ATA problem 1995 e320 Car won't start

[fulltimefamily]

I am running through diagnostics with the very patient help of A. Dalton. We have covered testing fuses, battery, x27 x49 and are up to pulling the instrument cluster to check k38.
Before I did that I wanted to post what i discovered this morning about the ATA system in hopes that someone my have experience that would help me.
The ATA led would not arm from the driver's side door. Today i discovered that it will arm (start flashing on the dash) from the rear hatch and from the passenger side door. The drivers side door will not disarm the alarm. IE if i unlock the driver door and open the alarms go off. However if i then close the door and lock it the alarm is disabled. Both the passenger door and hatch will arm and disarm the system. I tried cranking each time between arming and disarming by various doors but still no crank. At least I know the ATA led is powered now.