Inspection Procedure

CHECK CABIN

(a) Check the cabin for any object that might interrupt radio reception on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears. HINT:

The GPS uses extremely faint radio waves originating from satellites. If the signal is interrupted by obstructions or other radio waves, the GPS may not be able to properly receive the signal. OK: Mark appears.

Go to step 2

NORMAL OPERATION

CHECK SURROUNDINGS

(a) Check if the vehicle is in a location where GPS signal reception is poor. If the vehicle is in such a place, relocate the vehicle and check if the GPS mark reappears. HINT:

The GPS uses 24 satellites in 6 orbits. At any point in time, 4 satellites should be able to pinpoint your vehicle. However, GPS signals may not reach the vehicle due to influence from the surroundings, vehicle direction, and time. For illustrated examples, see below.

In a tunnel

In a building

On a forest or tree-lined path

In a building tx m\

Under an overpass

On a forest or tree-lined path

Under a cliff, overhang

GPS mark is displayed.

Go to step 3

SYSTEM RETURNS TO NORMAL

CHECK GPS INFORMATION (NAVIGATION CHECK MODE)

GPS Information

^

il Men

u [

1 No. Elv Azm LVL TSTSl No.

Elv

Azm

LVL rSTS"! 1

3 73' /021" 12 1

i 5

80'

/279"

54

P i

8 52' /183' 58 i

i 9

27'

/121"

26

— i

10 32' /219' 39 1

1 13

19'

1330'

11

— i

16 49' mr 20 1

1 18

22'

/300"

12

— 1

20 61' /045" 39 '

21

40'

/142"

49

T I

23 72' 1276' 57 [

J 24

17'

1330'

13

L

Measurement Date (Gl

) MM/DD/YYYY 09:46:00

status: 3D Latitud!

39'59.8'

Longitude 137 00.12'

T

(a) Enter the "Navigation Check" mode (GPS Information) (See page NS-27).

(b) Check how many of the following codes appear in the "STS" column.

For DENSO Made: T, P

For AISIN AW Made:

08H,04H OK:

At least 3 codes appear.

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE RADIO AND NAVIGATION ASSEMBLY

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

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