Page 577 of 3502
INTEGRATED DISPLAY SYSTEM
AV-49
C
D
E
F
G
H
I
J
L
MA
B
AV
Wiring Diagram — COMM —BKS00225
TKWM1669E
Page 578 of 3502
AV-50
INTEGRATED DISPLAY SYSTEM
TKWM4679E
Page 579 of 3502
INTEGRATED DISPLAY SYSTEM
AV-51
C
D
E
F
G
H
I
J
L
MA
B
AV
TKWM4680E
Page 580 of 3502

AV-52
INTEGRATED DISPLAY SYSTEM
Terminals and Reference Value for Display UnitBKS00226
Te r m i n a l
(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 (G) Ground Ignition signal Input ON — Battery voltage
4 (R/L) Ground Illumination signal Input ONLighting switch ON Approx. 12 V
Lighting switch OFF Approx. 0 V
6 (B) Ground Ground — ON — Approx. 0 V
7 (V/W) GroundVehicle speed signal
(8-pulse)Input ONWhen vehicle speed is
approx. 40 km/h (25 MPH)NOTE:
Maximum voltage may be 5 V
due to specifications (connected
units).
8 (G) GroundCommunication signal
(DSP-AUD)Output ONOperate audio volume
switch
9 — Shield — — — —
10 (Y) GroundCommunication signal
(AUD-DSP)Input ONOperate audio volume
switch
11 (BR) GroundCommunication
signal (+)Input/
OutputON —
12 — Shield — — — —
13 (Y) GroundCommunication
signal (–)Input/
OutputON —
14 (L) — CAN-H — — — —
16 (P) — CAN-L — — — —
PKIA1935E
SKIB3607E
SKIB3606E
SKIB7378E
SKIB7379E
Page 581 of 3502
INTEGRATED DISPLAY SYSTEM
AV-53
C
D
E
F
G
H
I
J
L
MA
B
AV
Terminals and Reference Value for A/C and AV SwitchBKS00227
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
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 582 of 3502
AV-54
INTEGRATED DISPLAY SYSTEM
A/C and AV Switch Self-Diagnosis FunctionBKS0022A
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.
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 583 of 3502
INTEGRATED DISPLAY SYSTEM
AV-55
C
D
E
F
G
H
I
J
L
MA
B
AV
On Board Self-Diagnosis FunctionBKS00228
DESCRIPTION
When performing self-diagnosis mode, the following menu is displayed.
DIAGNOSIS ITEM
Self-Diagnosis ModeBKS00229
OPERATION PROCEDURES
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. Initial diagnosis screen is displayed.
Perform diagnosis according to the audio preset No. “1, 2, 3,
4”.
FULL BLINK
All display unit segments turn ON.
Diagnosis itemFunction
switchDescription
FULL BLINK 1 All display unit segments turn ON.
HVAC DIAG 2 Self-diagnosis of air conditioner system is performed.
VERSION 3 Software version of each unit is displayed.
DIAG END 4 Exit from self-diagnosis mode and return to normal screen.
SKIB0828E
SKIA7023J
SKIA7024J
Page 584 of 3502
AV-56
INTEGRATED DISPLAY SYSTEM
HVAC DIAG
Self-diagnosis of air conditioner system is performed. Refer to AT C -
46, "Self-diagnosis Function" .
VERSION
Software version of display unit, A/C and AV switch, and audio unit
are displayed.
DIAG END
Exit from self-diagnosis mode and return to normal screen.
EXITING THE SELF-DIAGNOSIS MODE
Turn ignition switch OFF or press audio preset No. “4”.
SKIA7025J
SKIA7026J