Service manual said 158 for the rest of the dash lites.. Are 194's the same?? Looked the same at the parts store and were "clear blue"?? Were these an LED type??
158 Bulb; 14V, 0.24 amp, 3.36W
194 Bulb; 14V, 0.27 amp, 3.78W
Both bulbs are very similar, the 194 is
slighty briter. Also the 194 was used in other applications and available in various tints. Since U have the dash apart, change all of the bulbs it can save U time/frustration later. Also on the back of the dash, note the alumnum cast frame that the circuit board is attached to. The circuit board is fastened by multiple, small self tapping screws, snug these down for a good consistent ground connection.
Just my $0.02....