©
2002
Directed Electronics, Inc.
13
Type C: Reversing Polarity System
Use these instructions if the power door lock switch has four or five heavy-gauge wires. This type of
switch has two outputs that rest at (-) ground.
It is critical to identify the proper wires and locate the master switch to interface properly. Locate
wires that show voltage when the switch is moved to the lock or unlock position. Cut one of the
suspect wires and check operation of the locks from both switches. If one switch loses all operation
in both directions then you have cut one of the correct wires and the switch that is entirely dead is
the master switch. If both switches still operate in any way and one or more door motors have
stopped responding entirely, you have cut a motor lead. Reconnect it and continue to test for
another wire. Once both wires have been located and the master switch identified, cut both wires
and interface as described in the following paragraphs.
➤➤
HH22//CC WWHHIITTEE//BBLLAACCKK
- Once both door lock wires are located and cut, connect the
white/black wire to the master switch side of the lock wire. The master switch side will show
(+)12V when the master switch is operated to the lock position and (-) ground when the master
switch is in the middle position.
➤➤
HH22//DD GGRREEEENN//BBLLAACCKK
- Connect the green/black wire to the other side of the lock wire. This
is the motor side of the lock wire and it goes to the lock motor through the slave switch.
➤➤
HH22//EE VVIIOOLLEETT//BBLLAACCKK
- This wire must be connected to a constant (+)12 volts. The best
connection point for this wire is the constant (+)12V supply for the door lock switch*, or
directly to the positive (+) battery post with a fuse at the battery post.
NOTE: Except in GM cars with retained accessory power (RAP). In these vehicles, the (+)12V feed
to the door lock switches is turned off if the doors are closed for any length of time.
NOTE: Most direct-wired power lock systems require 20-30 amps of current to operate.
Connecting the violet/black wire to a poor source of voltage will keep the door locks from operating
properly.
IMPORTANT! If these wires are not connected properly, you will send (+)12V directly
to (-) ground, possibly damaging the alarm or the factory switch.
IMPORTANT! To interface with these systems, you must cut two switch leads.The relays
must duplicate the factory door lock switches’operation.The master switch will have one
or two ground inputs, one (+)12V input, and two switch outputs going directly to the slave
switch and through to the motors. These outputs rest at (-) ground. The lock or unlock
wire is switched to (+)12V, while the other wire is still grounded, thus completing the
circuit and powering the motor. This will disconnect the switch from the motor before
supplying the motor with (+)12V, avoiding sending (+)12V directly to (-) ground.
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