Burned out buld indicator

[Rex Pedersen]

My burned out bulb indicator comes on from time to time when even though all
bulbs work. Seems to be when humidity is high. Figure it must be a bad
contact/ground or something like that. My question is: What bulbs are on
this indicator circuit? All of them? Indicator comes on whether lights are
off or on. Car in question is a 86 5KS wagon... (Now with working cargo
light!)
Rex Pedersen
Ludington, MI
86 5KS Wagon
87 5KSQ
90 V8Q
http://www.fega.com/rex/rexsaudi.htm