GlowShift Adjustable Shift Light - Manual

Adjustable Shift Light Installation Instructions
Wire Color Code
Red: 12v Ignition Source (+) (switched) Green: Connects to Vehicle’s Tachometer Source
Black: Vehicle Ground (-)
1. Disconnect the negative battery cable.
Connecting the Power Wire Harness
2. Connect the green wire to the vehicle’s tachometer source
wire. You must consult your service manual to ensure where the
proper source is located. 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 port or wire to obtain a tach signal
from.

Tachometer Adapter: It is required that you 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 a points style
ignition system. You can purchase a Tachometer Filter
from www.GlowShift.com or an Authorized Dealer.
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. For 8 cylinder vehicles you do not need to do anything with
either the orange and brown wires. For 6 cylinder vehicles, cut
the brown wire loop only. For 4 cylinder vehicles cut both the
orange and the brown wire loops.

If you have to cut any of the wires, be sure to cover the
end of each cut with electrical tape.
6. Set the adjustable knob on the back of the shift light to change
the RPM setting.
7 Reconnect the negative battery cable.

Be sure all of your wiring is correct to ensure proper
shift light operation.