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ceiver will excite the transponder, which is located (but not visible) in the head of the ignition key. The key
transponder will then send a unique code back to the transceiver for evaluation. If the code matches a valid code
of the system, the vehicle will be allowed to start. Most of these transponder-based systems can be bypassed
using p p / / n n 5 5 5 5 5 5 U U . . Some may require additional parts from the vehicle manufacturer. Consult you dealer for the
applications. For most Ford PATS transponders, p p / / n n 5 5 5 5 5 5 F F can be used, except for the following vehicles, which
will require p p / / n n 5 5 5 5 5 5 U U : '97 and newer Mark VII, and 2000 and newer Taurus/Sable, Contour/Mystique and Focus.
p p l l u u g g - - i i n n L L E E D D a a n n d d v v a a l l e e t t / / p p r r o o g g r r a a m m s s w w i i t t c c h h
These plug into the module. The Status LED plugs into the small two-pin socket, while the Valet/Program Switch
should be plugged into the larger blue two-pin connector. The Status LED fits into a
DIA-41
p p r r o o g g r r a a m m m m e e r r i i n n t t e e r r f f a a c c e e , , 3 3 - - p p i i n n b b l l a a c c k k p p l l u u g g
The black 3-pin port is provided for personal computer programming of the unit. The unit can also be programmed
using the Bitwriter® (p p / / n n 9 9 9 9 8 8 T T ). When using the optional PC Interface module, or hand-held programmer, it is
possible to configure any and all of the programmable functions as well as lock the Transmitter/Receiver and
System Features Learn Routines so that unauthorized users cannot change the configuration or program trans-
mitters to the unit.
When the learn routines have previously been programmed using an optional hand-held system programmer
(p p / / n n 9 9 9 9 8 8 T T ) or PC Interface module, they may have been locked. Before proceeding with reprogramming
the learn routines, they must be unlocked with either the 998T or the PC Interface module - this cannot be done
manually with the Valet switch.
© 2005 Directed Electronics—all rights reserved
S S t t a a t t u u s s L L E E D D
/
-inch hole.
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V V a a l l e e t t / / P P r r o o g g r r a a m m S S w w i i t t c c h h
3 3 1 1
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