AV
AV-1
DRIVER INFORMATION & MULTIMEDIA
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SECTION AV
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CONTENTS
AUDIO, VISUAL & NAVIGATION SYSTEM
AUDIO WITHOUT NAVIGATION
BASIC INSPECTION ....................................
5
DIAGNOSIS AND REPAIR WORKFLOW ..........5
Work Flow .................................................................5
FUNCTION DIAGNOSIS ...............................6
AUDIO SYSTEM ..................................................6
System Diagram ........................................................6
System Description ...................................................6
Component Parts Location ........................................8
Component Description .............................................8
COMPONENT DIAGNOSIS ..........................9
POWER SUPPLY AND GROUND CIRCUIT .......9
AV CONTROL UNIT ....................................................9
AV CONTROL UNIT : Diagnosis Procedure .............9
MICROPHONE ............................................................9
MICROPHONE : Diagnosis Procedure .....................9
STEERING SWITCH ..........................................11
Description ..............................................................11
Diagnosis Procedure ...............................................11
MICROPHONE SIGNAL CIRCUIT .....................13
Description ..............................................................13
Diagnosis Procedure ...............................................13
ECU DIAGNOSIS .........................................15
AV CONTROL UNIT ...........................................15
Reference Value .....................................................15
Wiring Diagram .......................................................17
SYMPTOM DIAGNOSIS ..............................19
MULTI AV SYSTEM SYMPTOMS ......................19
Symptom Table .......................................................19
NORMAL OPERATING CONDITION ...............20
Description ...............................................................20
PRECAUTION ..............................................21
PRECAUTIONS .................................................21
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
21
PREPARATION ...........................................22
PREPARATION .................................................22
Commercial Service Tool ........................................22
ON-VEHICLE REPAIR .................................23
AUDIO UNIT ......................................................23
Removal and Installation .........................................23
TWEETER .........................................................24
Removal and Installation .........................................24
FRONT DOOR SPEAKER ................................25
Removal and Installation .........................................25
REAR DOOR SPEAKER ..................................26
Removal and Installation .........................................26
STEERING SWITCH .........................................27
Removal and Installation .........................................27
AUDIO ANTENNA .............................................28
Location of Antenna .................................................28
Removal and Installation of Roof Antenna ..............28
AUDIO WITH NAVIGATION
BASIC INSPECTION ...................................
30
DIAGNOSIS AND REPAIR WORKFLOW ........30
Work Flow ................................................................30
FUNCTION DIAGNOSIS ..............................32
AV
AV-3
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U1214 NAVI CONTROL UNIT ............................74
Description ..............................................................74
DTC Logic ...............................................................74
Diagnosis Procedure ...............................................74
U1215 NAVI CONTROL UNIT ............................75
Description ..............................................................75
DTC Logic ...............................................................75
Diagnosis Procedure ...............................................75
U1243 DISPLAY UNIT .......................................76
Description ..............................................................76
DTC Logic ...............................................................76
Diagnosis Procedure ...............................................76
U1244 GPS ANTENNA ......................................78
Description ..............................................................78
DTC Logic ...............................................................78
Diagnosis Procedure ...............................................78
U1300 AV COMM CIRCUIT ...............................79
Description ..............................................................79
POWER SUPPLY AND GROUND CIRCUIT ......80
AV CONTROL UNIT ..................................................80
AV CONTROL UNIT : Diagnosis Procedure ...........80
NAVI CONTROL UNIT ..............................................80
NAVI CONTROL UNIT : Diagnosis Procedure .......80
DISPLAY UNIT ..........................................................81
DISPLAY UNIT : Diagnosis Procedure ...................81
RGB (R: RED) SIGNAL CIRCUIT ......................82
Description ..............................................................82
Diagnosis Procedure ...............................................82
RGB (G: GREEN) SIGNAL CIRCUIT .................83
Description ..............................................................83
Diagnosis Procedure ...............................................83
RGB (B: BLUE) SIGNAL CIRCUIT ....................84
Description ..............................................................84
Diagnosis Procedure ...............................................84
RGB SYNCHRONIZING SIGNAL CIRCUIT .......85
Description ..............................................................85
Diagnosis Procedure ...............................................85
RGB AREA (YS) SIGNAL CIRCUIT ..................86
Description ..............................................................86
Diagnosis Procedure ...............................................86
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT .....................................................
87
Description ..............................................................87
Diagnosis Procedure ...............................................87
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT .............................................................
