navigation system NISSAN LATIO 2010 Service User Guide
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Audio Unit (Premium System) Ha rness Connector Terminal Layout
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Terminal and Reference Value for Audio Unit (Premiu NISSAN LATIO 2010 Service User Guide AV-16
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Audio Unit (Premium System) Ha rness Connector Terminal Layout
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Terminal and Reference Value for Audio Unit (Premiu](/img/5/57358/w960_57358-412.png)
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Audio Unit (Premium System) Ha rness Connector Terminal Layout
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Terminal and Reference Value for Audio Unit (Premium System)INFOID:0000000005395312
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Te r m i n a l
(Wire color) ItemSignal
input/
output Condition
Reference value
(Approx.) Example of symp-
tom
+– Ignition
switch Operation
2 (W) 3 (BR) Audio sound
signal front
LH
Output ON
Receive audio
signal No sound from
front door speaker
LH or tweeter LH.
4 (V) 5 (R) Audio sound
signal rear
LHOutput ON
Receive audio
signal No sound from
rear door speaker
LH.
6 (L)*1 Ground Remote
control A
Input ON Press Phone/
End switch 0V
Steering wheel au-dio controls do not function
Press SEEK UP
switch 1.7V
Press VOL UP switch 3.3V
Except for above 5.0V
7 (LG) Ground ACC signal Input ON Ignition switch
ACC or ON
Battery voltageSystem does not
work properly.
11 (G) 12 (SB) Audio sound
signal front
RHOutput ON
Receive audio
signal No sound from
front door speaker
RH or tweeter RH.
SKIA0177E
SKIA0177E
SKIA0177E
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Trouble Diagnosis
INFOID:0000000005395317
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment i NISSAN LATIO 2010 Service User Guide AV-20
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Trouble Diagnosis
INFOID:0000000005395317
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment i](/img/5/57358/w960_57358-416.png)
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Trouble Diagnosis
INFOID:0000000005395317
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and then determine the cause.
NOTE:
The majority of the audio malfunctions are the result of outside causes (damaged CD, electromagnetic inter-
ference, etc.). Check the sympto ms below to diagnose the malfunction.
12
(BR) Ground
iPod® sound signal RH Input Ignition
switch ON When iPod® mode is se-
lected.
15 — Shield — —— —
16
(L) —AV communication signal
(H) Input/
Output ——
—
17
(P) Ground Ground
—Ignition
switch ON — 0
V
18 — Shield — —— —
19 — Shield — —— —
20
(R) Ground iPod® battery charge Output Ignition
switch ON Connected to iPod®.
5.0V
21
(L) Ground
iPod® connection recogni-
tion signal InputIgnition
switch
ON Not connected to iPod®.
4.0V
Connected to iPod®. 0V
22
(O) Ground ACCESSORY-DETECT — Ignition
switch ON Connected to iPod®.
0V
23 — Shield — —— —
24
(Y) Ground iPod® sound signal LH Input Ignition
switch ON When iPod® mode is se-
lected.
Terminal
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB3609E
SKIB3609E
Symptom Check item
Audio system does not work properly. • Audio unit power supply circuit. Refer to
AV- 2 2 , "
Power Supply
Circuit Inspection" .
• Audio unit. Refer to AV- 2 9 , "
Removal and Installation" .
No sound can be heard from all speakers. • Speaker circuit shorted to ground. Refer to
AV- 9 , "
Wiring Dia-
gram - AUDIO -" .
• Audio unit. Refer to AV- 2 9 , "
Removal and Installation" .
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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 the waves sent directly from the broadcast station arriving at the antenna at a different time from the waves t hat reflect off of mountains or buildings.
Noise InspectionINFOID:0000000005395318
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
No sound can be heard from one or several speakers. • Open or short in audio signal circuit between audio unit and front
speaker. Refer to AV- 2 4 , "
Sound Is Not Heard from Front Door
Speaker (Base System)" or AV- 2 6 , "Sound Is Not Heard from
Front Door Speaker or Tweeter (Premium System)" .
