4. Turn the vehicle on.
If the vehicle can be run, start it. If it cannot be run, turn the key to the Run position. This is the
position it is normally in when the vehicle is being driven.
5. Plug the ScanGauge plug into the OBDII socket.
The ScanGauge derives all the power it needs from the OBDII connector. No other connections are
needed for its operation.
Wait for the ScanGauge to connect. When the ScanGauge is first connected, it attempts to
communicate with the vehicle. Communications can be established with the key in the Run position,
even if the engine is not actually running. It could take up to 60 seconds for the connection to be
made after the unit is plugged in with the key in the Run position.
While establishing communications, the screen will display:
Connecting Screen Home Screen
Up to 60
seconds
If it does not stop saying “Connecting...” or the screen goes blank after 60
seconds, refer to Troubleshooting on page 34.
The TRIP and MORE buttons can be used even if a connection is not established. If communication
with the vehicle ECU is not completed within about 75 seconds, the ScanGauge goes to sleep. It will
continue to attempt to connect when the vehicle is restarted or tapped twice. When communication
has been established, the display will change back to the gauge screen you were on, or to the
Home Screen if it was on another page.
6. If this is the first time it has been used on this vehicle, follow the
procedures outlined in Setting Up Your ScanGauge, on page 12.
Overview 9
