Here in the UK new MOT (Ministry of Transport) regs sttes that ABS light must switch off between 1-5 seconds. If not it's a fail.

Now having had the dreaded TC/SC control failure warning I set about cleaning/replacing my sensors and looms. Now the fault's been cleared my ABS warning stays on longer than the requirement.

Will an ABS ECU overhall/refurb cure this you think? There is a place that will do it for me for £99 (the full PCB not just the pump joints).

Also how quickly do others find their ABS light switches off after start-up?

Look forward to your replies.

Regards

Mark

 

Mark,

From the Driver's Handbook for your MY. I've boxed the relevant section in red:



Jaguar give three to four seconds.

Graham

 

Check your battery or better get it discharge tested at a battery shop.

 

Battery is brand new (2 months old) and have checked it

Mne stays on for 8-12 seconds after engine is started so I'm assuming ABS ECU needs a refurb.

Anyone in the UK have experience of this guy?:

ECU Repair,ABS Repair,Cluster Repair,Bmw,Jaguar,Volvo,Landrover,Vauxhall

Regards

Mark

 

Hi.

First try a hard reset.

 

Erm, what's a 'hard reset'?

M

 

When in doubt look in the HOW-TOs
https://www.jaguarforums.com/forum/x...connect-74146/

 

Well done the hard reset. No TC/SC failure but ABS warning light now stays on permenantly in park or when driven!

Bummer :O(

Any other thoughts?

 

That's actually good! At least there's something to fix now.
Please read the OBD codes.

 

Don't have a reader, can you recommend a good/cheap one?

 

There's a thread a mile long here
OBDII Code Scanners ** Member Approved **
Many of us are very happy with a cheap bluetooth adapter from EBay
http://www.ebay.fr/itm/Android-Torqu...item3a7b2ac8f5
and an app called 'Torque' running on an Android phone.
They also do a cheapo standalone OBD reader that I keep in the boot.
__________________

 

Ideally would like a reader that I can also use on my 07 Audi A6 if at all possible.

Only one I can find on UK Ebay is this one from China, but from memory my uk 96 isn't OBDII

Wireless Bluetooth 327 Scanner OBDII OBD2 Diagnose tool Andriod Torque Auto code | eBay

 

Hi.

Sorry about that, but I think you would have had the warning permanently in a short time anyway.
The ABS light is a common fault. Lots of info in the "sticky" section how to fix it.

 

Oyster, thanks

Will read but dunno how much help given that all sensors and 3 looms have been replaced...natch could be one of the replacements is faulty however they've all been tried on my mates 99 xk8 and don't throw up any codes.

So am thinking it has to be the ECU

 

Just seeing if my autosig is on

 

Hi again.

I don't know how keen you are on doing things yourself, but here is my troubleshooting list:

- Battery fully charged.
- Clean wheelspeed sensors.
- Disconnect all applicable connectors, inspect pins, and spray sparsly with electrical cleaner.
- Check resistance of looms. About 1,1 kohms in your model.
- Open ABS module and resolder offending two loose wires.

The last point is somewhat complicated as the module is not supposed to be opened. A new module is fairly expensive, but the old one may be repaired by a specialist. Be aware that modules are different for different model years and options (ASC/Traction Control)

 

I agree with Oyster - if your 4 sensors all measure the same resistance it has to be the ABS module.

 

I'm not suggesting you do this, of course, but some people might be tempted to remove the ABS warning light bulb just to get through the MOT and then at least they would have a bit more time to sit back and think about getting the ABS system fixed...

 

as if we would..i would

 

That's a disgraceful idea.
Do you think they check it comes on when the key's turned though?
In that case it would need to be connected to another indicator that goes on and turns off.