why dont my lights work

[charjord]

only the front lights on my 1992 ford escort work back and dashbord ones dont come on have cheeked the fuse box and relays they ok what else could it be

[Skids]

When you say the front lights work, what do you mean?  Which lights?  Side lights, dipped beam, main beam, fog lights?

The left side side-lights, tail lights and number plate light are fed via fuse 8 and the right side side-lights, tail lights and dashboard lights are fed via fuse 3.  Check these.  If none of your side/tail/number plate/dashboard lights are working its more than likely that the actual switch is damaged or dirty.

Being a combined switch unit it would be fairly expensive to replace it from a Ford dealer.  It is possibly to clean the switch contacts if you're confident you can take the unit apart and re-assemble it without damaging it.  The best bet is find an auto-breakers who have one they can sell to you on the cheap.