Using external warning indicators:
The yellow wire provides a ground trigger whenever the gauge is outside
its set limits. Low current indicators (less than 1/4 A) can be activated directly by
connecting their power wire to 12 volts and connecting their ground wire to the
yellow output wire. Many gauges can share the same indicator by connecting
their yellow warning wires together. In this way, when any one or more gauges
are outside their limits the warning indicator will be activated.
For higher current buzzers or lights, a relay will need to be used to switch
the indicator on. Dakota Digital’s RLY-1 30A relay may be used for this. One of
the coil wires should be connected to 12 volts and the other coil wire connected
to the yellow warning wire. When the gauge is outside its limits, the relay will
turn on. The relay contact wires can be used to switch the higher current.
WARNING!
CONNECTING A HIGH CURRENT
INDICATOR DIRECTLY TO THE
WARNING OUTPUT WILL DAMAGE
THE UNIT.
Wiring:
BLACK
-
connect to a good ground point in the vehicle.
RED
-
connect to an accessory terminal from your fuse block.
GRAY
connect to the transmission oil temperature sender.
BLUE
-
connect to the tail light circuit.
YELLOW
-
(optional) connect to warning indicator.
