I cleaned the wheel speed sensors and (briefly) checked the wiring harnesses-No change. Fixed the two broken solder points on the ABS Module circuit board-Messages cleared immediately! Now, less than one week and 10 miles later, the two messages are back on. I had heard it would take a while to clear the messages, but they had cleared immediately after the ABS Module fix, but are now back on. What gives?

 

Poppyboy, I can give you a bit of encouragement, after a fix or two on his 2003 we had to drive over a hundred miles for one light to go out and a 150 on the other. They were a check engine (knock sensor) and restricted performance, so don't give up too quick.


Wayne

 

It's also possible you didn't use enough heat on the pins, ot they weren't clean enough for the solder to flow properly. On one of the repairs I did I had to use a little paste flux to get a good connection, then cleaned with water and a q tip after to prevent corrosion.

A second possibility is that you have a cable with an internal break.

 

Thanks. I'm pretty sure I got the solder right. In the end, both were globs with no voids-unless I used too much. Again, the messages cleared right away. I'd think if I did a bad soldering job, the messages would have stayed on, but who knows with this fussy cat. If there's an internal break in a cable somewhere...the messages will have to stay.

 

You need to get the DTCs from the module or will just guess yourself to DEATH!!!!!!!!!!!!!!!

bob gauff

 

I did what you did , i even replaced one of the Sensor harness,s after OHMNing each set with the sensors disconected . i replaced 2 of the sensors just for Fun and soldered the Module and put it back together , Oh did i mention that i bought another module for Fun and put that on aswell , i sure love those star shaped bolts !
So its been about 125 miles and ive still got the codes , a Jag guru said he had a pooter that could wipe ABS codes , im thinking he smokes something other than tobacco.
If you figure out some weird ABS fix please share it .Still beats a Dealer who wants 4K for the Module only plus sensors , wires , etc etc

 

Thanks, Bob. I'm trying to get my hands on a decent OBD II reader so I can provide the codes. Stay tuned!

 

Will do. I'd rather keep the messages than throw $$$ at them, but hindsight is 20/20...

 

I did all that you did including changing a harness and re soldering the pins - eventually gave in and sent the module to ASI who did whatever they do to it - it's been perfect ever since. Although the solder joints are the commonest failure other components fail as well. BUT as others have said get the codes read first and post them here.

 

its under $100 to have your module repaired , I go that route now,as the companies do a professional repair/upgrade job.

 

Thanks. The messages are gone for now. I'm still waiting for delivery of my OBD II reader so I can scan for codes. I'll hold off on throwing money at it until I have a better idea of the problem.

 

Most OBD readers will not be able to read codes off the Jaguar abs module, unless its says so.

 

Just got the OBD II reader, but the Jag's in the shop getting new front bushings and cam cover gaskets...checking the chains, tensioners and guides. Stay tuned x2....FWIW, the messages were still out when I brought it in to the shop...

 

May all your codes disappear and all your highways be deserted. Enjoy the car....

 

While in Chicago, highways will never be deserted, but I still hope to (eventually) have no codes. Thanks!

 

Here's an update: My mechanic pulled the PS cam cover. Very disappointingly, the guides and tensioners are plastic, despite a 5/02 engine code and build date. He told me the chains, tensioners and guides all look fine (on that side, at least). As controversial and unpopular as this may be, even with 90k miles, I am NOT going to replace the chains, guides and tensioners. I don't plan to put many miles on the car, and my mechanic will indicate in the paperwork that one bank was inspected. Sorry, but I just don't want to get into the whole replacement, especially since I'm much more into the car than its worth already.

 

Some Plastic Tensioners

 

There is really no need to replace everything at this time, but the secondaries are not that expensive or difficult to do using the zip tie method.

Your mechanic isn't the one at risk of losing an engine.

 

Understood, but I'm certain he wouldn't mind making an extra buck if he felt it prudent to do the work. I'll have a look at the tutorials for the zip tie method.

 

The link below will provide you a testing procedure that works on 1999 xk8 and several have used it with on other MY cars with success. I would suggest that you ask the garage to record all the codes after they finish with your car and see if one of them are for your ABS problem. Look at the test procedure and give it a try if codes do not lead you to the problem.

Link JagRepair.com - Jaguar Repair Information Resource