Jim Grant's Tech Tips
Blazer, Dash Lights
Q: I have a 91 Chevy Blazer and the
dash lights have gone out. This of course means that I cannot tell how
fast Im driving, fuel level , oil pressure etc.. I have checked
all the fuses and they are fine. My mechanic says that he is at a loss
of what the problem can be without tearing it apart and then hes
not sure if he will figure it out. Any suggestions on where to start looking
for this problem? Any and all help will be greatly appreciated.....Bill
is a switch on the dash of your vehicle that controls the brightness of
the dash lights that is called a panel & interior lamp control switch.
It is not uncommon for this switch to fail, which will result in complete
loss of the lights that illuminate the gauges and displays on the dash
of your vehicle. In fact, after checking the 5 amp fuse that provides
power for the dash lights that would be the next component I’d check.
Rarely, is it more involved than this switch if all the dash lights went
out at once.