On your van the computer under the hood in front of the fuse panel box is what controls the instrument panel and most of electronics of you caravan On my van I had to replace both the computer and the fuse control panel Remember that I was told by the Dealer that some of the van built with the gray ignition key has chip in the key and you have to take it to the dealer to be programmed. My van has the black key and once you replace the computer you don't have to have it programmed just replace and the computer and in your case the fuse control box also your van should start and run fine only in some cases has the instrument panel been an issue I was again lucky that i found what i needed in a junk yard.