1989 XJ6 I had a leak in one of my pressure values for the power hyd system under the rt front of my car replaced the value and filled the green box with mineral oil but the low brake pressure and the anti-lock brake messages are still on the message center this all started when I went to get my altenater belts replaced I knew it was leaking but not real bad when I got the car back my battery light was on and the alt was not charging the low brake pressure and anti-lock messages were on the message center I changed the alt but the battery light is still on and not charging so I took it to a atl shop but the brake messages are still on the the dash driving me crazy any ideas thanks

 

It sounds like you might have a ground problem or some wiring got disturbed when the belts were changed, but I'm only guessing here ... and it's possible there are multiple issues ...however, if all the trouble started when the belts were changed and the replacement alternator doesn't charge it does sound like the alternator harness and/or related circuitry/relays might have been damaged during the changeover?

You might want to check that the alternator(s) are OK by testing them off the car, i.e. at an auto-electric shop, at least that would eliminate one possible faulty component.

It may or may not help, but you could also do a hard reset after you identify the issue. You do this by disconnecting both battery terminals and touching the cables together for about 20 seconds. On some model years, this can reset the system to the default settings and MIGHT clear your codes.

HTH

Larry

 

Thanks Larry ill give it a try

 

Hi Charlroi19,

Welcome to the Jaguar Forums!

I had seen your previous post about the ABS system but had not had time to think through possible causes of your symptoms. I think it would help us help you if you could give us a list, in chronological order, of what symptoms have appeared and what work was done, starting at the beginning of the first malfunction.

If you could provide this information in list form, it will be easier for us to understand, since your run-on paragraphs with no punctuation make your messages difficult to read and understand.

Line breaks are also helpful!

Cheers,

Don

 

found the problem, I had a bad load dump module thank you