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© 1999 Directed Electronics, Inc. Vista, CA 29
internal programming jumpers
This jumper is used to determine the light flash output polarity. In the (+) position, the on-board relay is enabled
and the unit will output (+)12V on the WHITE wire, H1/2. In the (-) position, the on-board relay is disabled. The
WHITE wire, H1/2, will supply a 200mA (-) output suitable for driving factory parking light relays.
In most cases, this jumper can be left in the OFF position. Some new vehicles use less than 12 volts in their
ignition systems. The unit may have trouble learning the tach signal in these vehicles. Changing the jumper to
the ON setting changes the trigger threshold of the digital tach circuit so it will work properly with these vehi-
cles. The vehicles affected include many newer Dodge/Chrysler/Plymouth vehicles, such as the Neon, Cirrus,
Stratus, Breeze and LH-based vehicles.
digital tach threshold on/off
light flash jumper
(+) Light Flash Output
(-) Light Flash Output
Tach Threshold OFF
Tach Threshold ON