Symptom Chart

Symptom	Possible Cause	Action
Lost satellite reception	Vehicle not in clear view of satellites GPS antenna circuit: short circuit to ground, short circuit to power, high resistance GPS antenna failure Navigation module failure Antenna is disconnected	NOTE: Time taken to lock on to satellites can be several minutes after ignition status is switched to 'ON' It is possible for the GPS antenna to lose satellite reception in hilly or tree-lined areas, built-up areas, in multi-storey car parks, tunnels or during heavy rain or thunderstorms. Check for DTCs indicating an antenna or navigation module fault.
Touch screen display (TSD) displays a high temperature message and shuts down	MOST fibre optic transceiver (FOT) over-temperature FOT temperature greater than 85°C	Check MOST FOT temperature in TSD diagnostics, vehicle signals. Once the temperature is reduced the system will resume normal operation. If the system does not resume normal operation, check for DTCs indicating an information and entertainment system fault.
Touch screen display (TSD) displays a low temperature message and shuts down	TSD too cold TSD temperature less than -25°C	Check MOST FOT temperature in TSD diagnostics, vehicle signals. Once the temperature is increased the system will resume normal operation. If the system does not resume normal operation, check for DTCs indicating an information and entertainment system fault.
Blank screen	Temperature in passenger compartment too low Condensation in passenger compartment Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test A .
No display on navigation screen (screen does not change)	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test B .
Hard switches do not respond	Component failure Switch failure	GO to Pinpoint Test C .
Radio screen will not display (Range Rover Only)	Component failure Switch failure	GO to Pinpoint Test D .
CD screen will not display (Range Rover Only)	Component failure Switch failure	GO to Pinpoint Test E .
TV/DVD screen will not display	Component failure Switch failure	GO to Pinpoint Test F .
AUX. screen will not display (Range Rover Only)	Component failure Switch failure	GO to Pinpoint Test G .
Display screen will not switch to low light	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test H .
Noise interferes on each screen and the colors are abnormal	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test I .
Disturbance on screen (synchronization abnormal)	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test J .
Screen color is abnormal	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test K .
Map disc will not insert/eject	Electrical harness open/short circuit, dis-connected Component failure Map disc failure	GO to Pinpoint Test L .
Touch switches do not respond	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test M .
Considerable deviation between displayed vehicle position and actual position	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test N .
GPS mark does not appear	Electrical harness open/short circuit, dis-connected Component failure No reception from satellite	GO to Pinpoint Test O .
No sound	Electrical harness open/short circuit, dis-connected Component failure Incorrect system settings	GO to Pinpoint Test P .
No voice recognition	Electrical harness open/short circuit, dis-connected Component failure No map disc inserted	GO to Pinpoint Test Q .
Vehicle current position mark turns on its own	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test R .
Vehicle position does not update	Map disc contaminated/damaged Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test S .
Route calculations cannot be performed	Map disc contaminated/damaged Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test T .
Map display is incomplete	Map disc contaminated/damaged Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test U .
Vehicle position mark moves in the opposite direction to the direction of travel	Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test V .
Cannot make or receive calls with the bluetooth telephone - cannot connect to the vehicle	Incompatible bluetooth telephone Incorrect initial connection settings Electrical harness open/short circuit, dis-connected Component failure	GO to Pinpoint Test W. .
'NAVIGATION NOT INSTALLED' message displayed	No power or ground to navigation module Private CAN failure	Refer to the electrical circuit diagrams and check navigation module power and grounds, and private CAN circuit
'NO NAVIGATION AVAILABLE' message displayed	GVIF fault Electrical harness short, open circuit	Carry out GVIF checks, refer to the electrical circuit diagrams and check electrical harness for short, open circuit