Suspension faults

I have caused a CATS suspension faults on my 2001 S-type 4.0 Jaguar. It has 57,000 miles on it and I was trying to find why my left strut was rattling, so I was inspecting the thing for worn rubber and removed the connection from the car to the strut. As usual, I was doing more than one thing and was also changing and flushing the engine oil. I forgot to reconnect the strut before I cranked the car. It promptly gave a CATS System Failure on the message console. I shut the car off, replaced the connection, several times, and I am still getting the message. I can use the 'clear' key to remove the message, but it returns when I start the car the next time. Does this mean the fault still exists? Where is the fault/ how can I tell where it is? It does not generate a ODBII code. How do I reset the system? The 'reset' key on the message board does not appear to do it. Thanks for the time.