I forget where the switch operates from, where the fault is. I assume it's in the rectangular "box" which contains the latch bolted to the bottom of the tailgate. I think that was what was faulty last time. I got a replacement from Silverlake breakers, a year of more ago, but now the door latch half way up under the number plate doesn't work. I got the tailgate open with torx bolts barely accessible from inside. Now I need to test the latch opening "switch", as layman i'm not sure how without getting an other new one.