Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

CHECK MAP DISC
1. Check that the map disc is not deformed or cracked.
  
  Fig 1: Checking CD For Deformed Or Cracked
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  No deformations or cracks on map disc.
NG: REPLACE MAP DISC

OK: Go to next step
CHECK MAP DISPLAY
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
CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)
1. Enter the Navigation Check mode's Vehicle Sensors check (see NAVIGATION CHECK MODE ).
  
  Fig 2: Display Navigation Check Mode - Vehicle Sensors Check
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. While driving, compare the "SPEED" indicator to the reading on the speedometer. Check if these readings are almost equal.
  OK:
  
  The readings are almost equal.
NG: GO TO " SPEED SIGNAL CIRCUIT (NAVIGATION ECU - COMBINATION METER) " IN FLOWCHART

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