Pinpoint Test H : There is considerable deviation between the displayed vehicle position and the actual position.

The GPS no reception mark is displayed.

Is the GPS no reception mark displayed on the display screen? 

YES:  Refer to GPS no reception mark does not disappear diagnosis.

NO:  Go to step  2.

Check for symptom occurring in particular locations - parallel roads, elevated roads, loop roads, parking centers (buildings) etc.

Does the symptom occur in a particular location? 

YES:  In places where the vehicle position is hard to specify, the vehicle position may be matched incorrectly and result in position discrepancies. Additionally, a new road layout will mean the Gyro does not match the map position.

NO:  Proceed to the next step.

Check to see if distance calibration is being performed.

Is distance calibration being performed? 

YES:  Monitor the condition until distance calibration is complete (drive for over 10km/6.2 miles)

NO:  Go to step  4.

Check vehicle sensor display screen, from vehicle information diagnostics menu for the following: vehicle speed signal, REV: ON is indicated when the gear shift lever is in the REV position and gyro sensor input status are normal.

Are the vehicle speed signal, REV signal, and gyro sensor input status normal? 

YES:  Go to step  5.

NO:  Refer to the electrical circuit diagrams and check the integrity of the wiring harness and connectors, and CAN circuit, to the Touch Screen Display (TSD).

Check to see if new tires have recently been installed.

Have new tires been recently installed? 

YES:  From the navigation map screen, enter the navigation menu, select navigation setup then select calibration, press 'Distance' then drive the vehicle for 10 to 20 km. Operation will return to normal after performing distance calibration and driving the vehicle for 10 to 20 km.

NO:  Adjust the current location, and after the GPS no signal mark has disappeared, drive the vehicle for a while to monitor conditions.