Navigation System (For Radio And Display Type) Vehicle Position Mark Deviates Greatly


INSPECTION PROCEDURE

CHECK CABIN

CHECK SURROUNDINGS

CHECK GPS INFORMATION (OPERATION CHECK)

CHECK VEHICLE SIGNAL (OPERATION CHECK)

NAVIGATION SYSTEM (for Radio and Display Type) - Vehicle Position Mark Deviates Greatly


INSPECTION PROCEDURE

1.CHECK CABIN

  1. Check the cabin for any object that might interrupt radio reception or additional devices which use radio waves on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears.

    HINT:
    The GPS uses extremely weak radio waves originating from satellites. If the signal is interrupted by obstructions or other radio waves, the GPS may not be able to properly receive the signal.
    OK:
    The GPS mark appears.


NG
Go to step 2
OK

NORMAL OPERATION

2.CHECK SURROUNDINGS


  1. Check if the vehicle is in a location where GPS signal reception is poor. If the vehicle is in such a place, relocate the vehicle and check if the GPS mark reappears.

    HINT:
    The GPS uses 24 satellites in 6 orbits. At any point in time, 4 satellites should be able to pinpoint your vehicle. However, GPS signals may not reach the vehicle due to influence from the surroundings, vehicle direction and time. For examples, see the following illustration.

    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Navigation Multi Info Display.Navigation System (For Radio And Display Type).Navigation System (For Radio And Display Type) Vehicle Position Mark Deviates Greatly

    OK:
    The GPS mark is displayed.

    Text in Illustration
    *a
    		Example
    		*b
    		In a tunnel
    *c
    		In a building
    		*d
    		Under an overpass
    *e
    		On a forest or tree-lined path
    		*f
    		Between tall buildings
    *g
    		Under a cliff or overhang
    		-
    		-


NG
Go to step 3
OK

SYSTEM RETURNS TO NORMAL

3.CHECK GPS INFORMATION (OPERATION CHECK)
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Enter the "System Sensors Check" screen. Refer to Check System Sensors in Operation Check (LandCruiser RM000003SKF0LFX.html).

  1. Check how many of the following codes appear in the "Reception number" column.

    HINT:
    T or P appears.
    OK:
    At least 3 codes appear.


NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM000005MAG00FX.html)
OK


4.CHECK VEHICLE SIGNAL (OPERATION CHECK)

  1. Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check (LandCruiser RM000003SKF0LFX.html).



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Check that the display changes between ON and OFF according to the shift lever operation.

    OK
    Shift Lever Position
    		Display
    Except R
    		OFF
    R
    		ON
    HINT:
    The display is updated once per second. It is normal for the display to lag behind the actual switch operation.


NG
GO TO "REVERSE SIGNAL DOES NOT CHANGE IN VEHICLE SIGNAL CHECK MODE" IN PROBLEM SYMPTOMS TABLE
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM000005MAG00FX.html)