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© 2007 Directed Electronics
Type E: Electrically-activated vacuum systems
Type E door locks are controlled by an electrically activated vacu-
um pump. Some Mercedes and Audis use a Type D system. Test by
locking doors from the passenger key cylinder. If all the doors
lock, the vehicle's door lock system can be controlled with just
two relays (optional). The control wire can be found in either kick
panel and will show (+)12 volt when doors are unlocked and (-)
ground when doors are locked.
To interface, see diagram below. The system must be programmed
for 3.5 second door lock pulses.
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