My 1995 E320 sedan does not have a keyless entry. I use the driver key to lock the doors; the following situations happen:
- if I lock the driver door, all doors lock, security system arms, if I unlock at driver door everything works fine, but if I unlock at passenger door the alarm activates, horn sounds, lights flash.
- if I lock the passenger door, all doors except driver door lock, the security system does not arm.
One would think either door would completely lock, arm, and unlock. Any troubleshooting ideas?
- if I lock the driver door, all doors lock, security system arms, if I unlock at driver door everything works fine, but if I unlock at passenger door the alarm activates, horn sounds, lights flash.
- if I lock the passenger door, all doors except driver door lock, the security system does not arm.
One would think either door would completely lock, arm, and unlock. Any troubleshooting ideas?