Hello,

This is on and I've no idea where it's coming from.
It seems to be a anti-lock braking system issue

More information for me?
Thanks.
yA

 

The ABS light is switched on in the following conditions.

Very low reservoir oil.
Faulty ABS sensor or wiring.
Low pressure in the ABS system.

Check your reservoir level first. Then I would check all the wheel sensors and exposed wiring for damage.

I have uploaded a diagnostic guide, hopefully this will help you isolate the fault.

 

Hello Warren, thank you I'll check it directly.
Stupid question where are the ECM and ABS terminals?
Cheers,
Laurent

 

Mine will sometimes flash briefly when I hit the brakes. I hear a relay click in the dashboard, the ABS light activates for less than a second, then the BRAKE light for less than a second. Then they both go out. 1989 V12 car.

Jess

 

The ABS controller is in the boot on the left side up inside the buttress.

ABS sensors are pins 22,23,24 & 25 on the controller. But check the exposed wiring under the car first for signs of damage.

 

yA,

Drive carefully until you fix the problem. If the ABS light is illuminated then the system has disabled the ABS on the car.

Paul

 

Hello Paul,
Thank you I'll drive carefully.
yA

 

btw, this is a good source of information on the subject:

http://www.jagrepair.com/images/Elec...S%20Update.pdf


I'm also trying to run down a problem with my system. Seems after a drive the other day the brakes were very, very hard and the anti lock light came on.

I have checked wheel sensors, the 30 famp fuses, fluid level and even changed out the pressure switch from a parts car. Still have "hard" brakes without power assist.

Do I need to bleed the brakes again ?? Although I don't know how air would have gotten into the closed system....

Seems might be a power boost failure somewhere ??

Ken in WV

 

finally broke down and bought an accumulator... that did the trick....
ken

 

Hi. I am having the same issue on my 1990 Jaguar XJ6 Sovereign. The ANTI lock break light comes on no power breaks. The question is what is the accumulator? I cant find it listed as a part at my local part houses.

 

The black ball that looks like a small cartoon bomb is the accumulator.

I find my abs light came on in very hot traffic, I've wrapped the whole pump assy in heat reflective wrap which helped.

When exactly is the light on?

 

Although I have accumulated the age number of 77, considered old ny many and sometimes considered caustic, I learned my way around all of my cars
by way of google or what ever search engine you use on your computer. It's a great place to start your own learning curve... To help you find your way
with your particular Jaguar, or whatever, try googling it or anything else you need. You will receive a lot of good information that way.

To give you a hint: Type the year, make, model of your car then type in "brake accumulator".

Good luck.

Ken in WV