Page 609 of 3502
INTEGRATED COLOR DISPLAY SYSTEM
AV-81
C
D
E
F
G
H
I
J
L
MA
B
AV
18 (G) Ground RGB signal (B: blue) Input ONStart DCU Confirmation
mode, and then display
color bar by selecting “Dis-
play Color Spectrum Bar”
on Display Diagnosis
screen
19 (R) GroundRGB synchronizing
signalInput ONWhen displaying RGB
image
20 (W) GroundVe r ti c a l
synchronizing (VP)
signalOutput ON —
21 — Shield — — — —
22 (Y) GroundCommunication signal
(DSP-DCU)Output ON —
23 — Shield — — — —Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
SKIB7771E
SKIB3603E
SKIB3598E
SKIB3606E
Page 610 of 3502
AV-82
INTEGRATED COLOR DISPLAY SYSTEM
Terminals and Reference Value for A/C and AV SwitchBKS0027T
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
1 (G/B) 3 (B/W)Remote control signal
AInput ONPress and hold MODE
switchApprox. 0 V
Press and hold SEEK
DOWN switchApprox. 1.7 V
Press and hold VOL DOWN
switchApprox. 3.3 V
Except for above Approx. 5 V
2 (R) 3 (B/W)Remote control signal
BInput ONPress and hold POWER
switchApprox. 0 V
Press and hold SEEK UP
switchApprox. 1.7 V
Press and hold VOL UP
switchApprox. 3.3 V
Except for above Approx. 5 V
3 (B/W) GroundRemote control
ground— ON — Approx. 0 V
7 (V) Ground ACC power supply Input ACC — Battery voltage
11 (Y) GroundCommunication
signal (–)Input/
OutputON —
12 (BR) GroundCommunication
signal (+)Input/
OutputON —
13 (B) Ground Ground — ON — Approx. 0 V
14 — Shield — — — —
SKIB7379E
SKIB7378E
Page 611 of 3502

INTEGRATED COLOR DISPLAY SYSTEM
AV-83
C
D
E
F
G
H
I
J
L
MA
B
AV
Terminals and Reference Value for Rear View Camera Control UnitBKS0027U
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
1 (Y) Ground Battery power supply Input OFF — Battery voltage
2 (V) Ground ACC power supply Input ACC — Battery voltage
3 (B) Ground Ground — ON — Approx. 0 V
4 (G/W) Ground Reverse signal Input ONSelector lever in R position Approx. 12 V
Other than selector lever in
R positionApprox. 0 V
5 (BR/W) GroundCamera-connection
recognition signalOutput ON — Approx. 0 V
6 (O) —Data transmit/receive
signal—— — —
8 (P) Ground Camera power supply Output ONSet the selector lever in R
position, and then display
the rear view imageApprox. 6 V
9 — Shield — — — —
10 (W) GroundRear view image
signalInput ONSet the selector lever in R
position, and then display
the rear view image
11 — Shield — — — —
12 (BR) GroundRear view image
signalOutput ONSet the selector lever in R
position, and then display
the rear view image
SKIB3608E
SKIB3608E
Page 612 of 3502

AV-84
INTEGRATED COLOR DISPLAY SYSTEM
Special Note for Trouble DiagnosisBKS0027V
Prior to performing trouble diagnosis, make sure there are no corresponding description in the “Example of
Symptoms Possible No Malfunction”. Refer to AV- 111 , "
Example of Symptoms Possible No Malfunction" .
A/C and AV Switch Self-Diagnosis FunctionBKS00280
Performing self-diagnosis makes it possible to check operation of A/C and AV switch indicator (LED) and other
switches.
STARTING THE SELF-DIAGNOSIS MODE
1. Turn ignition switch OFF.
2. With three switches (DEF, REC/FRE and MODE) pressed simul-
taneously, turn the ignition switch to ACC.
DIAGNOSIS FUNCTION
The following are checked:
All the indicators (LED) in the A/C and AV switch.
Continuity of the switches by sounding the buzzer when pressing the A/C and AV switch.
Continuity of the switches by sounding the buzzer when pressing the rear audio control switch.
NOTE:
Indicators (LED) of REC/FRE switch change to “FRE” → “REC” → “FRE” every time the REC/FRE switch
is pressed. (These two do not turn on at the same time.)
Impossible to check rear window defogger switch operation (No beep sound even under normal status).
EXITING THE SELF-DIAGNOSIS MODE
Turn ignition switch OFF.
SKIB1188E
Page 613 of 3502

