i have checked fuses and replaced bulbs on back of cluster.
my illumination lights on my dash stopped working. Why? on 1998 Chevrolet Venture
is the dimmer switch ok and did you accidently turn it off
The dimmer switch works with the dome lights. I don't know what you mean by turning it off.
THERE SHOULD BE A DIMMER SWITCH FOR THE DASH LIGHTS SOMEWHERE ON THE DASH
oh yes im sorry. it is turned all the way up.
POSSIBLY A PWR ISSUE AT CLUSTER OR NOT PLUGGED IN ALL THE WAY