Jim -
Pull the connector off the back and check each cavity for power - both should show 12V to ground; if not, pull the inboard bulkhead connector on the engine side of the fuse block and check the mating terminals for corrosion, bent prongs, etc.
Pull the connector off the back and check each cavity for power - both should show 12V to ground; if not, pull the inboard bulkhead connector on the engine side of the fuse block and check the mating terminals for corrosion, bent prongs, etc.