• Front speaker. Refer to AV- 2 4 , "
Sound Is Not Heard from Front
Door Speaker (Base System)" or AV- 2 6 , "Sound Is Not Heard
from Front Door Speaker or Tweeter (Premium System)" .
• Open or short in audio signal circuit between audio unit and rear
speaker. Refer to AV- 2 5 , "
Sound Is Not Heard from Rear Door
Speaker (Base System)" or AV- 2 7 , "Sound Is Not Heard from
Rear Door Speaker (Premium System)" .
• Rear speaker. Refer to AV- 2 5 , "
Sound Is Not Heard from Rear
Door Speaker (Base System)" or AV- 2 7 , "Sound Is Not Heard
from Rear Door Speaker (Premium System)" .
• Tweeter (mid level and premium system) AV- 2 6 , "
Sound Is Not
Heard from Front Door Speaker or Tweeter (Premium System)"
or AV- 2 7 , "
Sound Is Not Heard from Rear Door Speaker (Premi-
um System)" .
• Audio unit. Refer to AV- 2 9 , "
Removal and Installation" .
No sound can be heard from radio or noise is heard. • Antenna feeder. Refer to
AV- 3 3
.
• Antenna. Refer to AV- 3 3
.
• Audio unit. Refer to AV- 2 9 , "
Removal and Installation" .
Symptom
Check item
Occurrence condition Possible cause
Occurs only when engine is ON. A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.
Ignition components
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is
running and the lighting switch is ON. Generator
Noise only occurs when various
electrical components are oper-
ating. A cracking or snapping sound occurs with the op-
eration of various switches.
Relay malfunction, radio malfunction
The noise occurs when various motors are operat-
ing. • Motor case ground
•Motor
The noise occurs constantly, not just under certain conditions. • Rear defogger coil malfunction
• Open circuit in printed heater
A cracking or snapping sound occurs while the vehicle is being driven, especially when
it is vibrating excessively. • Ground wire of body parts.
• Ground due to improper part installation
• Wiring connections or a short circuit
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Power Supply Circuit Inspection
INFOID:0000000005395319
1.CHECK FUSE
Check that the following fuses of the audio unit are not blown.
OK or NISSAN LATIO 2010 Service User Guide AV-22
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Power Supply Circuit Inspection
INFOID:0000000005395319
1.CHECK FUSE
Check that the following fuses of the audio unit are not blown.
OK or](/img/5/57358/w960_57358-418.png)
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Power Supply Circuit Inspection
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1.CHECK FUSE
Check that the following fuses of the audio unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4 .
2.AUDIO UNIT POWER SUPPLY CIRCUIT CHECK
1. Disconnect audio unit connector.
2. Check voltage between the audio unit and ground.
OK or NG
OK >> With premium system, GO TO 3.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
Check continuity between audio uni t (premium system) harness con-
nectors M43 (A), M44 (B) terminals 20, 61 and ground.
OK or NG
OK >> Inspection End.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
Steering Switch Check (With Bluetooth)INFOID:0000000005395324
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector and spiral cable connector M30.
3. Check continuity between Bluetooth control unit (A) connector B121 terminals 12, 14, and 13 and spiral
cable (B) connector M30 terminals 24, 31, and 32.
Unit Terminals Signal name Fuse No.
Audio unit 19
Battery power 27
7 Ignition switch ACC or ON 20
UnitTe r m i n a l N o .
OFF ACC ON
(+)
(-)
Connector Terminal
Audio unit M43 19 Ground
Battery
voltage Battery
voltage Battery
voltage
7Ground0V Battery
voltage Battery
voltage
WKIA5345E
Continuity should exist.
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OK or NG
OK >> Inspection End.
NG >> Replace steering switch. Refer to AV-29, "
Removal and Installation" .
Sound Is Not Heard fr
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OK or NG
OK >> Inspection End.
NG >> Replace steering switch. Refer to AV-29, "
Removal and Installation" .
Sound Is Not Heard fr
om Front](/img/5/57358/w960_57358-420.png)
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OK or NG
OK >> Inspection End.
NG >> Replace steering switch. Refer to AV-29, "
Removal and Installation" .
Sound Is Not Heard fr
om Front Door Speaker (Base System)INFOID:0000000005395325
1.HARNESS CHECK
1. Disconnect audio unit connector and front door speaker connector (LH or RH).
2. Check continuity between audio unit connector M43 (A) terminal and suspect speaker connector (B) terminal.
3. Check continuity between audio unit connector M43 terminal and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector and suspect speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
Terminal Signal name ConditionResistance
(Ω)
(Approx.)
16 17 Seek (down) Depress Seek down switch.
165
Phone/Send Depress Phone/Send switch. 0
Volume (down) Depress volume down switch. 487
20 17 Seek (up) Depress Seek up switch.
165
Phone/End Depress Phone/End switch. 0
Volume (up) Depress volume up switch. 487
LKIA0191E
Te r m i n a l s
Continuity
A B
Connector Terminal Connector Terminal
M43 2
D12 +
Ye s
3-
11 D112 +
12 -
Te r m i n a l s Continuity
Audio unit
—
Connector Terminal
M43 2
Ground No
3
11
12
WKIA5444E
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4. Check the signal between audio unit harness connector termi- nals with CONSULT-III or oscilloscope.
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4. Check the signal between audio unit harness connector termi- nals with CONSULT-III or oscilloscope.
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4. Check the signal between audio unit harness connector termi- nals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV-29, "Removal and Instal-
lation".
NG >> Replace audio unit. Refer to AV-29, "
Removal and
Installation" .
Sound Is Not Heard from Rear Door Speaker (Base System)INFOID:0000000005395326
1.HARNESS CHECK
1. Disconnect audio unit connector and rear door speaker connector.
2. Check continuity between audio unit (A) connector terminal and rear door speaker (B) connector terminal.
3. Check continuity between audio unit harness connector terminal and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
2.REAR SPEAKER SIGNAL CHECK
Te r m i n a l s
Condi-tion Reference
signal
(+)
(-)
Con- nec- tor Te r m i -
nal Con-
nec- tor Te r m i -
nal
M43 2
M43 3
Receive
audio
signal
11
1 2
WKIA5352E
SKIA0177E
Te r m i n a l s
Continuity
AB
Connector Terminal Connector Terminal
M43 5
D207 -
Ye s
4+
14 D307 -
13 +
Te r m i n a l s Continuity
Audio unit
—
Connector Terminal
M43 5
Ground No
4
14
13
WKIA5353E
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1. Connect audio unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signa NISSAN LATIO 2010 Service User Guide AV-26
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1. Connect audio unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signa](/img/5/57358/w960_57358-422.png)
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1. Connect audio unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV-29, "Removal and Instal-
lation" .
NG >> Replace audio unit. Refer to AV-29, "
Removal and
Installation" .
Sound Is Not Heard from Front Door Speaker or Tweeter (Premium System)
INFOID:0000000005395327
1.HARNESS CHECK
1. Disconnect audio unit connector and front door speaker and tweeter connector (LH or RH).
2. Check continuity between audio unit harness connector terminal and front door speaker and tweeter harness connector terminal.
3. Check continuity between audio unit harness connector terminal and ground.
Te r m i n a l s
Condi-tion Reference
signal
(+)
(-)
Con-
nector Te r m i -
nal Con-
nector Te r m i -
nal
M43 4
M43 5
Receive
audio
signal
13
14
WKIA5354E
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Te r m i n a l s
Continuity
Audio unit. Speaker or tweeter
Connector Terminal Connector Terminal
M43 2
M46 +
Ye s
3-
11 M47 +
12 -
2 D12 +
3-
11 D112 +
12 -
WKIA5351E
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OK >> GO TO 2.
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OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector, front door speaker connector and tweeter connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit connector terminals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace front speaker. Refer to AV-29, "Removal and
Installation" .
NG >> Replace audio unit. Refer to AV-29, "
Removal and
Installation" .
