Driving Test

During the driving test, diagnose the system by checking the difference of symptoms with each sensor ON or OFF.

Test pattern 1
Test method in which current position adjustment is not made according to GPS data.
- Remove the GPS antenna connector from the display & NAVI control unit. Drive the vehicle.
Before driving the vehicle, perform "ADJUST CURRENT LOCATION".

Test pattern 2
Test procedure in which map matching is not used.
- Before driving the vehicle, perform "ADJUST CURRENT LOCATION". With the ignition switch OFF and the map CD-ROM removed from the display & NAVI control unit, drive the vehicle. After driving the vehicle, reinstall the map CD-ROM. Compare the saved driving tracks for the vehicle's current location with roads on the map.

Example

-> Perform test pattern 1.


-> Perform test patterns 1 and 2.
- Compare the map and the saved driving tracks. The precision of the saved driving tracks is within several hundred meters.


-> Perform test patterns 1 and 2.
- Make adjustments by driving the vehicle over a known course (highway or other road where distances are clearly marked). Calibrate the distance against the known distance. Use the formula below.
Calibration value = Screen display distance/Actual distance