Completing The Installation - Audiovox Prestige Platinum APS-255CH Manuel D'installation

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 red wire of the 3 pin
harness to terminal 86 of the optional relay added. Connect terminal 85 of the optional relay added to
chassis ground. 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 he remaining
terminal, 87, to chassis ground.
The Red/Black wire provides a pulse ground output when the unlock button of the transmitter is pressed a
second time after disarming. Because the vehicle you are working on requires a positive pulse from the
factory door lock switch to the factory door lock control relay, you will have to add a relay to invert the output
polarity of this wire. Connect the Red/Black wire to terminal 86 of the optional added relay. Connect
terminal 85 & 87 to a fuse + 12 volt source. Connect terminal 30 to the low current door unlock wire from the
factory door switch to the door unlock control relay.
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 resistors, or
for convenience, the AS 9159 Door Lock Interface. Refer to the AUDIOVOX Door Lock Wiring Supplement
and or the Audiovox fax back service for information on your particular vehicle for properly connecting to
these types of circuits.

COMPLETING THE INSTALLATION

NOTE: This unit has the ability to learn the dome light delay time, up to 60 seconds. If the vehicle has delay
interior lights, and you wish to avoid three chirp, defect zone, indication normally associated with this type
of interior light, we suggest you learn the interior light delay.
To learn the light delay, start with all doors closed:
(1) Use the transmitter to Lock / Unlock / Lock / Unlock / Lock / Unlock / Lock, the system.
The LED turns on solid to confirm the system entered the learn mode.
(2) Immediately open and close the door of the vehicle to initiate the dome delay.
The unit will monitor the door trigger input Positive, (Purple), and Negative, (Brown) when active.
When the dome light turns off, the unit will add 2 seconds then exit the learn mode.
(3) The LED will begin flashing the Armed indication indicating the unit has exited the learn mode and is
armed
Antenna Wire : Be sure to extend the thin black antenna wire to it's full length and cable tie into place
where it cannot be damaged. Avoid wrapping this wire around major, high current wire looms.
Adjusting the Shock Sensor : If used, the sensitivity of the pre - detect circuit is automatically set 30%
less sensitive than the full trigger circuit.
Using a small screwdriver, gently turn the adjustment screw fully counterclockwise. ( DO NOT over turn this
screw. Maximum rotation for this adjustment is 270° ). Close the hood and trunk lids, and arm the alarm.
Wait 6 seconds for the accessories trigger zone to stabilize, then firmly strike the rear bumper with the side
of a closed fist considering the amount of force required to break a window.
CAUTION : Never perform this test on the vehicle's glass, as you may break the window.
Turn the adjustment screw clockwise ( increasing sensitivity ) about ¼ turn and re - test. Repeat this
procedure until the alarm sounds. Ultimately, one firm strike to the rear bumper will cause the alarm to emit
pre - detect warning tones.
WARNING ! Setting the sensitivity too high can cause false alarms due to noise vibrations from passing
trucks and heavy equipment. To decrease sensitivity, turn the adjustment screw counter clock-
wise.
Wire Dressing : Always wrap the alarm wires in convoluted tubing, or with a spiral wrap of electrical tape.
Secure these looms along the routing using cable ties. This will ensure that the alarm wires are not dam-
aged by falling onto hot or sharp moving surfaces in the vehicle.
Operation : Take a few moments to check off the appropriate option boxes in the owner's manual, and to
fully explain the operation of the system to your customer.
Place the Valet Switch Tag and or the Remote Start Control Switch Tag on their respective switches and
point these out to the customer.
Page 6
128-6458A
6 of 16