1990 seca light problems.

hey i got a problem with the lights on my 1990 corolla seca. my front park lights, rear tail lights, number plate lights and dash illumination lights do not work. have checked all globes, fuses and fusible links. have tried replacing dimmer switch and headlight switch. relays seem ok but i could be wrong as im not sure if there is one relay for all these lights or where it is. does any one have any suggestions or know where i can find good wiring diagrams on the web for this model?

For wiring diagrams try autozone.com
Did you check to see if power is going through the fuse(s)? Is there power at the switch?