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
STEERING SWITCH
AV-11
< COMPONENT DIAGNOSIS >[AUDIO WITHOUT NAVIGATION]
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STEERING SWITCH
DescriptionINFOID:0000000001728773
When one of the steering wheel AV control switches is pushed, the resistance in the steering wheel AV control
switch circuit changes depending on which button is pushed.
Diagnosis ProcedureINFOID:0000000001728774
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Disconnect steering wheel audio control switch connector M102.
2. Check resistance between steering switch connector terminals.
Do the steering wheel audio control switches check OK?
YES >> GO TO 2
NO >> Replace steering wheel audio control switch. Refer to XX-XX, "*****"
.
2.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M43 and spiral cable con-
nector M30.
3. Check continuity between AV control unit harness connector
M43 (A) and spiral cable harness connector M30 (B).
4. Check continuity between AV control unit connector M43 (A) and ground.
Are the continuity results as specified?
YES >> GO TO 3
NO >> Repair harness.
3.SPIRAL CABLE CHECK
Terminal Signal name ConditionResistance
(Ω)
(Approx.)
16 17Seek (down)
Depress switch.165
Volume (down) Depress VOL down switch. 487
Power Depress PWR switch. 0
20 17Seek (up)
Depress switch.165
Volume (up) Depress VOL up switch. 487
Mode Depress MODE switch. 0
WKIA4457E
AB
Continuity
Connector Terminal Connector Terminal
M436
M3024
Ye s 15 31
16 32
A
—Continuity
Connector Terminal
M436
Ground No 15
16
ALNIA0332GB
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
AV-20
< SYMPTOM DIAGNOSIS >[AUDIO WITHOUT NAVIGATION]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000001728625
RELATED TO AUDIO
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 malfunctioning.
Check that noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment. Then determine the cause.
NOTE:
CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be incor-
rectly mastered by the customer on a computer.
Check that 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.
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise from trains and other
sources, is not a malfunction.
NOTE:
Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains 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.
RELATED TO TELEPHONE
Symptoms Cause and Counter measure
Cannot playCheck that the CD was inserted correctly.
Check that the CD is scratched or dirty.
Check that there is condensation inside the player, and if there is, wait until the condensation is
gone (about 1 hour) before using the player.
The player will play correctly after it returns to the normal temperature if there is a temperature
increase error.
Only the music CD files (CD-DA data) will be played if there is a mixture of music CD files (CD-
DA data) and MP3/WMA files on a CD.
Files with extensions other than “.MP3”, “.WMA”, “.mp3”, or “.wma” cannot be played.
Check that the finalization process, such as session close and disc close, is done for the disc.
Check that the CD is protected by copyright.
Poor sound quality Check that the CD is scratched or dirty.
It takes a relatively long time before
the music starts playing.If there are many folder or file levels on the MP3/WMA CD, or if it is a multisession disc, some
time may be required before the music starts playing.
The songs do not play back in the
desired order.The playback order is the order in which the files were written by the software, so the files might
not play in the desired order.
Symptom Possible cause Possible solution
The system does not recognize the
command.
The system recognizes the com-
mand incorrectly.The interior of the vehicle is too noisy.Close the windows or have other occupants
be quiet.
The volume of the voice is too low. Speak louder.
Pronunciation is unclear. Speak clearly.
Voice recognition mode is not yet ready to speak.Push the release “ ” on the steering
switch, and speak a command after the
tone sounds.
5 seconds or more have passed after pushed and
released “ ” on the steering switch.Make sure to speak a command within
5seconds after push and release “ ” on
the steering switch.
AV
NAVIGATION SYSTEM
AV-35
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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NAVIGATION SYSTEM
System DiagramINFOID:0000000001728631
System DescriptionINFOID:0000000001728632
NAVIGATION SYSTEM
Location Detection Principle
The navigation system periodically calculates the vehicle's current
position according to the following three signals:
Travel distance of the vehicle as determined by the vehicle speed
sensor
Turning angle of the vehicle as determined by the gyroscope
(angular velocity sensor)
Direction of vehicle travel as determined by the GPS antenna
(GPS information)
The current position of the vehicle is then identified by comparing the
calculated vehicle position with map data read from the map DVD-
ROM, which is stored in the DVD-ROM drive (map-matching), and
indicated on the screen as a vehicle mark. More accurate data is
judged and used by comparing vehicle position detection results found by the GPS with the result by map-
matching.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.
Travel distance
Travel distance calculations are based on the vehicle speed sen-
sor input signal. Therefore, the calculation may become incorrect
as the tires wear down. To prevent this, an automatic distance cor-
rection function has been adopted.
