2000 Honda Accord Power Door Locks

Electrical problem
2000 Honda Accord 4 cyl Two Wheel Drive Automatic

My power door locks have been on the fritz for sometime now. When I use the interior switch or the remote, most of the doors don't lock. Sometimes, some doors will lock, but not others. There doesn't seem to be a pattern (ie. There isn't a door that ALWAYS works/doesn't work). There seems to be a better chance of them when the weather is cooler, heat seems to make the issue worse (they almost never lock/unlock when it's hot).