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Factory Lock Relay
Factory Unlock Relay
87a
87
30
85
86
87a
87
30
86
85
Lock
Unlock
To Red Lock Wire
Of Control Module
To Green Unlock Wire
Of Control Module
When Using DLVI
X
Cut and Splice
Per the Install
Guide Instruction
Blue
Green
To Red Lock Wire
Of Control Module
To Red/Black 2nd
Unlock Wire Of Control Module
When Using Relays
Factory Lock Relay
Factory Unlock Relay
87a
87
30
85
86
87a
87
30
85
86
To Fused + 12 Volts
To Fused + 12 Volts
(+)
From Vehicle
Chassis Ground
Drivers Door Motor
Passenger Door Motors
X
Cut Drivers Door
Unlock Motor Wire
To Green Unlock Wire
Of Control Module
If Factory Sw 12 Volts
Connect to Fused + 12 Volt Source.
If Factory switches Ground,
Connect To Ground.
87a
87
30
86
85
Fused + 12 Volt Source
Resistive Circuits, As Well As 4 Wire Polarity Reversal and
5 Wire Alternating 12 Volt Door Lock Control Circuits
These applications require the use of additional components which may include relays, fixed resistor, a
door lock interface, or a data module. You can search the vehicle @ www.Flash-It.com for vehicle specific
information, or contact our tech service line or web site for additional information.
3 Wire Positive Switched 2 Step Door Locks
Connect the DLVI as mentioned above, or use relays to invert the negative output pulse from the 3 pin
connector Red & Red/Black to control the lock & all door unlock functions by properly arranging the relay
contacts to pulse the vehicle's lock wire, and unlock wire respectively.
For the driver priority unlock, if the vehicle does not have a separate drivers door relay, one will have to
be added. Locate the drivers door unlock motor wire and cut it at a convenient location to allow wiring
of an optional relay.
Connect the door side of the cut wire to terminal 30 of the optional relay added.
Connect the vehicle side of the cut wire to terminal 87a of the optional relay added.
Connect the Green wire of the 3 pin harness to terminal 86 of the optional relay added.
Connect terminal 85 of the optional relay added to a fused + 12 Volt source.
Most vehicles door lock/unlock motor legs rest at ground, and 12 volts to the door lock/unlock
motor legs for operation, if this is the case in the vehicle you are working on, connect the remaining ter-
minal, 87, to a fused + 12 volt source.
In the rare instance that the vehicle door lock/unlock motor legs rest at + 12 volts and switches ground
to the door lock/unlock motors, connect he remaining terminal, 87, to chassis ground.