88
Description ..............................................................88
Diagnosis Procedure ...............................................88
STEERING SWITCH .........................................89
Description ...............................................................89
Diagnosis Procedure ...............................................89
MICROPHONE SIGNAL CIRCUIT ....................91
Description ...............................................................91
Diagnosis Procedure ...............................................91
ECU DIAGNOSIS .........................................93
AV CONTROL UNIT ..........................................93
Reference Value ......................................................93
Wiring Diagram ........................................................96
NAVI CONTROL UNIT ....................................100
Reference Value ....................................................100
DTC Index .............................................................103
DISPLAY UNIT ................................................105
Reference Value ....................................................105
SYMPTOM DIAGNOSIS ............................108
MULTI AV SYSTEM SYMPTOMS ..................108
Symptom Table .....................................................108
NORMAL OPERATING CONDITION .............111
Description .............................................................111
PRECAUTION ............................................119
PRECAUTIONS ...............................................119
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
119
PREPARATION .........................................120
PREPARATION ...............................................120
Commercial Service Tool ......................................120
ON-VEHICLE REPAIR ...............................121
AV (NAVI) CONTROL UNIT ............................121
Removal and Installation .......................................121
TWEETER .......................................................122
Removal and Installation .......................................122
FRONT DOOR SPEAKER ..............................123
Removal and Installation .......................................123
REAR DOOR SPEAKER ................................124
Removal and Installation .......................................124
AUDIO ANTENNA ...........................................125
Location of Antenna ...............................................125
Removal and Installation of Roof Antenna ............125
STEERING SWITCH .......................................126
Removal and Installation .......................................126
AV-4
GPS ANTENNA ...............................................127
Removal and Installation .......................................127
DISPLAY UNIT ................................................128
Removal and Installation .......................................128
MICROPHONE .................................................129
Removal and Installation .......................................129
NAVI CONTROL UNIT .....................................130
Removal and Installation .......................................130
AV-6
< FUNCTION DIAGNOSIS >[AUDIO WITHOUT NAVIGATION]
AUDIO SYSTEM
FUNCTION DIAGNOSIS
AUDIO SYSTEM
System DiagramINFOID:0000000001728605
System DescriptionINFOID:0000000001728606
The audio system is equipped with following function. Each function is operated with audio switch or steering
switch.
FUNCTION DESCRIPTION
Operating signal
Audio system operation can be performed with audio switch or steering switch.
AM/FM Radio Mode
AM/FM radio tuner is built into AV control unit.
Audio signal is received by antenna, next it is input to AV control unit. AV control unit outputs the audio signal
to each speaker.
CD Mode
CD function is built into AV control unit.
AV control unit outputs audio signal to each speaker when CD is inserted to AV control unit.
Hands-free phone system
Hands-free communication can be operated by connecting using Bluetooth® with cellular phone.
Operation is performed by steering switch.
Guide sound that is heard during operation is output from AV control unit to front speaker.
When a call is originated
Spoken voice sound output from the microphone (Mic. Signal) is input to AV control unit. AV control unit out-
puts to cellular phone with Bluetooth
® communication as a TEL voice signal. Voice sound is then heard at
the other party.
When receiving a call Voice sound is input to own cellular phone from the other party. TEL voice signal is output to front speaker,
and the signal is input to AV control unit by establishing Bluetooth
® communication from cellular phone.
NATS AUDIO LINK
JPNIA0162GB
Function
AM/FM radio
CD
HANDS-FREE PHONE
AV-8
< FUNCTION DIAGNOSIS >[AUDIO WITHOUT NAVIGATION]
AUDIO SYSTEM
Component Parts Location
INFOID:0000000001728607
Component DescriptionINFOID:0000000001728608
1. AV control unit M43, M44 2. Front door speaker
Driver side D12
Passenger side D1123. Rear door speaker
LH D207
RH D307
4. Front tweeter
LH M109
RH M475. Steering wheel audio control switch-
es M1026. Microphone R15
ALNIA0890GB
Part name Description
AV CONTROL UNIT Operational switch of audio system is integrated.
Receiving function of AM/FM radio, replaying function of CD and hands-free
phone function are integrated.
Audio signals are output to each speaker.
FRONT DOOR SPEAKER Outputs sound signal from AV control unit.
Outputs high, mid and low range sounds.
REAR DOOR SPEAKER Outputs sound signal from AV control unit.
Outputs high, mid and low range sounds.
FRONT TWEETER Outputs sound signal from AV control unit.
Outputs high range sound.
STEERING SWITCH Operations for audio and hands-free phone are possible.
