GlowShift 2" Tachometer Gauge - Manual

Tinted Series Tachometer
For Product Numbers: GS-T10
Wire Harness Color Code
Red: 12v Ignition Source (+) (switched) Orange: 12v Switched Headlamp Source (+) (optional)
Black: Vehicle Ground ( - ) Green: Connects to Vehicle’s Tachometer Signal Wire
1. Disconnect the negative battery cable.
Connecting the Power Wire Harness
2. Connect the green wire to the vehicle’s tachometer signal wire
or negative side of the coil. You must consult your manual to
ensure proper location. If connecting to an aftermarket ignition
system, be sure to follow the manufacturer’s instructions for
connecting a tachometer. Please consult a service manual or
mechanic before installing.
 Tachometer Test Wire: Some vehicles may have a
tachometer test wire to obtain a tachometer signal from.
Consult your repair manual or licensed mechanic to
confirm the location of this wire.
 Tachometer Adapter: It may be necessary to install a
Tachometer Adapter if you have a multiple coil system.
You can purchase a Tachometer Adapter from local auto
parts store.
 Tachometer Filter: It may be necessary to use a
Tachometer Filter if you vehicle has either a points style
or HEI ignition system. You can purchase a Tachometer
Filter from www.GlowShift.com
 Note: Be sure to use a grommet when routing wires
through the firewall to protect them from stripping and
damage.
3. Using automotive grade wiring (18 gauge); connect the red
wire to a positive 12 volt ignition (switched) source. It may be
connected to the fuse panel, an accessory wire, or any positive 12
volt source that turns on and off with the ignition.
4. Using automotive grade wiring (18 gauge); connect the black
wire to any good (unpainted) ground connection. You may also
route a wire directly to the negative side of the vehicle’s battery.
5. The Night Time Dimming feature decreases the brightness of the
gauge face by 30%. Connect the orange wire to the 12 volt positive
headlamp source. This allows the mode to be activated when the
headlights come on. This step is optional and will not affect operation
of the gauge if it is omitted.
 Note: Do not connect the orange wire to a dimmer wheel.
This will cause the gauge lighting to flicker.
6. Use the Cylinder Selection Switch on the back of the gauge to set
the number of engine cylinders on the tachometer to match that of your
vehicle. Do this before applying power to the gauge.
 If you need to change the cylinder selection, you must remove
power from the gauge, make your selection, and then reapply
power to the gauge for proper calibration.
Switch # Cylinders
0 10
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
7. Reconnect the negative battery cable.