Traction Control Light issue. Lets solve this.

[f1torrents]

I have read lots of threads about this issue. It seems to be an inconvenience but not enough for serious effort.
I have lived with this for months now, and because its very intermittent I don't think much of it.
But now is the time...
Lets get together and solve it.

ISSUE
-------
--Traction control light's up solid and will not go out until the ignition is cycled ON/OFF--

It usually happens at low speed with hard turns. ie parking lots.
Pressing the traction control button has no effect.
Traction control is disabled while the light is solid on.
Intermittent failure, once every few weeks or so.

CAUSE
--------
I have heard many opinions including

-ABS sensors in the wheels
-Traction Control button is broken
-Possible bad grounds

SOLUTION
-------------
--INSERT SOLUTION HERE--

Ok so lets work together on this.

I have a VCDS auto scan.
I have never had the problem until recent and this code is the only one that comes up when it happens.
The other DTC's listed here are know to me to not be related. They have there own causes and have been stored before this issue started.

This is what I think is the culprit.

"1 Fault Found:
00526 - Brake Light Switch-F
36-10 - Open Circuit - Intermittent"


-------------------------------------------------------------------------------
Chassis Type: 8E - Audi A4 B6/B7
Scan: 01 02 03 08 09 0F 11 15 16 17 18 36 37 45 46 55 56 57 65 67
69 75 76 77

VIN: WAULCXXXXXXXXX Mileage: 132940km/82605miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06B-909-518-AMB.lbl
Part No SW: 8E0 909 518 AK HW: 8E0 909 018 A
Component: 1.8L R4/5VT G 0004
Coding: 0016711
Shop #: WSC 63351 000 00000
VCID: 79F2F160495F

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517 A
Component: ABS/ESP allrad 3429
Coding: 04275
Shop #: WSC 06435
VCID: 2648EA1CE861

1 Fault Found:
00526 - Brake Light Switch-F
36-10 - Open Circuit - Intermittent

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 AD
Component: A4 Klimaautomat 1323
Coding: 00000
Shop #: WSC 63351
VCID: 63CEB308DBD3

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8E0-907-279-8E2.lbl
Part No: 8E0 907 279 F
Component: int. Lastmodul USA 0517
Coding: 01013
Shop #: WSC 63351
VCID: 356A3D5025C7

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8E0-959-655-84.lbl
Part No: 8E0 959 655 K
Component: Airbag 8.4EP 1001
Coding: 0010607
Shop #: WSC 63351 000 00000
VCID: 3F865F7817FB

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8E0-953-549.lbl
Part No: 8E0 953 549 N
Component: Lenksáulenmodul 0611
Coding: 01021
Shop #: WSC 63351
VCID: 3E78227C10F1

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8E0 920 950 L
Component: KOMBI+WEGFAHRS. RB4 D37
Coding: 01331
Shop #: WSC 01116
VCID: 3260064CD4A9
WAULC6XXXXXXXX AUZ6Z0C0439357

2 Faults Found:
01315 - Transmission Control Module
49-00 - No Communications
01304 - Radio
49-00 - No Communications

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8E0-959-433-MAX.lbl
Part No: 8E0 959 433 BB
Component: Komfortgerát T7B 1512
Coding: 11848
Shop #: WSC 63351
VCID: 72E0C64C1429

Part No: 8E1959801B
Component: Tõrsteuer.FS BRM 0003

Part No: 8E1959802E
Component: Tõrsteuer.BF BRM 0004

Part No: 8E0959801A
Component: Tõrsteuer.HL BRM 0004

Part No: 8E0959802A
Component: Tõrsteuer.HR BRM 0004

2 Faults Found:
01374 - Alarm triggered by Terminal 15
35-00 - -
01573 - Alarm triggered by Door Contact Switch; Left Rear
35-00 - -

-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D09
Coding: 00060
Shop #: WSC 63351
VCID: 040C90943E9D

No fault code found.

End ---------------------------------------------------------------------

Can anyone else confirm this or offer any info on the solution to this?

[f1torrents]

Here is the ROSS TECH fault.
http://wiki.ross-tech.com/wiki/index...it_Malfunction

BTW it is not related to the auto trans listed on the ross tech link.
I have a 6SP but my cluster was swapped.
I have not had the "00526 DTC" until the traction control issue started.
So I can rule out the Auto trans issue causing the DTC.

[f1torrents]

Found this from another site.

"I had my esp light come on all the time when I would press the brake in my car and it was the brake light switch, no symptoms other than esp light would come on. I think you are chasing 2 problems here, the brake light switch from the dealer cost me under $10 and they fail all the time and is easy to change yourself so I would start there. "

Seems promising :)

[f1torrents]

Another find that might help others.
Assuming the brake light switch is not at fault.

"Did you try to adapt the steering angle with VagCom? Bad or no calibration will keep the ESP light ON

This procedure details how to perform the zero position calibration for the Steering Angle Sensor (G85) in many VW/Audi vehicles equipped with ESP (Electronic Stability Program).


There are certain test conditions that must be met before doing this procedure:
Start the vehicle.
Turn the steering wheel one turn to the right and one turn to the left.
Drive in a short distance straight line on a level surface at a speed not higher than 20 km/h.
If the steering wheel is straight during the test drive then stop the vehicle with the wheels pointed straight
Ensure that the steering wheel is not moved again.
Keep the engine running and do not switch off the ignition.

Procedure for performing the zero position calibration for the Steering Angle Sensor (G85) on VW Passat and Audi A4/S4, A6/S6, and A8/S8:

[Select]
[03 - ABS Brakes]
[Login - 11]
Enter 40168
[Do It!]
[Basic Settings - 04]
Group 001
[Go!]

This will store the zero (centered) position of the steering wheel. There should be a displayed message that reads: "Steer. angle sender compens OK". If you get an error, it may mean the Login was not successfully performed.

Click the [Done, Go Back] button and you're all set. "

[boarderx100]

Did you ever figure out the issue with this? I'm getting the same symptoms. The dealership told me it has to do with the brake light switch and they would charge $160 to replace it (less than $10-15 for the part and the rest in labor). I'm going to replace it myself but just haven't gotten around to it..

[f1torrents]

I bought it from the dealer. It was around 10 bucks.
Took about 3 minutes and no tools to install it.

Fixed the issue 100%.

There is a DIY on the correct way to install it. Lots of people break them doing it incorrectly. There is a auto alignment thingy inside it and a 1 time break away tab. If you turn it and it's not aligned correctly you have to go buy another.
I got mine first try.