Steering switch signal (operation signal) is output to AV control unit.
MICROPHONE Used for hands-free phone operation.
Mic. signal is sent to AV control unit.
Power (Mic. VCC) is supplied from AV control unit.
RADIO ANTENNA Radio signal received by antenna is sent to AV control unit.
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-9
< COMPONENT DIAGNOSIS >[AUDIO WITHOUT NAVIGATION]
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COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID:0000000001728609
1.CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES >> GO TO 2
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connector and ground.
Is inspection result OK?
YES >> GO TO 3
NO >> Check harness between AV control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector.
3. Check continuity between AV control unit harness connector and ground.
Is inspection result OK?
YES >> INSPECTION END.
NO >> Repair harness or connector.
MICROPHONE
MICROPHONE : Diagnosis ProcedureINFOID:0000000001728770
1.CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)
1. Turn ignition switch ON.
Check voltage between microphone harness connector R15 terminal
4 and ground.
Is approximately 5V present?
YES >> GO TO 4
NO >> GO TO 2
Power source Fuse No.
Battery 27
Ignition switch ACC or ON 6
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.)
Battery power supply M43 19 OFF 12V
ACC power supply M43 7 ACC 12V
Signal name Connector No. Terminal No. Ignition switch position Continuity
Ground M44 21 OFF Continuity should exist.
Signal nameConnector
No.Te r m i n a l N o .Ignition
switch posi-
tionValue (Ap-
prox.)
MIC power R15 4 ON 5V
WKIA5796E
AV-10
< COMPONENT DIAGNOSIS >[AUDIO WITHOUT NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
1. Turn ignition switch OFF.
2. Disconnect microphone and AV control unit harness connectors.
3. Check continuity between microphone harness connector R15
(A) terminal 4 and AV control unit harness connector M44 (B)
terminal 29.
4. Check continuity between microphone harness connector R15
(A) terminal 4 and ground.
Are the continuity test results as specified?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE)
1. Connect AV control unit harness connector.
2. Turn ignition switch to ACC.
3. Check voltage between AV control unit harness connector M44
terminal 29 and ground.
Is approximately 5V present?
YES >> Inspection End.
NO >> Replace AV control unit. Refer to XX-XX, "*****"
4.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect microphone harness connector R15 and AV control unit harness connector M44.
3. Check continuity between microphone harness connector R15 (A) terminal 2 and AV control unit harness
connector M44 (B) terminal 28.
Does continuity exist?
YES >> Inspection End.
NO >> Repair harness or connector.
AB
Continuity
Connector Terminal Connector Terminal
R15 4 M44 29 Yes
A
—Continuity
Connector Terminal
R15 4 Ground No
ALNIA0320GB
Signal nameConnector
No.Te r m i n a l
No.Ignition switch
positionValue (Approx.)
MIC power M44 29 ACC 5V
ALNIA0321GB
AB
Continuity
Connector Terminal Connector Terminal
R15 2 M44 28 Yes
AV
MICROPHONE SIGNAL CIRCUIT
AV-13
< COMPONENT DIAGNOSIS >[AUDIO WITHOUT NAVIGATION]
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MICROPHONE SIGNAL CIRCUIT
DescriptionINFOID:0000000001728771
Voice signals are transmitted from the microphone to the AV control unit using the microphone signal circuits.
Diagnosis ProcedureINFOID:0000000001728772
1.CHECK HARNESS BETWEEN AV CONTROL UNIT AND MICROPHONE
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and microphone connector.
3. Check continuity between AV control unit harness connector M44 and microphone harness connector
R15.
4. Check continuity between AV control unit harness connector M44 and ground.
Are the continuity test results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK MICROPHONE POWER SUPPLY
1. Connect AV control unit connector and microphone connector.
2. Turn ignition switch ON.
3. Check voltage between microphone harness connector R15 ter-
minal 4 and ground.
Is voltage reading approx. 5 volts?
YES >> GO TO 3
NO >> Replace AV control unit. Refer to XX-XX, "*****"
.
3.CHECK MICROPHONE SIGNAL
Check signal between AV control unit harness connector M44 terminals 27 and 28 with CONSULT-III or and
oscilliscope.
Te r m i n a l Te r m i n a l
Continuity
Connector Terminal Connector Terminal
M4427
R151
Ye s 28 2
29 4
Te r m i n a l
— Continuity
Connector Terminal
M447
Ground No 8
29
4 - Ground : Approx. 5V
WKIA5796E