= Installation Test Troubleshooting If an installation test result does not indicate success, please check the common causes for the failure reason below: == Communication Failure Common causes of a Communication Failure include: __The device is **not properly powered**__ Check that you still have a good voltage reading at the device, and the voltage is NOT lower than the voltage at the vehicle's battery. The device must be powered BEFORE starting the test. __The device is **installed in an obstructed manner** __ Move the device away from large metal obstructions and other antennas. __The device is **in an area of poor cell coverage**__ Move the vehicle to an area of stronger cell signal, or try to run the installation test again. Because the test is instantaneous, it may take two or three tries to succeed in areas of poor coverage. == GPS Failure Common causes of a GPS Failure include: __The **communication test is failing**__ The GPS test will not succeed unless communication with the device has been established. __The device is **installed under a metal obstruction**__ Move the device so it is not installed underneath any metal objects like the radio, and has a direct line of sight to the sky. __The device is **installed at the wrong orientation**__ Check that the device is installed with the label side DOWN. __The device has **not been powered long enough** to get a GPS lock__ Try waiting the full countdown period before starting the test. __The vehicle has an **obstructed view of the sky**__ Move the vehicle so that it is outside and has a clear view of the sky (not under any metal garage roofs, etc).