I know it seems incredible, but almost ten years ago my Specialist Jaguar Garage replaced my radiator and oil cooler thing apparently because of a sheered bolt or similar excuse, I don't exactly remember. Anyway ever since then my cruise control reports that it is unavailable. The ASL works fine, which is what I use most of the time to avoid tickets, but up until recently I've hardly ever needed to use the cruise control. However now things have changed and I would like to have it operational. I would really be most grateful if anyone can please tell me if there's an accessible plug & socket that the garage may have failed to connect properly which I could check or perhaps cable damage or indeed if there's an easy way to detect if the cruise module has failed. It does seem a little strange that it would fail whilst in the garage for radiator repairs. The garage seem unable or unwilling to investigate. Thanks loads.

 

The two occurrences are likely unrelated.

Z

 

The only thing I can think of that's down at the front of the car is the adaptive cruise control - which your car may or may not be fitted with - although I'd expect a failure there to throw an ABS message.

Can you check for any DTCs that might give a clue?

 

Oh I quite often get intermittent "ABS" & "DSC System Fault" messages, especially in the rain, which go away in their own, but these seem to have ceased since I solved my MAF issues. There are no current codes or messages, just no cruise control and a message saying "Cruise Control Unavailable". The front end was modified some considerable time before the cruise control died (See photo) so I don't think that's the cause. I just thought that if the garage were messing around with the radiator etc. they might have dislodged a connector or similar. That garage, which went bust some time ago, appears to have caused all sorts of other problems, which over time have steadily been solve​​​​​d, but this one is still outstanding.