w107 grounding problem
gauges go crazy when turn signals are applied. have inst. cluster out but need wiring diagram or guidance to isolate which pin, etc. is ground. ..for example:.. each guage has a brass stud fixing it to cluster. assume this is not a live connector. guage also has brass rivets coming through circuit board. continuity check between these 2 is live. any ideas short of $380. for new guage cluster?