Navigation System Vehicle Position Mark Deviates Greatly

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Navigation. Lexus Is250, Is220D. Gse20 Ale20

INSPECTION PROCEDURE

CHECK GPS MARK

CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)

CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)

NAVIGATION SYSTEM - Vehicle Position Mark Deviates Greatly


INSPECTION PROCEDURE

1.CHECK GPS MARK


    Lexus Is250, Is220D. Gse20 Ale20.Navigation.Navigation System.Navigation System Vehicle Position Mark Deviates Greatly

  1. Check that the GPS mark is displayed.

    OK:
    GPS mark is displayed.


NG
GO TO "GPS MARK IS NOT DISPLAYED" IN PROBLEM SYMPTOMS TABLE
OK


2.CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)


    Lexus Is250, Is220D. Gse20 Ale20

  1. Enter the "Navigation Check" mode (Vehicle Sensors) (Click here).

  1. 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 DOES NOT CHANGE IN NAVIGATION CHECK MODE" IN PROBLEM SYMPTOMS TABLE
OK


3.CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)


    Lexus Is250, Is220D. Gse20 Ale20.Navigation.Navigation System.Navigation System Vehicle Position Mark Deviates Greatly

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

    OK:
    Shift Lever Position
    		Display
    P (A/T)
    		OFF
    Reverse position
    		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 DOES NOT CHANGE IN NAVIGATION CHECK MODE" IN PROBLEM SYMPTOMS TABLE
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE