Hi again. Well for those who haven't read my previous post, I was having problems with my digital dash. The most common cause of this is said to be the power supply unit, that silver box just above the drivers right knee behind the lower dash panel. I followed the instructions ( thx Spot for the photo and step by step instruction; also see z31.com/repairs) and had an electrician solder the base of the pins. I installed the unit but the problem still exists. So I have a few more questions. The portion of my dash that is not lit is the speed graph, gas display,mpg area. When I start the car all the warning devices light up no problem and the turbo boost and compass are fine. Is there an actual bulb that could be burnt out? I've also read something about the pulse generator and how they often go bad, would that cause my dash not to be illuminated. I read that I should check the speedometer cable is turning from the transmission and to make sure it is turning the pulse generator. I understand how if was faulty,it wouldn't gauge your speed but what does that have to do with illuminating the dash? Also, what about that little button just left of your steering wheel that brightens your dash, could that be faulty and maybe im just stuck on dark? Any replies would be greatly appreciated and once again I would like to thank Spot for his relentless effort to help.

 

Zcar.com has a good search engine Yah I'm assuming it would be in the 84-89 section (sorry I don't hang in the Z31 forum much But just click on search the Archives and type his name, it should bring up all the posts he made.

 

Thx all, long time resolved. Have many xtra boxes..., give me a scream if u have problems. cya