94 E320 locks, alarm going off

My wife's 94 E320 has a problem where if you are just driving down the road the doors will automatically lock and in a few seconds the horn alarm system
will go off. Also if you close the truck anything other than gingerly both doors will lock which can be a problem if the keys are in the car. Any ideas? TIA David
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
i think the control box is on the pass kick plate unove box. unplug it!
the case, minus a few cans!
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.