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programming jumpers
light flash (+)/(-)
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 facto-
ry parking light relays.
NNOOTTEE::
For parking light circuits that draw 10 amps or more, the internal jumper must be switched to a (-) light
flash output. A standard automotive SPDT relay must be used on the H1/2 light flash output harness wire.
tach threshold on/off
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 vehicles. The vehicles affected include many newer Dodge/Chrysler/Plymouth
vehicles, such as the Neon, Cirrus, Stratus, Breeze and LH-based vehicles.
TO CHANGE
JUMPER
SETTINGS
LIGHT
FLASH
JUMPER
TACH
THRESHOLD
JUMPER
TACH THRESHOLD OFF (DEFAULT)
TACH THRESHOLD ON
(-) LIGHT FLASH OUTPUT
(+) LIGHT FLASH OUTPUT (DEFAULT)
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