89 C1500. Dash idiot lights

[ukdavid]

When the ignition is on, before starting, only the "Check gages" and the battery warning lights are lit up. Surely this is wrong. Shouldn't the oil warning light (by the 0 on my oil pressure gage) light up too? What else is not lighting up? When I first got this truck, I took the instrument panel to a shop who checked it out and either said everything was working or fixed things so that everything ws working. I cannot remember now if, at that time, other warning lights lit up. Anyone know how to troubleshoot? Thanks, David