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Type E: Electrically-activated vacuum systems
Type E door locks are controlled by an electrically activated vacuum pump. Some
Mercedes and Audis use the Type E system. The control wire can be found in either
kick panel and will show (+)12 volts when doors are unlocked and (-) ground
when doors are locked and when turning the key in the driver or passenger door.
To interface, see diagram below. The system must be programmed for 3.5 second
door lock pulses.
GREEN
BLUE
3
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