Vehicle Position Mark Deviates Greatly

WARNING: This page is about a different car, the 2006 Lexus RX 400h. 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.
  OK: GPS mark is displayed.
NG: GO TO " GPS MARK IS NOT DISPLAYED " IN FLOW CHART

Fig 1: Display - GPS MARK
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP.
CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)
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 that these readings are almost equal.
  OK: The readings are almost equal.
NG: GO TO " SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND COMBINATION METER " IN FLOW CHART

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

OK: GO TO NEXT STEP.

CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)

Check that the display changes between ON and OFF according to the shift lever operation (P and R).

SHIFT LEVER POSITION

Shift Lever Position	Display
P	OFF
R	ON

Fig 3: Display - Vehicle Sensor Mode

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 FLOW CHART

OK: RETURN TO THE ORIGINAL INSPECTION FLOW BECAUSE THE CHECK RESULT IS NORMAL