Travel direction
Change in the travel direction of the vehicle is calculated by a gyro-
scope (angular velocity sensor) and a GPS antenna (GPS informa-
tion). They have both advantages and disadvantages.
JPNIA0157GB
SKIB1058E
SEL684V
AV-36
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
NAVIGATION SYSTEM
More accurate traveling direction is detected because priorities are set for the signals from these two
devices according to the situation.
Map-Matching
Map-matching compares a current location detected by the method
in the “Location Detection Principle” with a road map data from Map
DVD-ROM stored in DVD-ROM drive.
NOTE:
The road map data is based on data stored in the map DVD-ROM.
The vehicle position may not be corrected under the following circumstances and after driving for a certain
time when GPS information is difficult to receive. In this case, the vehicle mark on the display must be cor-
rected manually.
In map-matching, alternative routes to reach the destination will be
shown and prioritized, after the road on which the vehicle is cur-
rently driven has been judged and the vehicle mark has been repo-
sitioned.
Alternative routes will be shown in different order of priority, and
the incorrect road can be avoided if there is an error in distance
and/or direction.
They are of the same priority if two roads are running in parallel.
Therefore, the vehicle mark may appear on either of them alter-
nately, depending on maneuvering of the steering wheel and con-
figuration of the road.
Map-matching does not function correctly when a road on which
the vehicle is driving is new and not recorded in the map DVD-
ROM, or when road pattern stored in the map data and the actual
road pattern are different due to repair.
The map-matching function may find another road and position the
vehicle mark on it when driving on a road not present in the map.
Then, the vehicle mark may change to it when the correct road is
detected.
Effective range for comparing the vehicle position and travel direc-
tion calculated by the distance and direction with the road data
read from the map DVD-ROM is limited. Therefore, correction by
map-matching is not possible when there is an excessive gap
between current vehicle position and the position on the map.
GPS (Global Positioning System)
Type Advantage Disadvantage
Gyroscope
(angular velocity sensor)Can detect the vehicle's turning angle quite
accurately.Direction errors may accumulate when vehicle is
driven for long distances without stopping.
GPS antenna
(GPS information)Can detect the vehicle's travel direction
(North/South/East/West).Correct direction cannot be detected when vehicle
speed is low.
SEL685V
SEL686V
SKIA0613E
AV
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
AV-39
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
Diagnosis DescriptionINFOID:0000000001728643
MULTI AV SYSTEM on board diagnosis function
The NAVI control unit diagnosis function starts up with audio switch operation and the NAVI control unit per-
forms a diagnosis for each unit in the system during the on board diagnosis.
Perform a CONSULT-III diagnosis if the on board diagnosis does not start, e.g., the screen does not display
anything, the multifunction switch does not function. etc.
On board diagnosis
Description
The trouble diagnosis function has a self-diagnosis mode for conducting trouble diagnosis automatically and
a confirmation/adjustment mode for operating manually.
The self-diagnosis mode performs diagnoses on the NAVI control unit, connections between system compo-
nents as well as connections between NAVI control unit and GPS antenna. Then it displays the diagnosis
results on the display.
The confirmation/adjustment mode allows the technician to check, modify or adjust the vehicle signals and
set values, as well as to monitor the system error records and system communication status. The check,
modify or adjust actions generally require human intervention and judgment (the system cannot make judg-
ment automatically).
On board diagnosis item
STARTING PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.
Mode Description
Self Diagnosis NAVI control unit diagnosis
Diagnoses the connections across system components, between
NAVI control unit and GPS antenna.
Confirmation/
AdjustmentDisplay DiagnosisThe following check functions are available: color tone check by color
bar display, light and shade check by gray scale display.
Vehicle SignalsDiagnosis of signals can be performed for vehicle speed, parking
brake, lights, ignition switch, and reverse.
Speaker Test The connection of a speaker can be confirmed by test tone.
NavigationSteering Angle Ad-
justmentA difference can be adjusted between the actual turning angle and the
vehicle mark turning angle.
Speed CalibrationA difference can be adjusted between the current location mark and the
actual location.
Error HistoryThe system malfunction and the frequency when occurred in the past
are displayed. The time and place that the selected malfunction last oc-
curred are displayed when the malfunctioning item is selected.
Vehicle CAN Diagnosis The transmitting/receiving of CAN communication can be monitored.
AV COMM DiagnosisThe communication condition of each unit of Multi AV system can be
monitored.
Handsfree PhoneThe received volume adjustment of hands-free phone, microphone
speaker check, and erase memory can be performed.
Bluetooth The passkey and the device name can be checked and changed.
Delete Unit Connection Log Erase the connection history of unit and error history.
Feature Restriction SettingOperations of navigation system while driving can be restricted by us-
ing this function.