can't see the picture. anyhow, i think it's the pulse duration too. something called "double unlock pulse" doesn't sound right...

Speedy300dturbo had it right. Here's that animated explanation I referenced before:

click on the button that says "interfacing Mercedes vacuum doorlock"

This is the electrical schematic of what you are trying to do with those two relays (from the Crutchfield solution):

__________________
joE
1993 300e-2.8 - gone now <sigh>
"Do not adjust your mind, it's reality that's malfunctioning"
http://banners.wunderground.com/bann...L/Key_West.gif