I ve been getting the DSC NOT AVAILABLE message for a while now, but it happens once in a month so I dont care about it that much. But I do curious about why it happens and whats wrong actually? Anyone have the same issue?

 

It means the DSC computer detects and error and shuts off. The source could be quite a number of things - speed sensors on the wheels. Yaw rate sensor. Bad cable connection. Bad DSC module. Even bad wheel alignment may cause the erros. The DSC module reads a whole bunch of data and analyzes it in real time. If it detects inconsistencies in any of the data it disaplay this error. For example yaw rate sensor says your car is turning left, but wheel speed and turning wheel position dont agree.

If you can pull the compiter codes off it may give you a clue where to look for the problem.

The problem codes are stored in the computer even if the message is not on display. It is tricky to diagnose if the problem is not reproducable.

 

Thanks ,I'll stop by at the dealer and make them check it. I hope its not a serious problem

 

This happened to me once as well.

 

As far as I know it is not serious in terms of "your engine will not blow up". There is always the reduced safety when the DSC is off. In terms of cost I have no idea, but as it is difficult to diagnose you could end up replacing a few things before getting to the right one.

It happened to my car as well, but then it dissapears, so I'm hesitant to go to the dealer in the current state. I'll wait till it starts comming up in a more consistent way.

If you have warranty left. Definitely go to the dealer.

 

Well I got my Jag in July and it happened only twice so right now everything looks fine but if it happens again I'll definitely take it to the dealer. My warranty is expired but I have an extended warranty from service shield. They dont cover anything tho lol.

 

I wish there was an easier way to read the DSC computer codes. Going to the dealer for just that is waste of 100 bucks.

There are some handy USB>OBD2 adapters, but the software can read only ECM data.

 

If you have an idependant Jag shop, they should be able to read codes.