Cobra Electronics 4400 - Manual (Page 21)

Nothing Comes Close to a Cobra ®
Maintenance : Troubleshooting
21
Display does
not power up.
Power switch is turned off. Turn the unit on with the Power button.
Fuse in 12V power cord is blown.
Check for green LED on 12v power plug. Unscrew the fuse holder,
inspect the fuse and replace it if blown.
No voltage is present at the vehicle power port.
Troubleshoot vehicle wiring. NOTE for some power points,
ignition key must be at RUN position for the point to be energized.
GPS indicator will
not turn green.
GPS antenna cannot “see” the sky.
Move vehicle to open area and make sure the GPS antenna
has a clear view of the sky.
System does not reflect
movement while driving.
GPS is not working properly.
Is GPS signal indicator green? If yes, go to next step.
If no, go to “GPS indicator will not turn green” step.
Vehicle motion is not
evident or the Map is blank.
Geographic area is not fully mapped.
Drive to a main road. If the map shows the road, the system
is working properly, but the area is not fully mapped.
Map is zoomed in too far. Zoom out.
TROUBLESHOOTING
P R O B L E M P O S S I B L E C A U S E ( S ) S O L U T I O N ( S )