Thanks to all who have replied providing helpful advice, details and information which I have now been able to sort out.
Problem was due to two separate problems. Firstly the ign round connector had partially separated but only enough to have disconnected the brown wire feed, all the other connections were still connected?
With the connector fully pushed together the front pilot light was illuminated, but still no rear light in either ign P1 or P2 positions. However, now I had brown wire power a quick wiggle of the brown wire connector feeding the power to the rear light produced an intermittent light. A gentle pull on the wire and it seperated from the bullet, see attached.
So with another bullet fitted everything is now working again.
May put a section of heat shrink sleeving over the ign round connector to stop it working apart again?
Thanks once again for all the help.
Andy