I'm pleased to report that the uploaded List of DTC Codes on Wikipedia at https://en.wikipedia.org/wiki/Jaguar_XJ_(X350) were not taking down by the Wikipedia editors. Instead they put a "show" link, thus hiding the codes until one wants to see them.

Therefore, I would like to request that members of the forum start updating the "FIELD FINDINGS (AS CARS AGE)" column on the table next to the DTC code each time they fix something where the code showed up, but the factory description does not point to the problem. Gradually, this database will become more useful, especially as the cars get old and the original Jag information becomes less useful.

For example, when a low battery throws a whole bunch of codes, go to each code and write "this is known to display when the battery is low (below 12.2V) and when a new, fully-charged battery is installed and the codes clear, the error does not reoccur. In this case, in addition to this error code, the OBD recorded A#### and A####."

To edit Wikipedia, it is best if you sign up, and even better if you first make some safe changes elsewhere so you are seen as seasoned and trustworthy.

 

This is brilliant work and I will support it whenever I CONFIRM that a particular code was caused by a particular failure. As we all know these cars can be quite subtle about their symptoms when they are unhappy. I think we should all be conservative about reporting findings unless we are 90% confident.

Regards
Jeff

 

Hi, think they have pulled it as cannot see any reference to dtc's at all.
rrosscoe

 

Apparently DTC was removed due to WP:NOTMANUAL (Wikipedia is not a manual).
See edit 8 July 2021. (It wasn't me, though I tend to agree)
That being the case, perhaps the pointer to this thread should be removed from the stickies - There are other DTC lists in the stickies and I wouldn't know how comprehensive they are.