7
Step 5: Optional Accessory Connections
(Continued)
Mercedes Door Lock Activation
Door Lock
Switch
87
87A
85
86
30
87
87A
85
86
30
To +12 Volts
(B)
Door Lock
Compressor
Cut
Green Wire
Black Wire: Unlock
Lock
Unlock
B+
Unlock
Lock
+
+
+
--
Red Wire: Lock
Orange Wire: No Connection
3 Pin
Black
Plug
Newly Installed Power Door Lock Motors
87
87A
85
86
30
87
87A
85
86
30
To +12 Volts
(B)
To Ground
To Newly
Installed Power
Door Lock Motors
Black Wire: Unlock
Red Wire: Lock
Orange Wire: No Connection
White Wire
Brown Wire
Green Wire: Lock
Blue Wire: Unlock
Violet Wire
3 Pin
Black
Plug
ALA-DL1
Relay Pack
One Wire Multiplexing Door Locking Systems
Some vehicle’s (Chrysler, Mazda and Ford Probe and others) use one wire to lock and unlock the doors.
Example: When the door lock controller sees a signal thru a resistor it will unlock. If a signal is received
without a resistor the doors will lock. Some use 2 resistors. One for lock and one for unlock. We have
developed patented plug-in fuse resistors for this application. Simply remove the fuse from our door lock
module and replace with correct resistor value fuses that matches the vehicles door lock switch.
ALA-DL1 Wiring:
1. Connect both the green (lock) and the blue (unlock) wires to the vehicles one wire lock/unlock wire.
2. Connect our violet polarity input wire to +12v or to ground. To match vehicles door lock polarity
3. The white and the brown wires will not be used.
