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Hi,
my front running light started staying on when alarm set. Then my air con started sticking and then my ctl stopped working. Confirmed today that it is my front Control Box module that has signs of water damage and corrosion.
To buy new, these are coming up at £530 + Vat = £636.
I have the parts serial number and was wanting to know if anyone can recommend a reputable supplier to buy a second hand one from?
The auto electrician reckons all 3 issues may be related to the same control box module.
Cheers
 

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Hi,
my front running light started staying on when alarm set. Then my air con started sticking and then my ctl stopped working. Confirmed today that it is my front Control Box module that has signs of water damage and corrosion.
To buy new, these are coming up at £530 + Vat = £636.
I have the parts serial number and was wanting to know if anyone can recommend a reputable supplier to buy a second hand one from?
The auto electrician reckons all 3 issues may be related to the same control box module.
Cheers
Hello & welcome, I don't know for sure but you could try Rimmer bros, or british car parts. There is a known issue where the water travels from the washer pump back up the wire and into the CJB, cars under Jaguar Approved warranty get a repair. There is a replacement washer pump to prevent it happening again.
 

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It only applies to the facelift models, and looks like they will all fail eventually depending on how much use the screen washer pump gets. The new improved pump is part number C2Z30987 which cost around £70 there is also an aftermarket C2Z30987A at about £40, both available from justjags. It is less than an hours easy diy to swap the pump over and a worthwhile preemptive fix imo. If you want to do a quick check to see if it's already bit you, take the cover off the CJB right side drivers footwell and pull off the C5 connector which is the top left connector and check inside for corrosion/moisture.
Like IRXFS stated if under warrenty you will get it fixed if not you are looking around
£1300 all up for dealer repair. The problem is a lot of feacelifts will be out of warranty by the time it hits them, hence to diy the pump and save the grief.
 

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Although my C5 connector is showing no sign of corrosion I’m going to replace the washer pump as a preventative measure. Ordered the part from justjags and local independent Jag specialist has quoted £36 to install it (could do it myself but that seems a fair price). So ~£120 investment to (hopefully) avert what some forums are describing as an ‘inevitable’ future electrical issue.


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I too have ordered a replacement screen wash pump as a preventative measure, but now fear I may have jumped the gun!
I have a Sportbrake and I read on another forum that this has a different pump and therefore does not suffer from this issue.
Can anyone confirm this is the case?

Also - note to moderator - should this thread be moved into the 'technical discussion' area?
 

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Have now confirmed with 'Just Jags' (justjagsuk.com) that the Sportbrake screen wash pump is different to the saloons so fingers crossed the same issue does not afflict the Sporkbrake!
Can recommend Just Jags - fast service and excellent after sales support. They've agreed to take-back the pump I ordered with no surcharge other than I pay return postage (which is fair enough as it was my error).
 

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XFNI don’t you believe it, my Sportbrake 2013 has just gone in for a service and just like everyone else BAM £1400 from Hendy Jaguar. What is even more annoying is that I have been complaining about the windscreen washers since 2016. Poor from the Dealers as I would expect them to let you know there is a potential time bomb with their pump!! And a simple cheaper replacement with the new upgraded version would resolve the issue.
 

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XFNI don’t you believe it, my Sportbrake 2013 has just gone in for a service and just like everyone else BAM £1400 from Hendy Jaguar. What is even more annoying is that I have been complaining about the windscreen washers since 2016. Poor from the Dealers as I would expect them to let you know there is a potential time bomb with their pump!! And a simple cheaper replacement with the new upgraded version would resolve the issue.
I have a 2014 Sportbrake and have just had the washer pump / control box issue. On the Sportbrake the washer pump connector on the CJB is the blue C7 connector at the bottom of the junction box, not the grey C5 connector at the top. The washer pump has two water outputs (for the rear window) and that is the difference. I was fortunate that we were able to clean up the corrosion on the CJB and hard wire the broken connection. I replaced the pump and also replaced the headlamp washer pump which was showing water inside the connecting plug. I replaced both pumps and put a break in the wiring as per the Jaguar Technical Bulletin.

50125
IMG_6300.jpeg
 

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Well done goldie, good for you doing it yourself. Perhaps if i had known it was going to cost so much i would have given it a try. I complained to Jaguar and at the moment we are in discussion, first attempt was a straight refusal to accept any liability but as this is a recurring problem for me rather than a one off i thought i would give them a second chance to help out with some of the cost. We’ll see what happens, but appreciate the pictures.
 

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Can't take all the credit. Local garage fixed the CJB wiring as, due to the fault, car wouldn't start and was recovered to them. It really depends on how much damage has been done to the CJB. the picture shows the headlamp washer pump. Worth taking wheel arch plastic cover off and have a look at the pumps every now and again. Access to the washer bottle / pumps is easy once removed. Hopefully mine will be ok now. Good luck with Jaguar.
 

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Hi goldie, the picture of the CJB is that corrosion damage from the headlamp washer pump? Also if you don’t mind me asking how much did you pay your rather good local garage to repair this?

Thanks really appreciate your feedback.
 

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No, the damage was from the windscreen washer pump. The headlamp washer pump wiring goes to the Engine Junction Box. Initially the garage thought the ABS unit was faulty as all the fault codes pointed to that. The ABS was sent away for checking and came back as no fault found. I had emailed someone from an independent Jaguar garage who pointed us in the direction of the junction boxes. The local guys checked and found the corrosion. In fact, the broken connection was the 12v supply to the ABS, hence the assumption that was the fault. I also needed a new battery. Total cost was just over £500 including about £180 for the battery. Much better that the £1300 or so from Jaguar.
 

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Thanks for that. I wish that I had gone to my local now. Shan’t be going to a main dealer ever again. Seems to me that they see you coming!!!
Oh well, I shall try and be philosophical about it, it is only money after all.
 
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