3 Wire Positive Switched Door Locks; 3 Wire Positive Switched Door Lock/Unlock Wiring Detail; 3 Wire Ground Switched 2 Step Door Locks - Audiovox Car Security System AX-900 Installation Manual

3 Wire Positive Switched Door Locks:

In this application, the Green wire of the door lock harness provides a + 12 volt pulse during the disarming
sequence, or pulsed 12 volt unlock output. Connect the Green wire to the low current 12 volt signal wire from the
factory door unlock switch to the factory door unlock relay.
The Blue wire of the door lock harness provides a + 12 volt pulse during the arming sequence, or pulsed 12 volt
lock output. Connect the Blue wire to the low current 12 volt signal wire from the factory door lock switch to the
factory door lock relay. See Below For Wiring Detail.

3 Wire Positive Switched Door Lock/Unlock Wiring Detail

3 Wire Ground Switched 2 Step Door Locks:

In this application, the Green wire provides a ground pulse during arming, or the pulsed ground lock output.
Connect the green wire to the wire that provides a low current ground signal from the factory door lock switch to
the factory door lock control relay.
The Blue wire provides the first ground pulse during disarming, or the drivers door pulsed ground unlock output.
Connect this wire to the drivers door unlock relay that requires a low current ground signal to unlock only the
drivers door. 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 blue 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 constant + 12 volt source. Most vehicles
door lock/unlock motor legs rest at ground, and switch +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 terminal, 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 the remaining terminal, 87, to chassis ground.
The Blue/Red wire provides a pulse ground output when the unlock button of the transmitter is pressed a second
time after disarming. Connect the Blue/Red wire to the wire that provides a low current ground signal from the
17
128-6996A
17 of 28