Peugeot J7 1976 - Diesel Engine Stop Solenoid on this - Classic Campervan 

On a J7?

@@ThwaitesFabrication yes

@@acsadyt1 in most cases from my experience it is the switch on the column with dirty contacts or worn and or the hazard switches fall apart (best to replace with new or remove and strip and clean) as all the indicators run through them. I would try putting power to each indicator separately so that shows you if it has a bad earth/bulb or the unit in each case then work from there. Depending on your abilities you could use the continuity setting on your multimeter to see if you get continuity through the switch to the left and right side when moved.

@@ThwaitesFabrication Hi yes, the indicator stalk is brand new. I checked the Continuity from the fuse board to the indicator stalk connection. That is OK. But the relay didn't get power

Fuse?