INTEGRATED COLOR DISPLAY SYSTEM
AV-85
C
D
E
F
G
H
I
J
L
MA
B
AV
On Board Self-Diagnosis FunctionBKS0027W
DESCRIPTION
Trouble diagnosis function of system has a self-diagnosis mode by automatic operation and a confirma-
tion mode by manual operation.
Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the display.
Confirmation mode displays trouble diagnosis that require an operation and a judgment by a human
(auto-decision cannot be performed by the system), and an error history of system.
DIAGNOSIS ITEM
Mode Description
DCU Failure Diagnosis
Display control unit diagnosis
Analyzes connection between the display control unit and each unit, and operation of
each unit.
DCU
ConfirmationDCUDisplay DiagnosisColor tone and shading of the display control unit-generated image can be checked by
the display of a color bar and a gray scale.
Vehicle SignalDiagnosis of signals that are input to display control unit can be performed for speed sig-
nal, Light, IGN and Reverse.
History of ErrorMalfunctions that occurred in the past are displayed, along with the number of times each
has occurred.
Software Version Software version of each unit is displayed.
HVAC Self-diagnosis of air conditioner system is performed.
CAN Diagnosis The transmitting/receiving of CAN communication can be monitored.
Page 614 of 3502
AV-86
INTEGRATED COLOR DISPLAY SYSTEM
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “MUTE” button, turn the volume control dial
clockwise or counterclockwise for 30 clicks or more. (When the
self-diagnosis mode is started, a short beep will be heard.)
4. The initial diagnosis screen is displayed.
5. The item of “DCU Failure Diagnosis” and “DCU Confirmation”
can be selected.
Select each item with “FM” button and “AM” button of A/C and
AV switch, and then determine by “CD·CHG” button.
When pressing “3 RANDOM” button of A/C and AV switch,
return to the previous screen.
SKIB8825E
SKIB0829E
SKIB1985E
Page 615 of 3502

INTEGRATED COLOR DISPLAY SYSTEM
AV-87
C
D
E
F
G
H
I
J
L
MA
B
AV
Self-Diagnosis ModeBKS0027X
DIAGNOSIS PROCEDURE
1. Select “DCU Failure Diagnosis”.
Self-diagnosis screen is displayed, and then self-diagnosis
starts.
The bar graph visible below self-diagnosis screen displays
progress of the diagnosis.
2. When exiting self-diagnosis, a confirmation screen for unit con-
nection may be displayed.
When judging an optional device as an abnormal connection,
a confirmation screen is displayed to check if the applicable
device is actually equipped. When it is equipped, a screen for
diagnosis results is displayed by selecting the device name
and by selecting “Finish”. (Unequipped units can also be dis-
played by option.)
When optional device is connected normally, the switch of the
device name is not displayed.
3. On the diagnosis results screen, each unit name and connection
line will be colored according to the diagnosis result, as follows.
NOTE:
DCU = Display control unit
SW = A/C and AV switch
If multiple malfunctions occur at the same time for a single
unit, the screen switch colors are determined according to the following order of priority: red > yellow >
gray.
Screen when it is normal
–Between DCU and SW is connected in a gray.
–Between DCU and DISPLAY, DCU and AUDIO, AUDIO and CD-CHG are connected in green.
4. Select a switch on the diagnosis results screen, and comments
for the diagnosis results will be shown.
SKIB0830E
SKIB0831E
Green : No malfunctioning.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.
Yellow : Cannot be judged by self-diagnosis results.
SKIB8826E
SKIB0833E
Page 616 of 3502

AV-88
INTEGRATED COLOR DISPLAY SYSTEM
SELF-DIAGNOSIS RESULT
Check the applicable display in the following table, and then repair the malfunctioning parts.
Quick Reference Table
Self-diagnosis result screen Possible cause Action to take
Display control unit malfunction is
detected.Replace display control unit.
Malfunction is detected on communi-
cation signal between display control
unit and display.1. Check communication circuit between
display control unit and display.
2. Check communication signal between
display control unit and display.
3. If the results from the above checkup
show no malfunction, replace either
display control unit or display, and then
start self-diagnosis.
4. If self-diagnosis results still show any
malfunction, replace the other unit.
Audio unit power supply circuit mal-
function is detected.
Malfunction is detected on commu-
nication signal between display con-
trol unit and audio unit.1. Check audio unit power supply circuit.
2. Check communication circuit between
display control unit and audio unit.
3. Check communication signal between
display control unit and audio unit.
4. If the results from the above checkup
show no malfunction, replace either
display control unit or audio unit, and
then start self-diagnosis.
5. If self-diagnosis results still show any
malfunction, replace the other unit.
CD auto changer power supply cir-
cuit malfunction is detected.
Malfunction is detected on commu-
nication signal between audio unit
and CD auto changer.1. Check CD auto changer power supply
circuit.
2. Check communication circuit between
audio unit and CD auto changer.
3. Check communication signal between
audio unit and CD auto changer.
4. If the results from the above checkup
show no malfunction, replace either
audio unit or CD auto changer, and
then start self-diagnosis.
5. If self-diagnosis results still show any
malfunction, replace the other unit.
SKIB8827E
SKIB8828E
SKIB8829E
SKIB8830E