© 2001 Directed Electronics, Inc. Vista, CA
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IMPORTANT!
The H2/A and H2/B wires are not required for wiring the door locks. For detailed
wiring instructions for these two wires, refer to the beginning of the Door Lock Harness (H2) Wire
Connection Guide section. Depending on the type of door lock system, there may be additional H2
harness wires that are not used for wiring the door locks.
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.
IMPORTANT!
To interface with Type C 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.
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 these wires and check opera-
tion 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
type C: reverse polarity systems
type B: negative-triggered, relay-driven systems
