There is this number: (A:3236.2) that has come up on above my mileage with the engine light coming on my 2002 Jag X-type. Does anyone have an idea the code?

The numbers, are the trip meter,tell,s how many mile,s you have driven since it was reset,,it is not a code,

Agree ,with tom,,have it scanned for the engine light,

There are two milage trip meters, A & B - there is a switch to go from trip A and trip B and to reset them on the left side dash (North America). You have gone 3236.2 miles since the last reset. There should also be a button at the end of the blinker signal stalk to scroll through trip mileage, MPG instant and average, as well as average speed. The engine light could be one of many things including a loose gas cap. you need to take it to a auto parts store and have them scan for the code.