to Fraser at Bagnals, who could not get the car to misbehave when he had it, so will see if any of that means anything to them. But I was impressed that the Op-com did actually find something......so it wasn't useless after all, and I didn't even have to go out and buy a new one!!!!! I had it in my toolbox gathering dust for the last few years!!!! And the ancient laptop I was going to get rid of, now has a new purpose again!!!!

[Audax]

From distant memories of those codes it's possibly/probably a bus problem, there's a chance with this that it's a CIM or MIUl problem or a bad earth or a couple of different problems. First off the actual fault code logged suggests a CAN bus problem between the ABS module and the engine ECU, possibly wiring or a bad earth but I think that connection runs into either the CIM on the MIU (main instrument unit, the speedo cluster) and that a faulty module there can cause weird issues like this, unfortunately it's 13 years or more since I last looked at anything like this and I've forgotten a lot of what I used to know.

[aerojon]

B3057-48 <Unknown DTC> SCL not added
B1023-09 <Unknown DTC>
B1023-57 <Unknown DTC>
U2155-71 <Unknown DTC>
The B1023 sub codes don't exist,same goes for the U2155 sub code..

the only B1023 code= SID button is stuck,the only U2155 is U2155 1F O-bus. Intermittent Open Circuit before Control Module..

[Audax]

B1023 57 has a code: https://saabwisonline.com/9-3-9440/2003/dtcs/icm3/b1023-57

[aerojon]

it's not showing in 04-06 codes 06 isn't even showing ICM1,2 or 3 just ICM...Plus no mention of what MY the car is in the thread..

[Audax]

It's not uncommon for the fault codes to not be in the correct years for wis, sometimes you need to look in the wrong year's to find them.