no tail lights , and no dash light ...what is the problem ..switched changed

no power to fuse block for tail lights

**TEST** EVERY FUSE YOU CAN FIND! .. Under hood and under dash... EVERY ONE OF THEM, don't care if it says it's for the ejection seat >TEST IT!.. Use a test light for testing with headlight switch ON... Next .. TEST park lamp circuit at the headlight switch with switch on...