Internal central lock switch stopped working.on 97' A6

[Ottar Tverberg]

Hello

The internal central lock switch (in drivers door) has stopped working.
Normally will lock and unlock all doors during driving or standstill.
I don't now when it stopped working, but I recently had to renew the
battery.
Was hoping that some sort of resetting can be done, but the instruction
booklet doesn't tell anything about this.

The diagrams in my workshop book don’t show the extra switch either. But I
guess it's got two connectors like the door lock switches.

Is it easy to pop out the switch to check function?

The car isn't equipped with original alarm / infrared remote control. A DEFA
alarm with remote control is however installed. Normal operation of door
locks are therefore done by engaging / disengaging the alarm. The internal
lock switch has worked for several years before with this setup.

Regards
Ottar T