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 GPS MARK
1. Check that the GPS mark is displayed.
  
  Fig 1: Locating GPS Mark
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  GPS mark is displayed.
NG: GO TO " GPS MARK IS NOT DISPLAYED " IN FLOWCHART

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) Screen
  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 ASSEMBLY) " IN FLOWCHART

OK: Go to next step

CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)

Fig 3: Display Navigation Check Mode (Vehicle Sensors) Screen

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Move the shift lever to R or P.

SHIFT LEVER POSITION CHART

Shift Lever Position	Display
R	OFF
R	ON

HINT:

The display is updated once per second. It is normal for the display to lag behind the actual switch operation.

NG: GO TO " REVERSE SIGNAL CIRCUIT " IN FLOWCHART

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