Question about 2001 Jaguar XJ8

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Transmission Fault Light

Can someone please tell me how to reset my transmission fault light.
I replaced the transmission in my 1991 jaguar xj6 sov and it will not shift.The trans was shifting fine when remove from doner car. And what is the location of the OBO II connection.

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  • musclerussel Jun 25, 2009

    Thanks but I have tried the battrey disconnect several times.

  • musclerussel Jun 25, 2009

    I will give it a try.

    Thank you very much.



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Posted on Jun 25, 2009

  • alex MACHELL Jun 25, 2009

    have you tried disconecting the black box cause it is very possible that the computer has a back up power supply also try put in the vehicle info and ask your question they have alot of info that i have found helpful but with a jag i do not know there are also several sites that are like a haynes or chiltons car repair manual one of them in particular has all info that the dealer would have they want $25 a year for you to have access they update it all the time it has all schematics everything the dealer would ahve i dont remember the name off hand but it is in my favorites on my computer at home when i get home tonight i will find the address and send it to you



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I got a 2005 X-type Jaguar for the half the dealer's marked price knowing it was in limp mode. The dealer told me that the Jaguar dealer (where he inspected the jaguar) said the "2/4 brk duty solenoids"...

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Without knowing what the code is its hard to tell was is wrong. I can tell you when a x-type has this transmission fault light on about 90% of the time this means the tranny is failing or already has failed.
I would start by just shut ing the car off and restarting it. If the light persists your most likely looking at some type transmission problem, and its most likely major.

Also pay attention to how the car is shifting if their is any abnormality with the shift, i would get it looked at right away. To be honest ive replaced alot of these automatic transmissions, they are not the most reliable.

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