Engine management light

Hello

Check the light board as it could be shorted within or loose

lower a posts one each side ie. kick panel trim.

run the fault codes to look for injector problems
check injectors for bad tips
check fuel pressure to injectors
check for vacuum leaks with the foot on the brake ( booster leaks --check by applying the hand brake with the foot off the brake and if the problem is not there it is the brake booster faulty)

google jaguar error codes full list and explanation

Sorry but no such code appears in the general OBDII codes and neither in the jaguar codes ,now this code is the nearest i can come up with ,try disconnecting the battery and joining the leads together and leaving for 20 mins then see what happens
P0385 Crankshaft Position Sensor B -Circuit Malfunction

P1388 Variable Cam Timing Overretarded (Bank #2)

Jaguar issued a Technical Service Bulletin related to this code ("Malfunction indicator lamp illuminated 3.0 l v6 false flagging of diagnostic trouble code P1383 or P1388"); reprogramming of the PCM should correct the problem

If your PCM already has been updated, then there is an issue with your variable valve timing system. It will need further diagnosis.

this code shows fuel rail pressure high. Could be many reasons for this from blocked or failing injectors to pressure regulation.Check all connections to electrical plugs and sockets to ensure no faulty signals. Only option after this is a good repair shop to check actions of injectors / regulators / pump.

Check the brake lights to see if they are working. The transmission shifter gets an electric signal from the brake light switch telling it the brakes are on and it's OK to shift. If the lights are not working check the fuse. If the fuse is fine then check the brake light switch. It's usually located somewhere around the brake pedal.

most are somewhere under the drivers side lower dash board.

You have to take it to a garage and have a diagnostic check That will give you a code telling you witch part is at fualt.When the fault has been rectified.Then the code has to be cleared eusing the diagnostic tool.Hope that was helpfull good luck.