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1990 Jaguar XJ6

Old 08-13-2018, 10:01 AM
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Default 1990 Jaguar XJ6

Hi: I have a 1990 Jaguar XJ6. I would like to know the location of the CBD diagnostic input. Also I have a transmission warning light on all of the time. It seems to clunk when put into reverse from park and also it seems not to shift up to overdrive and stays in maybe 3rd gear while driving. Any advice would be greatly appreciated.
Old 08-13-2018, 11:38 AM
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Welcome to the forum John,

Good to have you with us at Jaguar forums.

Follow this link
https://www.jaguarforums.com/forum/xj40-xj81-25/ to the XJ40 forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for information on regular issues.

Please add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.

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Enjoy the forums.


Last edited by GGG; 08-14-2018 at 03:10 AM. Reason: Activate links
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John Sentineal (08-13-2018)
Old 08-13-2018, 05:14 PM
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Welcome aboard John.
Old 08-13-2018, 05:38 PM
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Hi John,welcome to the forum, if you are asking about an OBD port? These cars are only OBD1 and there is not a port as such.
I believe there is a port situated in the boot (trunk) that the proprietary Jaguar diagnostics plunged into but this was generally dealer only.

Last edited by Robman25; 08-13-2018 at 05:39 PM. Reason: Punctuation
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John Sentineal (08-13-2018)
Old 08-13-2018, 06:00 PM
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Hello, John,
Welcome to the forums from ElinorB.
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John Sentineal (08-13-2018)
Old 08-13-2018, 08:26 PM
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welcome to the forum - enjoy!!!
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John Sentineal (08-13-2018)
Old 08-14-2018, 02:30 AM
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Welcome to the forums.
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John Sentineal (08-14-2018)
Old 08-14-2018, 04:11 AM
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Welcome to the Forums.
Old 08-14-2018, 06:33 AM
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Welcome to Jaguar Forums John,

Good to have you with us.
Enjoy the forum.

If you haven't done so already you should add your car details to your signature to help others to help you.
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