tanngo, if you've cleaned your wheel sensors, and you know your battery is good, then it can either be the wiring and/or connector to a wheel sensor, or the internal to the ABS module.

If you can just get the codes read from the dealer, you can narrow it down with them. If it shows a Hydrauilc Pump Failure as the ABS code, the module needs rebuilt.

If its a wiring harness or connector, the code will at least point out which corner is having the fault. Sorry, that's the best advice I can offer, and what I would do if I were in your situation.

 

I understand perfectly, thank you very much, I have no service in Argentina jaguar, your help is invaluable,

 

tanngo, please open the test procedure from jagrepair.com for the ABS module.
http://jagrepair.com/images/AutoRepa...heet%20XK8.pdf
Disconnect the battery before proceeding. Check the resistance of each wheel speed sensor. They should be the same, maybe 1.1 Kohm, not necessarily 2+. Then disconnect the plug to the pump, and connect the battery to the plug with test leads and you should hear the pump run. If both tests work, it probably means the ABS module needs to be repaired.
RJ_____________
97 XK8 86K mi

 

perfect summary, thanks very valuable