Inspection Procedure

1. Check that the map disc is not deformed or cracked.
   Fig 1: Ensure Map Disc Is Not Cracked Or Deformed

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   No deformations or cracks on map disc. 

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 .
2. While driving the vehicle, compare the "Speed" indicator to the reading on the speedometer. Check if these readings are almost equal.
   Fig 2: Checking Vehicle Signal (Navigation Check Mode)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   The readings are almost equal. 

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

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