UK Car Repair: my jaguar xj6 wont start, starter solenoid, jaguar xj6

Question
QUESTION: battery has full power - try to start car and all I here is click click click - and it is making the sound at the starter - what can i do to fix it - car has been sitting for one year - it ran great when parked..

ANSWER: What series is it (year)?

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QUESTION: it is a 1995 xj6

Answer
Presumably the battery is good and all warning lights come on. You need to start at the starter relay on the left inner wing. It is black plastic and has A positive brown and white wire which, when connected to the large white wire operates the starter solenoid, if you can join these together the starter should operate, if it does the problem is in the control system.