Sound Is Not Heard from Rear Door Speaker (Premium System)INFOID:0000000005395328
1.HARNESS CHECK
1. Disconnect audio unit connector and rear door speaker connector.
Te r m i n a l s
Continuity
Audio unit
—
Connector Terminal
M43 2
Ground No
3
11
12
Te r m i n a l s Condi-tion Reference
signal
(+)
(-)
Con-
nector Te r m i -
nal Con-
nector Te r m i -
nal
M43 2
M43 3
Receive
audio
signal
11
1 2
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Component Parts and Har ness Connector LocationINFOID:0000000005395333
System DescriptionIN NISSAN LATIO 2010 Service User Guide TELEPHONEAV-35
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Component Parts and Har ness Connector LocationINFOID:0000000005395333
System DescriptionIN](/img/5/57358/w960_57358-431.png)
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Component Parts and Har ness Connector LocationINFOID:0000000005395333
System DescriptionINFOID:0000000005395334
BLUETOOTH® HANDS-FREE PHONE SYSTEM
Refer to the Owner's Manual for Bluetooth telephone system operating instructions.
NOTE:
Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth telephone
system.
Bluetooth telephone system allows users who have a Bl uetooth cellular telephone to make a wireless connec-
tion between their cellular telephone and the Bluetooth control unit. Hands-free cellular telephone calls can be
sent and received. Personal memos can be created using the NISSAN Voice Recognition system. Some Blue-
AWNIA2073ZZ
1. Audio unit M43, M44 2. Steering wheel audio control
switches 3. Combination meter M24
4. Bluetooth microphone R15 5. Bluetooth antenna (hatchback) 6. Bluetooth control unit B121, B122 (hatch-
back) [view with luggage side lower finish-
er (RH) removed]
7. Bluetooth antenna (sedan) 8. Bluetooth control unit B121, B122
(sedan) (view with trunk side fin-
isher RH removed)
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tooth cellular telephones may not be recognized by t
he Bluetooth control unit. When a cellular telephone or
the Bluetooth control uni NISSAN LATIO 2010 Service User Guide AV-36
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tooth cellular telephones may not be recognized by t
he Bluetooth control unit. When a cellular telephone or
the Bluetooth control uni](/img/5/57358/w960_57358-432.png)
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tooth cellular telephones may not be recognized by t
he Bluetooth control unit. When a cellular telephone or
the Bluetooth control unit is replaced, the telephone mu st be paired with the Bluetooth control unit. Different
cellular telephones may have different pairing procedures. Refer to the cellular telephone operating manual.
Bluetooth Telephone System Diagram
Bluetooth Control Unit
When the ignition switch is turned to ACC or ON, the Bluetooth control unit will power up. During power up, the
Bluetooth control unit is initialized and performs various self checks. Initialization may take up to 10 seconds. If
a phone is present in the vehicle and paired with the Bluetooth control unit, NISSAN Voice Recognition will
then become active. Bluetooth telephone functions can be turned off using the NISSAN Voice Recognition
system. For Bluetooth contro l unit location, refer to AV-35, "
Component Parts and Harness Connector Loca-
tion".
Steering Wheel Audio Control Switches
When buttons on the steering wheel audio control switch are pushed, the resistance in steering wheel audio
control switch circuit changes depending on which button is pushed. The Bluetooth control module uses this
signal to perform various functions while navigating through the voice recognition system.
The following functions can be performed using the steering wheel audio control switch:
• Initiate Self Diagnosis of the Bluetooth telephone system
• Start a voice recognition session
• Answer and end telephone calls
• Adjust the volume of calls
• Record memos
Volume Switch
Call volume can be adjusted using the audio unit volume switch.
Bluetooth Microphone
The Bluetooth microphone is located in the roof console assembly. The Bluetooth microphone sends a signal
to the Bluetooth control unit. The Bluetooth microphone c an be actively tested during self-diagnosis. For Blue-
tooth microphone location, refer to AV-35, "
Component Parts and Harness Connector Location".
Audio Unit
The audio unit receives signals from the Bluetooth control unit and sends audio signals to the speakers.
AWNIA2074GB
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