Sep 2, 2016, 02:11 PM
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TCM, "Limp Mode" Problems...Help!
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Audiworld Junior Member
Joined: Apr 2009
Posts: 19
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TCM, "Limp Mode" Problems...Help!
Alright it all started A few nights ago when I was replacing a fuse in my 98' A6 2.8L. Well, I apparently pulled the wrong fuse but didn't think much of it,I got the correct fuse replaced but, the next morning when I went to drive it to work, it had all the signs of being in limp mode. Did I create an arc and fry the tcm?
I was told that it could be that my TCM was bad and it needed to be replaced or that the connection was bad(I guess they often get water in the bottom of the foot well).
I've pulled the TCM to see if it was wet or if the connection was bad and it all checked out...Can I reset the TCM? And if so, how do I?
Thanks, Dan
I was told that it could be that my TCM was bad and it needed to be replaced or that the connection was bad(I guess they often get water in the bottom of the foot well).
I've pulled the TCM to see if it was wet or if the connection was bad and it all checked out...Can I reset the TCM? And if so, how do I?
Thanks, Dan
Thread Starter
Audiworld Junior Member
Joined: Apr 2009
Posts: 19
Likes: 0
Thanks, yep I checked inside the box, dry as a bone and clean as a whistle 
. I'll be getting the vag com(ross tech) in the mail tomorrow so ill be able to tell you A LOT more then...
Thanks again, Dan
. I'll be getting the vag com(ross tech) in the mail tomorrow so ill be able to tell you A LOT more then...Thanks again, Dan
Tech Guru
Joined: Oct 2002
Posts: 34,430
Likes: 130
Post the codes when you get them. Also, try to place your responses in the correct spot within the thread. Your response to me is tagged as a response to yourself. Take a look at threaded view if you don't know what I mean. Thanks!
Thread Starter
Audiworld Junior Member
Joined: Apr 2009
Posts: 19
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The best $270 I've spent! Once i had all the software installed and the cable connected i ran the scan and came up with a few errors around the car and a whole pile for the trans(see below) Well, I re-set all the codes for the trans and re-scanned, no problems. Test drove with again no issues... What I think happened was that when I pulled the fuse for the trans control(and all gear selector switches and locks) the computer saw all these things failing and immediately switched the trans into safe or "limp" mode. Summary: Problem solved, GET A VAG COM! haha...
Address 02: Auto Trans Labels: 01V-927-156.lbl
Part No: 4B0 927 156 G
Component: AG5 01V 2.8l5V USA 8509
Coding: 00000
Shop #: WSC 00000
4 Faults Found:
01236 - Shift Selector Locking Solenoid (N110)
31-10 - Open or Short to Ground - Intermittent
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent
00293 - Multi-function Switch (F125)
27-10 - Implausible Signal - Intermittent
00526 - Brake Light Switch-F
27-00 - Implausible Signal
P.S. I hope I posted this in the right place. I looked at the thread view and saw what you were talking about...
Address 02: Auto Trans Labels: 01V-927-156.lbl
Part No: 4B0 927 156 G
Component: AG5 01V 2.8l5V USA 8509
Coding: 00000
Shop #: WSC 00000
4 Faults Found:
01236 - Shift Selector Locking Solenoid (N110)
31-10 - Open or Short to Ground - Intermittent
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent
00293 - Multi-function Switch (F125)
27-10 - Implausible Signal - Intermittent
00526 - Brake Light Switch-F
27-00 - Implausible Signal
P.S. I hope I posted this in the right place. I looked at the thread view and saw what you were talking about...
AudiWorld Member
Joined: Apr 2009
Posts: 202
Likes: 0
From: Chicago IL.
Just a tid bit if you weren't aware
If you depress the gas pedal fully and up again three times within five seconds you can reset the TCM shift points. For instance.. If an old lady drives your car the shift points will be changed to her driving habbits. Then when you drive the car it will have "sluggish" shift points. Reseting the TCM by depressing the gas pedal and then drive it like you like, it will program according to your driving style. This is what I've been told at the dealer. (oh yeah, do it in park!)
If you depress the gas pedal fully and up again three times within five seconds you can reset the TCM shift points. For instance.. If an old lady drives your car the shift points will be changed to her driving habbits. Then when you drive the car it will have "sluggish" shift points. Reseting the TCM by depressing the gas pedal and then drive it like you like, it will program according to your driving style. This is what I've been told at the dealer. (oh yeah, do it in park!)
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Audiworld Junior Member
Joined: Feb 2009
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Just a tid bit if you weren't aware
If you depress the gas pedal fully and up again three times within five seconds you can reset the TCM shift points. For instance.. If an old lady drives your car the shift points will be changed to her driving habbits. Then when you drive the car it will have "sluggish" shift points. Reseting the TCM by depressing the gas pedal and then drive it like you like, it will program according to your driving style. This is what I've been told at the dealer. (oh yeah, do it in park!)
If you depress the gas pedal fully and up again three times within five seconds you can reset the TCM shift points. For instance.. If an old lady drives your car the shift points will be changed to her driving habbits. Then when you drive the car it will have "sluggish" shift points. Reseting the TCM by depressing the gas pedal and then drive it like you like, it will program according to your driving style. This is what I've been told at the dealer. (oh yeah, do it in park!)
AudiWorld Member
Joined: Nov 2003
Posts: 452
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I was told by a fellow C5 driver that the learning function of the TCU can be turned off by changing the code. I know a lot of people do the 00032 code, so this would change to either 10032 or 01032, Can't remember which. I ran my A6 and S6 this way. (*Not applicable to the rs6)
FWIW, Jim
FWIW, Jim
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