Driving Test

1. Scroll the map screen to display the area to make correction. Press "ENTER" and select "CURRENT LOCATION CORRECTION".
2. Correct direction of the vehicle mark.
3. Perform the distance correction of the CONFIRMATION/ADJUSTMENT mode.
   NOTE: Normally, adjustment is not necessary because this system has automatic distance correction function. However, when a tire chain is fitted, adjustment in accordance with the tire diameter ratio must be made.
4. Are symptoms malfunctioning to the "EXAMPLE OF SYMPTOMS JUDGED NOT MALFUNCTION  " present after driving the vehicle?

YES or NO

1. YES : Limit of the location detection capacity of the navigation system.
2. NO : GO TO 2.

• Did any malfunction occur when the proper test in the following test patterns is performed?
• Test pattern

Driving test finds the difference between the symptoms monitored with and without each sensor.

• Test pattern 1: Test method with no GPS location correction

  Disconnect GPS antenna connector (GT5) connected to the NAVI control unit. Accurately adjust the current location and the direction, then drive the vehicle.

• Test pattern 2: Test method with no map-matching

Accurately adjust the current location and the direction. Eject the map DVD-ROM from the NAVI control unit with ignition switch turned to OFF, then drive the vehicle. After driving, insert the map DVD-ROM back in the unit, display the track of the vehicle on the map screen and compare it with the actual road configuration.

• Sample tests

• < To determine if the current-location mark skips at the same position, if so, whether it is caused by map-matching or by GPS >

  Perform test pattern 1.

• < To determine if the pattern of streets displayed is correct or not >

  Perform test pattern 1 & 2.

  Compare the track of the vehicle on the map screen and the actual road configuration. For fairly accurate tracking, plotting shall be made every several hundred meters.

• < When the distance is adjusted accurately >

  Perform test pattern 1 & 2.

  Drive on a road of which distance is accurately known (by utilizing distance posts on a highway). Calculate the rate of change (increased/decreased) of the distance by comparing with the actual distance.

  Correction = A/B

  A: Distance shown on the screen

  B: Actual distance

YES or NO

1. YES :
   • If adjustment is insufficient, perform adjustment again.
   • If any error is found in the map, please let us know.
   • Replace NAVI control unit.
2. NO : Limit of the location detection capacity of the navigation system.