instrument cluster lamps not working remote dimmer is good fuses is good speed,oil,temp,volts,rpm, good but no light in the guages at night am i missing something ,,,,, little history i just changed my whole dash from my transam to my other 88 tpi its all the same and the computer is swaped with correct one . umm.. help please

 

Got a voltage meter? It's the only way you'll figure it out, just get a wiring diagram and follow where the power goes.