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© 2000 Directed Electronics, Inc. Vista, CA
Type E door locks are controlled by an electrically activated vacuum 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 or a DEI
451M
. The control wire can be found in either kick panel
and will show (+)12V 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. (See
Operation-
Settings Learn Routine™
section of this guide.)
This system usually requires a negative pulse to unlock, and cutting the wire to lock the door. In some vehicles,
these are reversed. It is found in late-model Nissan Sentras, some Nissan 240SX, and Nissan 300ZX 1992-up. It
is also found in some Mazda MPV's and some Mitsubishi's.
One relay (optional) is used to interface to this type of system as follows:
type F: one-wire system
type E: mercedes-benz and audi (1985 & newer)