After removing the Dome light unit and unplugging the 2 associated harness plugs and subsequently reinstalling it all, I noticed that the mirror compass had reset itself to the "C" calibrate mode.
i checked that the deviation zone selected was correct and then drove in slow circles for a few minutes. No joy on the calibration process.
Regardless of tactic to restart the compass it always returns to "C".
I have tried, ignition sw cycle, deviation zone change, mirror compass sw cycle, drive in opposite direction circles. Still no joy.
The compass feature functioned properly before the Dome light unit R/R.

Any insight?

 

Has nobody else had this issue?

 

Had a similar issue with my S Type. Took about 1/2 hr of circling to calibrate.

 

Yikes!!

 

I've tried to reset the calibration of my rear view mirror compass. All I get now is "C" followed by numbers 1-15, presumably calibration zones (for the USA?) How do I recalibrate the compass for the UK (North east?)please

 

Here are the relevant pages from the Jaguar manual. Hope it helps ?

 

My 2004 XK8 mirror compass appears to have a mind of its own. The recalibration process sometimes takes 4 circles to complete and sometimes 30 circles won't do it. Then, once it is set it can hiccup and show a direction 30* or 90* or 180* off, without any apparent reason.
Luckily, I live on an island where it takes some real effort to get lost.