Ford Probe Electrics, ECU, Warnings & Lights Problems

Hi dose anyone know much about the electrics on the probe Dont understand besideds the micro switch how the power gets to key hole light. There is a live up to the switch then it go's back down in a white wire to main connector with lot...

Dose anyone know if this has a relay or seperate fuse cant seem to get power to light? if so where are they located many thanks.