TOYOTA PRIUS 2001 Service Repair Manual

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.

I15456
to Display
check screen switch
± DIAGNOSTICSNAVIGATION SYSTEM
DI±809
2001 PRIUS (RM778U)
(b) COLOR BAR CHECK MODE SCREEN
(1) Color display is checked in this screen.
(2) Color Bar:
Black, Red, Green, Blue, White and Stripe is displayed in bars.
If a bar is touched, color or stripe of the bar is appeared all over the screen. When touched again, it returns
to the previous screen.
(3) Display Check Screen Switch
Pressing this switch activates the Display Check Mode screen.

I18203
Display
check screen switchHorizontal line
check screen switch
DI±810
± DIAGNOSTICSNAVIGATION SYSTEM
2001 PRIUS (RM778U)
(c) TOUCH SWITCH CHECK MODE SCREEN
(1) Operating condition is checked line by line in the Touch Switch Check Mode screen.
(2) Check Line:
Lines are displayed by using infrared beams in this screen.
Once a beam is blocked off by touching the screen with a fingertip, the blocked part of the line
is deleted.
(3) Horizontal Line Check Screen Switch:
Pressing this switch activates a screen in which beams of horizontal lines are checked.
(4) Display Check Mode Switch
Pressing this switch activates the Display Check Mode screen.

I15462
Display
check screen switch
Press point
± DIAGNOSTICSNAVIGATION SYSTEM
DI±811
2001 PRIUS (RM778U)
(d) TOUCH POINT CHECK MODE SCREEN
(1) In this screen, the position detected by the pressure sensing touch switch is checked.
(2) Press point:
The detected point is indicated by a cross±hair cursor.
(3) Display Check Screen Switch
Pressing this switch activates the Display Check Mode screen.

I15461
Display
check screen switch
DI±812
± DIAGNOSTICSNAVIGATION SYSTEM
2001 PRIUS (RM778U)
(e) VEHICLE SIGNAL CHECK MODE SCREEN
(1) Status of the Vehicle Signal which has been loaded into the display is checked in this screen.
(2) Signal Description
Battery: Displays battery voltage in V.
IG: Displays ON or OFF of the ignition switch.
PKB: Displays ON (applied) or OFF (released) of the parking brake.
SPEED: Displays the vehicle speed in km/h.
TAIL: Displays ON or OFF of the tail light switch.
(3) Display Check Screen Switch
Pressing this switch activates the Display Check Mode screen.

DI27Z±05
Physical address
Logical addressMeaning
Three±digit code (shown in hexadecimal) which is given to each component comprising the
AVC ± LAN
Corresponding to the function, individual symbols are specified..
Two±digit code (shown in hexadecimal) which is given to each function comprising the inner system
of the AVC ± LAN.
Physical address: 110 Multi display
Diagnosis item
Panel Switch
Error
Touch Switch
ErrorDiagnosis contentCountermeasure and
inspected parts
Error in panel switch input part is de-
tected.
(Error in switch control part, or inter-
nal communication error with switch
control part is detected.)
Error in touch switch sensor is de-
tected.
Inspect all switches on touch
switch test screen in display check
mode. If any of lines and point does
not react, replace multi±display as-
sembly.

If all switches function without
problem, observe them for a while.

Inspect all touch switches on
touch switch test screen in display
check mode. If any of lines does
not react, replace multi±display as-
sembly.

If all of vertical and horizontal
lines react normally, observe them
for a while. Logical address
21 *1
(Switch)
Replace multi±display assembly.
21
(Switch)
34
(Front passenger
monitor)
DTC
11
10
Error in power supply system for
picture circuit (abnormal voltage) is
detected. Error in Picture
Circuit 10
Decline in power output from in-
verter circuit for backlight. Backlight Error
(No current)Replace multi±display assembly.
34
(Front passenger
monitor)11
Excess power output from inverter
circuit for backlight.Replace multi±display assembly.
34
(Front passenger
monitor)12
Backlight Error
(Excess
current)
Abnormal condition of ROM is de-
tected.Replace multi±display assembly.
01
(Communication
control)21ROM Error
Abnormal condition of RAM is de-
tected.Replace multi±display assembly.
01
(Communication
control)22RAM Error
Terms
*1: Check if the operation in Touch Point Check or Touch Switch Check screen is normal. If it operates without any
problem, see how things go for a while.
Although this code is defined as Panel Switch Error, there are touch switches only on the display. If the internal com-
munication is erroneous, however, this code is stored.
± DIAGNOSTICSNAVIGATION SYSTEM
DI±813
2001 PRIUS (RM778U)
DIAGNOSTIC TROUBLE CODE CHART