AV-1
AUDIO, VISUAL, NAVIGATION & TELEPHONE SYS-
TEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION AV
A
B
AV
AUDIO, VISUAL, NAVIGATION & TELEPHONE SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
AUDIO (WITH INTEGRATED DISPLAY SYSTEM) ..... 4
System Description .................................................. 4
AUDIO SYSTEM ................................................... 4
Component Parts Location ....................................... 5
Schematic ................................................................ 6
Wiring Diagram — AUDIO — ................................... 7
Terminals and Reference Value for Audio Unit ........ 11
Terminals and Reference Value for A/C and AV
Switch ..................................................................... 12
Terminals and Reference Value for Display Unit .... 12
A/C and AV Switch Self-Diagnosis Function .......... 13
STARTING THE SELF-DIAGNOSIS MODE ....... 13
DIAGNOSIS FUNCTION ..................................... 13
EXITING THE SELF-DIAGNOSIS MODE ........... 13
Symptom Chart ...................................................... 14
Removal and Installation of Audio Unit .................. 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 16
Removal and Installation of Front Door Speaker ... 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
Removal and Installation of Rear Door Speaker .... 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
Removal and Installation of Tweeter ...................... 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
AUDIO (WITH INTEGRATED COLOR DISPLAY
SYSTEM) .................................................................. 18
System Description ................................................ 18
AUDIO SYSTEM ................................................. 18
Component Parts Location ..................................... 19
Schematic .............................................................. 20
Wiring Diagram — AUDIO — ................................. 21
Terminals and Reference Value for Audio Unit ....... 28
Terminals and Reference Value for CD Auto Changer .................................................................. 30
Terminals and Reference Value for A/C and AV
Switch ..................................................................... 31
Terminals and Reference Value for Display Control
Unit ......................................................................... 31
A/C and AV Switch Self-Diagnosis Function .......... 32
STARTING THE SELF-DIAGNOSIS MODE ....... 32
DIAGNOSIS FUNCTION ..................................... 32
EXITING THE SELF-DIAGNOSIS MODE ........... 32
Symptom Chart ....................................................... 33
Removal and Installation of Audio Unit ................... 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 35
Removal and Installation of Rear Audio Control
Switch ..................................................................... 36
REMOVAL ........................................................... 36
INSTALLATION ................................................... 36
Removal and Installation of CD Auto Changer ....... 36
REMOVAL ........................................................... 36
INSTALLATION ................................................... 36
Removal and Installation of Front Door Speaker .... 37
REMOVAL ........................................................... 37
INSTALLATION ................................................... 37
Removal and Installation of Rear Door Speaker .... 37
REMOVAL ........................................................... 37
INSTALLATION ................................................... 37
Removal and Installation of Tweeter ...................... 37
REMOVAL ........................................................... 37
INSTALLATION ................................................... 37
AUDIO ANTENNA .................................................... 38
Wiring Diagram — W/ANT — ................................. 38
Location of Antenna ................................................ 39
Window Antenna Repair ......................................... 39
CHECK ELEMENT .............................................. 39
Removal and Installation of Antenna Amp. ............ 40
REMOVAL ........................................................... 40
INSTALLATION ................................................... 40
INTEGRATED DISPLAY SYSTEM ........................... 41
System Description ................................................. 41
INTEGRATED DISPLAY SYSTEM ...................... 41
AV-18
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)PFP:28185
System DescriptionBKS0028N
AUDIO SYSTEM
The audio system with the A/C and AV switch (operation panel switch) and the audio unit are designed
separately has been adopted.
Operation signal from A/C and AV switch is transmitted to audio unit through display control unit with the
communication line, and it controls the audio system.
Operation signal from rear audio control switch is transmitted to audio unit through A/C and AV switch and
display control unit, and it controls the audio system.
Display signal from audio unit is transmitted to display control unit through the communication line, and
then the operating state of the audio system is displayed in the screen.
6-CD auto changer was installed in the glove box.
CD auto changer is connected with audio unit through the communication line, and the operation signal
from A/C and AV switch is transmitted to CD auto changer through audio unit.
A/C and AV switch can perform the operation check of each switch by starting the self-diagnosis. For
details, refer to AV- 3 2 , "
A/C and AV Switch Self-Diagnosis Function" .
For Audio System operation information, refer to Owner's Manual.
SKIB8801E
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
AV-29
C
D
E
F
G
H
I
J
L
MA
B
AV
38 (R) 37 (G) Audio signal LH Input ONPlay back CD on CD auto
changer
40 (B) 39 (W) Audio signal RH Input ONPlay back CD on CD auto
changer
41 — Shield — — — —
42 — Shield — — — —
44 (R) GroundCommunication signal
REQ (CHG-AUD)Input ONWhen setting to CD auto
changer mode
45 (B) GroundCommunication signal
RX (CHG-AUD)Input ONWhen setting to CD auto
changer mode
46 (W) GroundCommunication signal
TX (AUD-CHG)Output ONWhen setting to CD auto
changer mode Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
SKIB3609E
SKIB3609E
SKIB7338E
SKIB7337E
SKIB7336E
AV-30
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
Terminals and Reference Value for CD Auto ChangerBKS00291
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
2 (R) 1 (G) Audio signal LH Output ONPlay back CD on CD auto
changer
4 (B) 3 (W) Audio signal RH Output ONPlay back CD on CD auto
changer
5 — Shield — — — —
6 — Shield — — — —
8 (R) GroundCommunication signal
REQ (CHG-AUD)Output ONWhen setting to CD auto
changer mode
9 (B) GroundCommunication signal
TX (CHG-AUD)Output ONWhen setting to CD auto
changer mode
10 (W) GroundCommunication signal
RX (AUD-CHG)Input ONWhen setting to CD auto
changer mode
12 (Y) Ground Battery power supply Input OFF — Battery voltage
16 (V) Ground ACC power supply Input ACC — Battery voltage
SKIB3609E
SKIB3609E
SKIB7338E
SKIB7337E
SKIB7336E
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
AV-33
C
D
E
F
G
H
I
J
L
MA
B
AV
Symptom ChartBKS0028V
The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.
CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be
incorrectly mastered by the customer on a computer.
Check if the CDs carry the Compact Disc Logo. If not, the disc is not mastered to the “red book” Compact
Disc Standard and may not play.
Make sure that other operation except audio system can be performed with A/C and AV switch. If these
operations are inoperative with A/C and AV switch, refer to AV- 9 7 , "
Unable to Operate System with A/C
and AV Switch" .
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.
Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.
Multi-path noise: This noise results from a time difference between the broadcast waves directly from the
station arriving at the antenna and the waves reflected by mountains or buildings.
Symptom Possible malfunction location
Audio system does not work properly.
Audio unit power supply circuit
Communication signal circuit between audio unit and display unit
A/C and AV switch
Audio unit
CD auto changer does not work properly.
CD auto changer power supply circuit
Communication signal circuit between audio unit and CD auto changer
CD auto changer
Audio unit
No sound can be heard from all speakers. Audio unit
No sound can be heard from one or several speakers.
Audio signal circuit between audio unit and speaker
Speaker
Tweeter
Audio unit
No sound can be heard from radio or noise is caught.
Antenna amp. ON signal circuit
Antenna feeder
Rear window antenna
Antenna amp.
Audio unit
Unable to operate audio system with rear audio control
switch.
Remote control signal circuit between rear audio control switch and A/C
and AV switch
Rear audio control switch
A/C and AV switch
AV-36
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
Removal and Installation of Rear Audio Control SwitchBKS002CZ
REMOVAL
1. Remove tray box from the center armrest. Refer to SE-117, "Removal and Installation of Seatback" .
2. Disconnect connector.
3. Push pawl on reverse side and remove the rear audio control
switch.
INSTALLATION
Installation is the reverse order of removal.
Removal and Installation of CD Auto ChangerBKS0028X
REMOVAL
1. Remove passenger instrument panel (lower). Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove screws (4) and disconnect connector, and remove CD
auto changer.
3. Remove screws (4) and remove bracket.
INSTALLATION
Installation is the reverse order of removal.
SKIB1365E
SKIB0880E
SKIB0881E
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
ILLUMINATION
LT-245
C
D
E
F
G
H
I
J
L
MA
B
LT
to VDC off switch (illumination) terminal 3 (with VDC)
to CD auto changer (illumination) terminal 14 (with CD auto changer)
to audio unit (illumination) terminal 8
to door mirror remote control switch (illumination) terminal 16
to hazard switch (illumination) terminal 3
to headlamp washer switch (illumination) terminal 3
to cigarette lighter socket terminal 2
to headlamp aiming switch (illumination) terminal 3 (without xenon headlamp)
to A/C and AV switch (illumination) terminal 16
to front heated seat switch (driver side) (illumination) terminal 5
to front heated seat switch (passenger side) (illumination) terminal 5
to front air massage seat switch (illumination) terminal 5 (with air massage seat)
to front door armrest illumination (driver side) terminal 1
to front door armrest illumination (passenger side) terminal 1
to rear door armrest illumination LH terminal 1
to rear door armrest illumination RH terminal 1
to rear sunshade rear switch (illumination) terminal 8 (with rear center armrest switches)
to rear audio control switch (illumination) terminal 17 (with rear center armrest switches)
to rear heated seat switch LH (illumination) terminal 25 (with rear heated seat) and
to rear heated seat switch RH (illumination) terminal 33 (with rear heated seat),
through BCM terminal 16
to display control unit (illumination) terminal 14 (with display control unit)
to display unit (illumination) terminal 4 (without display control unit).
Ground is supplied
to glove box lamp terminal 2
to A/T device illumination terminal 2 (with A/T)
to CVT device illumination terminal 2 (with CVT)
to rear sunshade front switch (illumination) terminal 6 (with rear sunshade)
to VDC off switch (illumination) terminal 4 (with VDC)
to door mirror remote control switch (illumination) terminal 15
to hazard switch (illumination) terminal 4
to headlamp washer switch (illumination) terminal 4
to cigarette lighter socket terminal 1
to headlamp aiming switch (illumination) terminal 4 (without xenon headlamp)
to A/C and AV switch (illumination) terminal 15
to display control unit (illumination) terminal 3 (with display control unit)
to display unit (illumination) terminal 6 (without display control unit)
to front heated seat switch (driver side) (illumination) terminal 6
to front heated seat switch (passenger side) (illumination) terminal 6
to front air massage seat switch (illumination) terminal 6 (with air massage seat)
to front door armrest illumination (driver side) terminal 2 and
to front door armrest illumination (passenger side) terminal 2
through grounds M71 and M72,
to CD auto changer (illumination) (with CD auto changer) and
to Audio unit (illumination)
through case ground,
to rear door armrest illumination LH terminal 2
to rear sunshade rear switch (illumination) terminal 9 (with rear center armrest switches)
to rear audio control switch (illumination) terminal 18 (with rear center armrest switches)