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© 2005 Directed Electronics, Vista, CA—all rights reserved
This system is found in Mercedes-Benz and Audi 1985 and newer. The door locks are controlled by an electrically
activated vacuum pump. The control wire will show (+)12V when doors are unlocked and (-) ground when locked.
N
NO
OTTEE:: The system must be programmed for 3.5-second door lock pulses, and the violet jumper
between the #87 lock terminal and the #87 unlock terminal must be cut.
15A
CHASSIS
GROUND
TO ELECTRIC
VACUUM PUMP
VEHICLE FUSED
(+)12 VOLT CONSTANT
X
X
#87
#87a
#87a
#30
#30
WHITE/BLACK LOCK #87A NORMALLY CLOSED
GREEN/BLACK LOCK #30 COMMON (OUTPUT)
VIOLET/BLACK LOCK #87 NORMALLY OPEN (INPUT)
BROWN/BLACK UNLOCK #87A NORMALLY CLOSED
BLUE/BLACK UNLOCK #30 COMMON (OUTPUT)
VIOLET UNLOCK #87 NORMALLY OPEN (INPUT)
ON-BOARD
LOCK
RELAY
ON-BOARD
UNLOCK
RELAY
TRIGGER WIRE IN CAR
#87
CUT
X
X
CUT
H2/A
H2/B
H2/C
H2/D
H2/E
H2/F
H2/G
BLACK/WHITE DOMELIGHT SUPERVISION RELAY NORMALLY OPEN
ttyyppee EE:: eelleeccttrriiccaallllyy--aaccttiivvaatteedd vvaaccuuuum
m