board_home 

Visit the
UK MOT Testing
Industry Website


Autotech Training Services


 Moderated by: Stealth, MOTman, KevG, bimmer
New Topic Reply Printer Friendly
Traction control light  Rate Topic 
AuthorPost
 Posted: Tue Jul 16th, 2013 12:54 pm
  PM Quote Reply
1st Post
Favell
Trade Member
 

Joined: Sun Apr 15th, 2012
Location: Leicester, United Kingdom
Posts: 193
Status: 
Offline
Mana: 
As previous posters have said, traction control light is not a fail item.

It'S worth checking the TC switch hasn't been knocked. On many cars you can turn the system off and the TC light will then be illuminated.

HTH

Fav

Back To Top PM Quote Reply  

 Posted: Mon Jul 15th, 2013 09:11 pm
  PM Quote Reply
2nd Post
dbm1966
Member
 

Joined: Sun Jul 14th, 2013
Location:  
Posts: 4
Status: 
Offline
Mana: 
thank you so do  u think it  would  be a mot failure as the amber light is showing and its constant  on

Back To Top PM Quote Reply

 Posted: Mon Jul 15th, 2013 01:24 pm
  PM Quote Reply
3rd Post
Favell
Trade Member
 

Joined: Sun Apr 15th, 2012
Location: Leicester, United Kingdom
Posts: 193
Status: 
Offline
Mana: 
'Traction Control' and 'stability control' functions are different.

Traction control will reduce the slip at the driving wheels under acceleration (usually by reducing the engine power). This is measured by taking a reading from the ABS wheel speed sensors.

Stability control reduces and attempts to prevent the car losing control due to spinning or going into a sideways slide due to loss of grip from any of the tyres.
The measurements for this function are taken from ABS wheel speed sensors, lateral or yaw sensors, steering angle sensors and possibly some others an the latest models. This can be done by reducing engine power or applying one or more brakes, or a combination of those.

So 'traction control' only operates under acceleration. Stability control can operate at any time whether accelerating, braking or cornering.

Traction control by itself is not considered a safety feature generally it will only come in slippery conditions such as greasy/wet roads or icy/snowy roads. It helps the vehicle to get moving and accelerate without wheel spin. It can usually be easily switched off.

Stability control IS considered a safety feature in that it helps to prevent loss of control of the vehicle - especially when baking and cornering on a slippery road surface.

This is only a quick and basic description of the difference between the two systems and what they are there for.

Hope that helps

Fav

Back To Top PM Quote Reply  

 Posted: Mon Jul 15th, 2013 12:32 am
  PM Quote Reply
4th Post
dbm1966
Member
 

Joined: Sun Jul 14th, 2013
Location:  
Posts: 4
Status: 
Offline
Mana: 
it say its part of it  but it works on its own

Back To Top PM Quote Reply

 Posted: Sun Jul 14th, 2013 11:48 pm
  PM Quote Reply
5th Post
DB9
Member
 

Joined: Sat Mar 2nd, 2013
Location:  
Posts: 377
Status: 
Offline
Mana: 
Is Traction Control, which by its wording says that it controls traction (wheel slip) the same as Electronic Stability Control, which controls traction at the road wheels not also the same thing?

Back To Top PM Quote Reply  

 Posted: Sun Jul 14th, 2013 11:03 pm
  PM Quote Reply
6th Post
dbm1966
Member
 

Joined: Sun Jul 14th, 2013
Location:  
Posts: 4
Status: 
Offline
Mana: 
what does it mean  when a amber  traction control light come on and is that a mot failure

Back To Top PM Quote Reply

 Posted: Mon Apr 22nd, 2013 01:24 am
  PM Quote Reply
7th Post
al
Member
 

Joined: Sat Aug 13th, 2011
Location:  
Posts: 88
Status: 
Offline
Mana: 
NITROS44 wrote:
There is a difference between traction control and electronic stability.
Without going too deep into the workings of a electronic stability control system,traction control makes up part of it to work In conjunction to help the stability of the vehicle during adverse conditions.

On the other hand traction control on its own is not a testable item as its more to do with helping traction in order to help the performance of a vehicle under hard acceleration.
In my opinion traction control lamp on is pass/advise.


That is basically what the man from vosa said

Back To Top PM Quote Reply  

 Posted: Sun Apr 21st, 2013 11:07 pm
  PM Quote Reply
8th Post
NITROS44
Member
 

Joined: Fri Jan 27th, 2012
Location:  
Posts: 230
Status: 
Offline
Mana: 
There is a difference between traction control and electronic stability.
Without going too deep into the workings of a electronic stability control system,traction control makes up part of it to work In conjunction to help the stability of the vehicle during adverse conditions.

On the other hand traction control on its own is not a testable item as its more to do with helping traction in order to help the performance of a vehicle under hard acceleration.
In my opinion traction control lamp on is pass/advise.

Back To Top PM Quote Reply

 Posted: Sun Apr 21st, 2013 06:47 pm
  PM Quote Reply
9th Post
afiafi1
Member
 

Joined: Sat Mar 10th, 2012
Location:  
Posts: 22
Status: 
Offline
Mana: 
i would fail,

Back To Top PM Quote Reply  

 Posted: Sun Apr 21st, 2013 04:45 pm
  PM Quote Reply
10th Post
al
Member
 

Joined: Sat Aug 13th, 2011
Location:  
Posts: 88
Status: 
Offline
Mana: 
Is this a failure or pass and advise, nothing in rfr actually stating that traction control is a failure .
I had a Astra in last week where the light was on. And after a phone call to vosa ( not just admin workers.) he said in his opinion that TC is a pass and advise.
But read in the motoring column today in the Sunday mirror , that it is a failure. ( but we all know to take with a pinch of salt what quinten Wilson thinks )

Back To Top PM Quote Reply

Current time is 11:13 pm  
MOT Forum - The MOT Testing Forum for the UK MOT Testing Industry > Public Category (Ask questions about your car and the MOT) > Pass or Fail? Ask about your car and the MOT | MOT Forum > Traction control light Top




UltraBB 1.172 Copyright © 2007-2011 Data 1 Systems