Greetings all,
The rear passenger side door on my '96 965 is not locking with all the others. This issue seems to have come on suddenly, and wouldn't be a problem except 1) I forget that it is unlocked and 2) my kids have woken the neighbors by setting off the alarm the last few mornings.

I've done a brief search here, and found some mention of electrical relays for '92s, but this doesn't quite seem to address the issue --because all other doors work off the main just fine-- even if 92s and 96s were similar.
Any thoughts? Do y'all think it is a relay issue, or more likely a mechanical sort of thing that --hopefully-- a bit of lubrication can resolve?

Thanks.