GlowShift Digital Series Celsius Transmission Temperature Gauge User Manual
GlowShift For the car
 
Digital Series Celsius Transmission Temperature Gauge
For Product Numbers: GS-BD12_Celsius and GS-RD12_Celsius
 
 
Wire Color Code
Red: 12v Ignition Source (+) (switched)
Orange: 12v Switched Headlamp Source (+) (optional)
Black: Vehicle Ground ( - )
Green:
Connects to the White Wire on the Temperature Sensor
 
1. Disconnect the vehicle's negative battery cable. 
 
Temperature Sensor Installation 
2. There are two common types of transmission temperature sensor 
installations: 
Transmission Test Port: Most vehicle transmissions come 
equipped with a test port location. This may be located on either 
the driver or passenger sides of the transmission near the 
transmission oil pan. The bolt in this port should be removed 
and the sensor fitted in its place. Confirm port and thread size 
with your vehicle dealer or owner’s manual. A test port 
extender will be required when installing this sensor into Dodge 
Ram model years 94-07.5 
Stock Sensor Location: Use a T-fitting (optional) to T off your 
stock sensor location. This will allow you to keep your stock 
sensor installed, while also allowing you to install an 
aftermarket temperature sensor. 
Note: Some vehicles may require additional adapters to complete the 
installation of this sensor. 
 
Connecting the Power Wire Harness 
3. To make the wiring of your gauges easier you can purchase an 
expandable circuit. This component easily fits into your fuse panel and 
provides an additional fused power wire for accessories such as gauges. 
The expandable circuit is available for purchase at www.GlowShift.com. 
 
4. Connect the green wire from the gauge to the white wire of the 
transmission temperature sensor. Then, connect the black wire of the 
transmission temperature sensor to any good (unpainted) ground 
connection. 
 
 
5. 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. 
 
6. 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. 
 
7. 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. 
 
8. Reconnect the vehicle's negative battery cable.