2001 TOYOTA PRIUS Service Repair Manual

I17100
to 1. Diagnosis
MENU screen
The Microphone Check screen is not
applicable to the Prius. DI±802
± DIAGNOSTICSNAVIGATION SYSTEM
2001 PRIUS (RM778U)
3. NAVIGATION CHECK MODE
HINT:
Navigation Check Mode is operated as follows.

I17095
Diagnosis MENU
screen switch GPS information
mode screen switch
Vehicle sensor mode
screen switch
Color bar check
mode screen switch
± DIAGNOSTICSNAVIGATION SYSTEM
DI±803
2001 PRIUS (RM778U)
(a) NAVIGATION CHECK MODE SCREEN
(1) Various check screens for the Navigation ECU can be started from this menu screen.
(2) GPS Information Mode Screen Switch
Pressing this switch activates GPS Information Mode Screen.
(3) Vehicle Sensor Mode Screen Switch
Pressing this switch activates the Vehicle Signal Mode screen.
(4) Color Bar Check Mode Screed Switch
Pressing this switch activates the Color Bar Check Mode screen.
(5) Diagnosis Menu Screen Switch
Pressing this switch activates the Diagnosis Menu screen.

I17096
Navigation Check
screen switch
Time data
Position data
Measurement Status Satellite
Information
DI±804
± DIAGNOSTICSNAVIGATION SYSTEM
2001 PRIUS (RM778U)
(b) GPS INFORMATION MODE SCREEN
(1) This screen displays GPS related data.
HINT:
Data are updated every 1 sec.
(2) Satellite Information
The angle of elevation of relevant satellite, azimuth signal level, and receiving condition of sig-
nals are displayed.
HINT:
The reception status shows receiving.
ºTº: means in operation but measurement is not being used for positioning.
ºPº: means measurement is being used for positioning.
º±º: means no data can be received.
Display area for up to 8 satellites is ensured.
Data shall be updated corresponding to change of information.
(3) Time data: The time data obtained from a GPS receiver is displayed in month, day, year, hour
and minute.
(4) The displayed time is Greenwich Mean Time.
(5) Position Data: The latitude and longitude of the current location are displayed in degree and min-
ute.
(6) Measurement Status is displayed in the following 5 items.
2D: 2 dimensions.
3D: 3 dimensions.
NG: GPS information cannot be used.
error: Receiving error occurs.
±: Other than the above.
(7) Navigation Check Screen Switch
Pressing this switch activates the Navigation Check screen.

I17097
Navigation check
screen switch
± DIAGNOSTICSNAVIGATION SYSTEM
DI±805
2001 PRIUS (RM778U)
(c) VEHICLE SIGNAL CHECK MODE SCREEN
(1) Status of the vehicle sensor which are input to the Navigation ECU is checked in this screen.
HINT:
Data are updated every 1 sec.
(2) ACC signal status: Displayed as ON/OFF.
(3) REV signal status: Displayed as ON/OFF.
(4) SPD signal status: The following is displayed:

The cumulative value of the input pulse after displaying this screen. (shown in 5 digits)

Vehicle speed (Unit: km/h, mph)
(5) Output condition of the gyro sensor: The following is displayed:

Voltage (Unit: mV, LSB: 1mV)

Relative azimuthal angle to the current point (0 degree).
Assuming the angle at a point when this screen is activated as 0 degree.
(6) Navigation Check Menu Screen Switch
Pressing this switch displays the Navigation Check screen.

I17098
Navigation check
screen switch
DI±806
± DIAGNOSTICSNAVIGATION SYSTEM
2001 PRIUS (RM778U)
(d) COLOR BAR CHECK MODE SCREEN
(1) Color display of the Navigation ECU is checked in this screen.
(2) Color Bars:
Five colors of ºBLACKº, ºREDº, ºGREENº, ºBLUEº and ºWHITEº are displayed as bars.
(3) Navigation Check Screen Switch
Pressing this switch displays the Navigation Check screen.

I15454
to 1. Diagnosis MENU
mode screen switch
± DIAGNOSTICSNAVIGATION SYSTEM
DI±807
2001 PRIUS (RM778U)
4. DISPLAY CHECK MODE
HINT:
Display Check Mode is operated as follows.

I15453
to 1. Diagnosis MENU
screen switch Color bar
check mode switch
Touch switch
check mode switch
Touch point
check mode switch
Vehicle signal
check mode switch
DI±808
± DIAGNOSTICSNAVIGATION SYSTEM
2001 PRIUS (RM778U)
(a) DISPLAY CHECK MENU SCREEN
(1) Various screens to check the display are started from this screen.
(2) Color Bar Check Mode Switch
Pressing this switch activates the Color Bar Check Mode screen.
(3) Touch Switch Check Mode Switch
Pressing this switch activates the Touch Switch Check Mode screen.
(4) Touch Point Check Mode Switch
Pressing this switch activates the Touch Point Check Mode screen.
(5) Vehicle Signal Check Mode Switch
Pressing this switch activates the Vehicle Signal Check Mode screen.
(6) Diagnosis MENU Screen Switch
Pressing this switch activates the Diagnosis MENU screen.