back of the series 2, park lights, ones above the number plate fine, big amber ones fine, indicators also fine, but the two long white ones between plate lights and indicators don't go.

if I run 12v directly the master on the right at its terminals the light comes on as does the left side light slaved to it. so bulbs and local connections good, hard wires to see back up inside boot lid. I would assume issue to be local as the other lights are still working and if issue were further down wiring surely they would not.

 

Do you mean the Reverse lights?. Those only come ON when the Shifter is in R and ignition switch is in Start or Run position.