DOOR LOCKS
This alarm is equipped with on-board door locking relays. The following is a guide to using these on-board relays with most popular
door locking systems.
3-WIRE POSITIVE TRIGGER TYPE
• This type of door locking system is common on many GM’s and other makes. If you were to look at the door lock/unlock
switch in the driver’s door, it would have 3 wires coming out of it. These are a lock wire, an unlock wire and a co12v
wire.
• The lock and unlock wires will show a +12v positive pulse only while locking and unlocking the doors, otherwise they will
“float”.
3-WIRE NEGATITVE TRIGGER TYPE
• This type of door locking system is common on many vehicles. If you were to look at the door lock/unlock switch in the
driver’s door, it would have 3 wires coming out of it. These are a lock wire, an unlock wire and a constant (-) negative wire.
• The lock and unlock wires will show a (-) negative pulse only while locking and unlocking the doors, otherwise they will
“float”.
• As mentioned before, the connections are of supreme importance. If the connections are reversed by accident, severe damage
can occur to both the vehicle and the unit.
• If you were to look at the lock/unlock switch inside of the driver’s door, there would be 5 wires coming out of the switch. There
will be a constant 12v positive wire, 2 wires showing constant negative ground, and 2 wires which rest at negative ground but
invert polarity (show a positive pulse) when the lock/unlock switch is pressed.
For Example:
When the lock button is being pressed, one wire will show 12v positive (this is the lock wire), while the second wire is still
resting at negative ground. When the unlock button is being pressed, the polarity of the 2 wires will reverse.
• The wire that was still resting at negative ground will now show 12v positive. This is the unlock wire. The other wire will not
be resting at negative ground. When the unlock button is being pressed, the polarity of the 2 wires will reverse. The wire that
was still resting at negative ground will now show 12v positive. This is the unlock wire. The other wire will now be resting at
negative ground.
• It is not necessary to actually catch the wires inside the door. They can usually be found in the kick panels.
• It is of upmost importance to figure out which of the 2 reversing wires is the lock wire and which is the unlock wire.
A) The lock wire will be the one that shows 12v positive while the vehicle’s lock button is being pressed.
B) The unlock wire will be the one that shows 12v positive while the vehicle’s unlock button is being pressed.
ONCE YOU HAVE DETERMINED THIS, WE CAN START......
1) Cut the lock wire. At this time you will have 2 halves of the wire.
2) Press both the lock and unlock button. If you have cut the correct wire, the door locking system should not operate at all (the
doors should not lock or unlock).
3) Next we need to determine which side of the cut wire is coming from the door lock switch and which side is gong to the actual
motors. THIS IS VERY IMPORTANT. Once you have confirmed that this is truly a reversing polarity system and that you
have cut the correct lock wire, press and hold the lock button down. (Be sure that you are pressing down the lock button and not
the unlock.)
• The switch side will be the one that shows 12v positive when pressing the lock button (this will only be true if you have cut the
lock wire). Now connect the switch side of the cut lock wire to the white/black wire on the 6-pin door lock harness.
• The other side of the cut lock wire will be the motor side. Now connect the motor side of the cut lock wire to the green/black
wire on the 6-pin door lock harness.
4) Next cut the unlock wire. This will be the wire that shows 12v positive while pressing the unlock button.
Note: after cutting the unlock wire, the entire locking system should not operate in either direction.
5) Repeat the procedure of finding which side is the switch side and which side is the motor side.
• The switch side will be the one that shows 12v positive when pressing the unlock button (this will only be true if you have cut the
unlock wire.) Now connect the switch side of the cut unlock wire to the brown/black wire on the 6-pin door lock harness.
• The other side of the cut unlock wire will be the motor side. Now connect the motor side of the cut unlock wire to the blue/black
wire on the 6-pin door lock harness.
***THE DOOR LOCKING SYSTEM SHOULD NOW OPERATE NORMALLY***
5-WIRE REVERSING POLARITY TYPE
• Reversing polarity is often confused with the 3-wire positive trigger type system. This happens because both systems show
positive lock and unlock pulses. The difference is that in a reverse polarity system the lock and unlock wires rest at negative
ground. Because of things like this, this type of system can be intimidating. However, if the directions are followed very
carefully, then this system is not very difficult. Carefully observe that you do not accidentally reverse any of the connections
and, most importantly, USE FUSES!
• In this type of locking system, there are no factory relays. The actual lock/unlock switch directly operates the motors. The switches do
this by reversing the polarity of the motor wires.
• This system rests at negative ground, so if 12v positive is pulsed into the lock or unlock wire, there will be a short-circuit. This
is why the internal relays are necessary to mimic the actions of the actual lock/unlock switch. Both the lock and the unlock
wires will be cut (one wire at a time) and run through the internal relays which will momentarily interrupt the circuit. This
allows a positive pulse to safely operate the system.
GROUND
GROUND
FUSED (+)12v
DOOR
LOCK
ACTUATOR
RED/BLACK
PURPLE/BLACK
GREEN/BLACK
WHITE/BLACK
BLUE/BLACK
BROWN/BLACK
AFTERMARKET
ACTUATORS:
NOT USED
NOT USED
FUSED (+)12v
(+)12v
FACTORY
SWITCH
FACTORY
RELAYS
LOCK
UNLOCK
RED/BLACK
PURPLE/BLACK
GREEN/BLACK
WHITE/BLACK
BLUE/BLACK
BROWN/BLACK
NOT USED
NOT USED
FUSED (-)
(-)
FACTORY
SWITCH
FACTORY
RELAYS
LOCK
UNLOCK
RED/BLACK
PURPLE/BLACK
GREEN/BLACK
WHITE/BLACK
BLUE/BLACK
BROWN/BLACK
FUSED (+)12v
FACTORY
5-WIRE
SWITCH
FACTORY
DOOR LOCK
LOCK
UNLOCK
CUT
X
X
X
X
RED/BLACK
PURPLE/BLACK
GREEN/BLACK
WHITE/BLACK
BLUE/BLACK
BROWN/BLACK
INSTALLATION MANuAL
6
Warranty void if not installed by authorized dealer.
Specification and date are subject to change or withdrawal without notice.
© 2006 Micro Alarm, Inc. • DLR4HD_inst.051006.qx
D L R 4 H D
REPLACEMENT REMOTE PART NUMBER: #REMOTE-DLR4H
THIS IS ONLY A GUIDE.
The applications shown are general guide lines of possible applications. Vehicle
specifications may change. Always review the vehicle’s service manual when
performing an installation. Micro Alarm, Inc. does not assume any responsibility
for damage to property or persons which may occur due to incorrect applications.
Not responsible for typographical errors.
AUX
AUX
AUX
AUX
AUX
AUX
LOCK
Press and
release “lock”
buttonto lock
doors.
UNLOCK
Press and
release “unlock”
buttonto unlock
doors.
PANIC
Press and
release
“panic” for 2
sec. to flash the
parking light &
honk the horn.
SILENT LOCK
Press and
release
“panic” button
and then
press “lock”.
AUX
AUX
SILENT
UNLOCK
Press and
release
“panic” button
and then press
"unlock” button.
Press and hold
“unlock” button
before 60 sec.
to deactivate.
AUX 2
HIJACK
AUX 1
Press and hold
“aux” to activate
auxiliary output.
Press “unlock”
for 1 sec. after
disarm.
