Inspection Procedure

1. Check that the map disc is not deformed or cracked.

   OK: No deformations or cracks on map disc. 

Fig 1: Checking Disc For Deformed Or Cracked
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE MAP DISC 

OK: Go to Next Step 

1. Check if a touch scroll can be performed on the map display.

   OK: Touch scroll can be performed. 

NG:  PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

OK: Go to Next Step 

1. Enter the "Navigation Check Mode" (Vehicle Sensors) (See NAVIGATION CHECK MODE  ).
2. While driving the vehicle, compare the "Speed" indicator to the reading on the speedometer. Check if these readings are almost equal.

   OK: The readings are almost equal. 

Fig 2: Screen Display - Vehicle Sensors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG:  GO TO VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND COMBINATION METER 

OK:  PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE