The parking/side/tail lights don't come on. The fuses, bulbs, and relay are OK. I initially changed all of these components.

I can turn the lights on by by-passing the relay (Remove relay and short circuit with a piece of wire). This suggests that perhaps there is a problem with the light switch or possibly the Front Control Module.

Any other things I should check. I don't want to go out and buy parts only to find that it is not the problem (especially the FCM).

Thanks
Dave