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Author Topic: Traction Control Light On  (Read 4222 times)

Offline maxamplitude10

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Traction Control Light On
« on: February 25, 2021, 07:35:55 am »
Guys parked up the Ed30 yesterday and :confused: all was well, started it this morning and the traction light is on. :confused:
Any common causes i should be investigating to begin with?

Thanks
Max

Offline mjmallia

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Re: Traction Control Light On
« Reply #1 on: February 25, 2021, 07:51:44 am »
Any dash lights on, as I had three on mine when I had a faulty rear sensor/magnetic ring.

Maybe plug into VCDS to get some codes.
Mike

South Coast

S3 8L ---- Golf Mk4 GT TDI ---- Lupo GTI ----  A4 B6 Sline ---- Golf Mk5 GTI

Offline GVK

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Re: Traction Control Light On
« Reply #2 on: February 25, 2021, 08:42:06 pm »
Strange to just have the traction one on.

If there's an ABS fault you usually get the 3 as above!

ABS/Traction/TPMS.

Offline maxamplitude10

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Re: Traction Control Light On
« Reply #3 on: February 27, 2021, 12:06:25 am »
Yes only yellow traction light on dash, very odd......It's like the traction button has been pressed to turn it off?
I will plug it in over the weekend hopefully and see whats stored in codes.

Thanks
Max

Offline maxamplitude10

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Re: Traction Control Light On
« Reply #4 on: March 05, 2021, 06:35:34 pm »
Update, just plugged into computer and have the following code:
059 B - Brake Pressure Sensor (Electrical Fault In Circuit)

Any ideas guys?

Cheers Max

Offline pudding

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Re: Traction Control Light On
« Reply #5 on: March 05, 2021, 08:26:22 pm »
It will either be the brake light switch (behind the brake pedal) or the brake pressure sensor, which should be screwed into the ABS pump.


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline maxamplitude10

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Re: Traction Control Light On
« Reply #6 on: March 05, 2021, 10:14:17 pm »
Pudding is the pressure sensor available separately from the ABS pump itself then?

I'll check both items tomorrow and feedback any findings..

Thanks again
Max

Offline pudding

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Re: Traction Control Light On
« Reply #7 on: March 05, 2021, 11:44:21 pm »
Hmmm, looks like the pressure sensor is actually built into the ABS pump  :confused:

https://www.actronics.co.uk/acinsights/ate-mk60



2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline GVK

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Re: Traction Control Light On
« Reply #8 on: March 05, 2021, 11:48:07 pm »
Back in the day when I worked at VW this fault under warranty was a case of checking MVB for brake light switch input then if that was ok , new ABS pump.

Nowadays can get them repaired by people like BBA reman. ECU testing etc.

https://www.mk5golfgti.co.uk/forum/index.php/topic,131407.msg1146552.html#msg1146552

As in above thread I have seen this fault so common in Ford/VW/BMW when working in the main dealers.
« Last Edit: March 05, 2021, 11:56:21 pm by GVK »

Offline maxamplitude10

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Re: Traction Control Light On
« Reply #9 on: March 06, 2021, 08:11:09 am »
Guys thanks for the input, after further investigation and collecting some live data I have come to the conclusion the abs pump is knackered. I have a constant reading of 214 BAR from pressure sensor which doesn't change when brake pedal is pressed and it also seems like an insanely high pressure to have in a braking system!!!!!!
Also after some googling as GVK states this seems to be a common issue..... Time to get the toolbox out again :confused:

Cheers Max

Offline pudding

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Re: Traction Control Light On
« Reply #10 on: March 12, 2021, 07:03:03 pm »
A good excuse to upgrade to the MK6's XDS pump  :laugh:  I don't know how involved it is though!


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D