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1988 Jaguar Sovereign Anti locking failure

ancaf33
Posts: 31
Joined: Wed Dec 19, 2018 1:11 pm
Location: Sweden

1988 Jaguar Sovereign Anti locking failure

Postby ancaf33 » Tue Sep 10, 2019 8:16 am

Hello,

My newly acquired sovereign needs to go for an MOT and it has anti locking failure (the model has the digi dash so cannot just remove the bulb haha). I spoke to a knowledgeable person here in Sweden and he said it might be the overvolt relay. I took it out and re soldered it, but still no luck (have ordered another one just in case). What should I do now?

Kind regards,
Karolina

naki_k
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Re: 1988 Jaguar Sovereign Anti locking failure

Postby naki_k » Tue Sep 10, 2019 9:46 am

Check all the ABS sensors for continuity, with a multimeter. (If you are not sure how, You Tube).
Next, you will be soldering the ABS ECU....
88 3.6 XJ6 PDH/CEM
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Breaking 40/ 300

stevemc
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Re: 1988 Jaguar Sovereign Anti locking failure

Postby stevemc » Tue Sep 10, 2019 9:48 am

have you driven it for a distance they can go off after a drive espicially if laid up for a whilst, there is also a fuse inside the over voltage relay have you checked that besides soldering the conections
Jaguar xj40 1986 build D513 NBU vin number ends 504501
Audi A4 Sline 2016

ancaf33
Posts: 31
Joined: Wed Dec 19, 2018 1:11 pm
Location: Sweden

Re: 1988 Jaguar Sovereign Anti locking failure

Postby ancaf33 » Tue Sep 10, 2019 12:59 pm

I did check the fuse, and the fuse is fine. It did stand for quite some time I believe, and the issue was supposedly fixed in 2016. Taking it for a 2 hour drive tomorrow when I'm picking up some non metric wheels. Where are the sensors located?

Kind regards,
Karolina

pimgmx
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Re: 1988 Jaguar Sovereign Anti locking failure

Postby pimgmx » Tue Sep 10, 2019 1:16 pm

ancaf33 wrote:Where are the sensors located?

Wheel hubs carriers x4, i.e. one per wheel.
Follow the wire from the wheel well and you'll find them!

Here's a pic taken when I removed the ABS sensor from the rear hub carrier on my Sovereign:
Image

And here's a pic of a front hub assembly, near the finish line of my front suspension & brake rebuild ;) :
Image

the daily: 01 S8 http://bit.ly/2kIwP4m
the tractor: 77 LaRo LW https://bit.ly/2Hr9n6y
the eyecatcher: 93 Insignia http://bit.ly/1iGrmsU
the GT: 89 XJS http://bit.ly/1WQGpC5
the project: 95 X306 http://bit.ly/1cW11DN
the pocket rocket: 97 Z3 http://bit.ly/12IfE7B
the ex: 93 3.2 http://bit.ly/14GTNrq

ancaf33
Posts: 31
Joined: Wed Dec 19, 2018 1:11 pm
Location: Sweden

Re: 1988 Jaguar Sovereign Anti locking failure

Postby ancaf33 » Tue Sep 10, 2019 1:37 pm

Thank you very much for the photos, it helps immensely. I will check it tomorrow when I have some time. I really hope it will go away so I can take it to the MOT without worries.

ancaf33
Posts: 31
Joined: Wed Dec 19, 2018 1:11 pm
Location: Sweden

Re: 1988 Jaguar Sovereign Anti locking failure

Postby ancaf33 » Wed Sep 11, 2019 12:39 pm

Woho :D I fixed it. It was the relay that was bad, so the new one solved it, no more warning :) Now I just have to fix the bulb warning..

edit: it came back... when I drove hopefully just a bad connection

pimgmx
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Re: 1988 Jaguar Sovereign Anti locking failure

Postby pimgmx » Wed Sep 11, 2019 2:49 pm

It's the ABS warning that has come back?
Check/clean the relay socket and relay pins, as well as the ABS sensor connectors, that hopefully does the trick!

Bulb failure:

1) If you have made sure that ALL bulbs are OK (including the boot lid mounted license plate lights), check the indicator lights on the front wings.
They might still work/behave normally, but corroded bulb holders can 'fool' the system into thinking the bulbs have blown.

2) Check the bulb failure modules for bad solder joints. The BFMs are 4 black plastic boxes, one for every corner of the car, basically. Use the forum's search function, there should be a ton of information about them here!

the daily: 01 S8 http://bit.ly/2kIwP4m
the tractor: 77 LaRo LW https://bit.ly/2Hr9n6y
the eyecatcher: 93 Insignia http://bit.ly/1iGrmsU
the GT: 89 XJS http://bit.ly/1WQGpC5
the project: 95 X306 http://bit.ly/1cW11DN
the pocket rocket: 97 Z3 http://bit.ly/12IfE7B
the ex: 93 3.2 http://bit.ly/14GTNrq

ancaf33
Posts: 31
Joined: Wed Dec 19, 2018 1:11 pm
Location: Sweden

Re: 1988 Jaguar Sovereign Anti locking failure

Postby ancaf33 » Wed Sep 11, 2019 10:13 pm

Yes it's the abs, How can I remove the socket from its holder? Would be alot easier to clean if I can remove it :) Will try the things regarding the bulbs, thank you!

stevemc
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Re: 1988 Jaguar Sovereign Anti locking failure

Postby stevemc » Thu Sep 12, 2019 10:06 am

small screw side of lens on mine then two little screws on the holder they then pop off small rubber gromet hold them to wing as well.
be carfull they fragile as anything
Jaguar xj40 1986 build D513 NBU vin number ends 504501
Audi A4 Sline 2016