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POWER
Connect the red wire from the main harness to accessory power from the ignition switch.
Never connect this to a battery charger alone. It needs to have a 12 volt battery connected to it. Battery chargers have
an unregulated voltage output that will cause the system to not operate properly.
GROUND
The black wire is the main ground for display system. A poor ground connection can cause improper or erratic operation.
STATUS AND WARNING INDICATORS
The right turn, left turn, and high beam indicators are activated by 12 volts at their respective hook-up wires. The right
turn signal wire is green, the left turn signal wire is orange, and the high beam wire is purple. These can be connected to the same
wires that the indicator lights would be connected to. The display system wire colors may not match the wire colors in your
electrical wire harness, consult a service manual to determine the color code and location of any wires you cannot locate.
The neutral, low oil, and check engine indicators are activated by ground at their respective hook-up wires. The check
engine wire is pink, the low oil wire is brown, and the neutral wire is white/green.
LOW VOLTAGE WARNING
When the voltage drops below 11 volts with the engine running, LO VLT will be displayed.
SECURITY SYSTEM INDICATOR
The security system indicator is a red light that is activated by 12 volts to the white/black wire. It will light up whether the
gauge is powered or not.
SHIFT LIGHT OUTPUT
The shift light output is a ground switch that turns on whenever the rpm exceeds the warning point. It can handle 0.25A,
equivalent to a 3W 12V bulb. Connect a low current indicator as follows: One wire from the light will connect to 12 volts, the other
wire will connect to the white/purple wire from the gauge.
If a large or high power light will be used, then a relay should be connected as follows: One of the coil wires should be
connected to 12 volts and the other coil wire will connect to the white/purple wire from the gauge. The relay contacts will be used
to switch power to the light. Any 12volt automotive relay can be used, such as Dakota Digital's RLY-1 30A relay.
TACHOMETER
The tachometer is used by connecting the yellow wire from the main harness to the negative side of the coil or to an
ignition module tach output. The tachometer is adjustable for 1 – 15 cylinder settings. The 1 cylinder setting is used for single-fire
ignition systems without a buffered tach output.
For tach signals integrated into a vehicle wiring harness, consult a service manual to determine the color code and
location of the tachometer signal. The bar displays rpm x1000. The starting bar range is 250 – 6500. If the rpm exceeds 6500 the
bar will automatically switch to a 500 – 13,000 bar readout and will remain there until the rpm drops below 2000.
For 2004+ Harley and 2003 V-Rod
The tachometer signal will come from the negative side of the ignition coil. Blue/Orange for the front cylinder, Yellow/Blue
for the rear cylinder, connect the tachometer input to only one of these two wires, set the tachometer for a 1 cyl signal, see
Tachometer Set-up for instructions.
TACHOMETER SETUP
The gauge can be set to read from 1-15 cylinder ignition signals. It can also be set to read either 12 volt tach signals or 5
volt tach signals found on some engine computers. The digital tachometer update rate can be adjusted between slow, mid, and
fast. The rpm warning/shift point can be adjusted from 2200 – 14800. The tachometer will read from 350 – 17,500 rpm. The bar
tach automatically switches between 6500 full scale and 13,000 full scale depending on the rpm.
Press and hold the switch while turning the key on. Release the switch. When "TACH" is displayed, press the switch
again and then release it. The message display should switch between "ENGINE", "WARN", "UPDATE" and "SIGNAL".
Engine cylinder setup
When "ENGINE" is displayed press and release the switch.
The current cylinder setting will be displayed.
Press and release the switch until the desired setting is displayed.
Press and hold the switch until "DONE" is displayed.
Rpm warning setup
When "WARN" is displayed press and release the switch.
The current warning point will be displayed.
Press and release the switch until the desired setting is displayed.
Press and hold the switch until "DONE" is displayed.
Display update setup
When "UPDATE" is displayed press and release the switch.
The update setting will be displayed. (1=slow, 2=mid, 3=fast)
Press and release the switch until the desired setting is displayed.
Press and hold the switch until "DONE" is displayed.
Tach signal setup
When "SIGNAL" is displayed press and release the switch.
The setting will be displayed. (NORMAL or LO VOLT)
Press and release the switch until the desired setting is displayed.
Press and hold the switch until "DONE" is displayed.
MAN#650087B
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