Little Box = Big Problems 89 XJ6 VDP
#1
#2
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Nathan:
I guess I'd get a replacement from a salvage yard. I'm sure Jagbits would be able to find one if you gave them a call - but any of the Jaguar-specific places are going to run into some bucks. Heck, try ebay.
I'm not saying that ECUs cannot fail, but in the short almost two years I've been learning about this car, I don't think I've ever heard of it happening. What is the problem you are hunting for which you think the ECU might be at fault? (Apologies if you have detailed that elsewhere and I didn't see it.)
Scott
I guess I'd get a replacement from a salvage yard. I'm sure Jagbits would be able to find one if you gave them a call - but any of the Jaguar-specific places are going to run into some bucks. Heck, try ebay.
I'm not saying that ECUs cannot fail, but in the short almost two years I've been learning about this car, I don't think I've ever heard of it happening. What is the problem you are hunting for which you think the ECU might be at fault? (Apologies if you have detailed that elsewhere and I didn't see it.)
Scott
#3
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I may have missed what the problems are as well.
However if you are needing a used replacement why not pop down to the Wanted Section and ask SPP a forum sponsor for a quote.
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Ask for our Jaguar Specialist ( Jaguar John or Carl )
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I don't know enough about electronics to even attempt to be able to help with diagnosis.
However if you are needing a used replacement why not pop down to the Wanted Section and ask SPP a forum sponsor for a quote.
![](http://i51.tinypic.com/291c86s.png)
Contact Us
(888)908-7575
Ask for our Jaguar Specialist ( Jaguar John or Carl )
British Division
Specialized Parts Planet
![](http://i52.tinypic.com/11jreix.png)
I don't know enough about electronics to even attempt to be able to help with diagnosis.
#4
#5
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Nathan:
There is an excellent chapter on aircon issues (particularly a nuisance on the 88s & 89s I understand) in the XJ40 book at the Jag-Lovers sight. You may already know about it, but here is a link. Beyond that, I have no personal experience with these issues except for praying against never having to worry about them on my car! Best of luck. I'm sure you'll get it all sorted out with time. Cheers, Scott
http://www.jag-lovers.org/ebooks/vie...j40&Vsection=9
There is an excellent chapter on aircon issues (particularly a nuisance on the 88s & 89s I understand) in the XJ40 book at the Jag-Lovers sight. You may already know about it, but here is a link. Beyond that, I have no personal experience with these issues except for praying against never having to worry about them on my car! Best of luck. I'm sure you'll get it all sorted out with time. Cheers, Scott
http://www.jag-lovers.org/ebooks/vie...j40&Vsection=9
#6
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Hoskins,
This is what could happen when an A/C ECU goes bad:
http://www.jag-lovers.org/include/iv...Cf6WmMgzuRQ%3D
Regarding the ECU, If you found it dangling, make sure all the connections are seated properly, as well as the ground. It attaches via two screws in the vicinity where it's located.
I think your problem is related to the micro switch associated with the A/C Control knob. Those do go and can easily and inexpensively be replaced . If the ECU did in fact give up the ghost, I got mine on Ebay. Make sure you get the correct one for your model.
This is what could happen when an A/C ECU goes bad:
http://www.jag-lovers.org/include/iv...Cf6WmMgzuRQ%3D
Regarding the ECU, If you found it dangling, make sure all the connections are seated properly, as well as the ground. It attaches via two screws in the vicinity where it's located.
I think your problem is related to the micro switch associated with the A/C Control knob. Those do go and can easily and inexpensively be replaced . If the ECU did in fact give up the ghost, I got mine on Ebay. Make sure you get the correct one for your model.
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