I noticed a couple of days ago that the drivers side headlamp doesn't light up on dipped beam on my 94 Hijet van. However, when switched to full beam both drivers and passenger side light up no problem. Obviously my first move (After checking the fuses, which were fine) was to check for bulb malfunction, but the screws holding the light cover on the inside of the van are corroded to the point where it looks like it will be virtually impossible to access the bulb in the conventional way. It then occurred to me - is there not just one bulb inside the housing which handles both dipped and main beam? Being pretty new to Hijets and auto maintenance in general I have no idea, but the owners manual seemed to give that impression.
So I guess what I'm trying to find out is -
Are there separate filaments/bulbs, hence do I have simply a duff bulb, and if so, how the heck am I going to get to it to replace it? And if not, presumably I have some kind of wiring problem - How might I go about diagnosing and fixing this?
Any help at all would be really greatly appreciated