First off, I did a search, read through some threads but didn't find this particular issue. I have an 01 Sport that I'm having a power door lock problem on. I can unlock all of the doors from both sides, but can't lock them with the drivers side master switch. I can lock them from the passengers side switch or with the remote. Everything else works, windows, mirrors, etc. I bought another used switch that was supposed to be good and swapped them out. It won't lock or unlock anything. The windows and mirror switches work, but not the lock. I'm thinking this may be just a switch problem but don't know that for sure. I was going to just buy a new Dorman but they're close to $90 at Rock Auto and I hate to buy a new switch only for it not to fix it. It makes no sense my switch will unlock but not lock. Anyone else have this particular problem?