2008 NISSAN LATIO bluetooth

AV-1
ELECTRICAL
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SECTION AV
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CONTENTS
AUDIO, VISUAL, NAVIGATION & TELEPHONE SYS-
TEM
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
PREPARATION ...................................................3
Commercial Service Tool ..........................................3
AUDIO .................................................................4
Component Parts Location ........................................4
System Description ...................................................4
Schematic .................................................................6
Wiring Diagram - AUDIO - .........................................8
Audio Unit (Base System) Harness Connector
Terminal Layout ......................................................
15
Terminal and Reference Value for Audio Unit
(Base System) .........................................................
15
Audio Unit (Mid Level and Premium System) Har-
ness Connector Terminal Layout ............................
16
Terminal and Reference Value for Audio Unit (Mid
Level and Premium System) ...................................
16
Subwoofer Harness Connector Terminal Layout
(Premium Audio System) ........................................
19
Terminal and Reference Value for Subwoofer
(Premium Audio System) ........................................
19
Satellite Radio Tuner Harness Connector Termi-
nal Layout ................................................................
19
Terminal and Reference Value for Satellite Radio
Tuner .......................................................................
20
Trouble Diagnosis ...................................................20
Noise Inspection ......................................................21
Power Supply Circuit Inspection .............................22
Satellite Radio Tuner (Factory Installed) Power
and Ground Supply Circuit Inspection .....................
23
Satellite Radio Tuner (Factory Installed) Commu-
nication Circuit Inspection .......................................
24
Satellite Radio Tuner (Factory Installed) Left
Channel Audio Signal Circuit Inspection .................
26
Satellite Radio Tuner (Factory Installed) Right
Channel Audio Signal Circuit Inspection .................
26
Steering Switch Check (With Bluetooth) ..................27
Sound Is Not Heard from Front Door Speaker
(Base System) .........................................................
29
Sound Is Not Heard from Rear Door Speaker
(Base System) .........................................................
30
Sound Is Not Heard from Front Door Speaker or
Tweeter (Mid Level and Premium System) .............
31
Sound Is Not Heard from Rear Door Speaker (Mid
Level and Premium System) ...................................
32
Sound Is Not Heard from Subwoofer (Premium
System) ...................................................................
34
Removal and Installation .........................................36
AUDIO ANTENNA .............................................41
Location of Antenna .................................................41
Removal and Installation of Roof Antenna ..............41
TELEPHONE .....................................................43
Component Parts and Harness Connector Loca-
tion ...........................................................................
43
System Description ..................................................43
Wiring Diagram - H/PHON - ....................................45
Bluetooth Control Unit Harness Connector Termi-
nal Layout ................................................................
47
Terminal and Reference Value for Bluetooth Con-
trol Unit ....................................................................
47
Bluetooth Control Unit Self-Diagnosis Function ......48
Workflow ..................................................................49
Power Supply and Ground Circuit Inspection for
Bluetooth Control Unit .............................................
49
Basic Inspection of Hands-Free Phone ...................50
Steering Wheel Audio Control Switch Does Not
Operate ....................................................................
51
Voice Activated Control Function Does Not Oper-
ate ............................................................................
52
Removal and Installation .........................................54

AUDIO
AV-5
< SERVICE INFORMATION >
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• to audio unit terminal 21 (with premium system)
• through body grounds M57 and M61 and
• to subwoofer terminal 3 (with premium system)
• through body grounds B7 and B19.
Then audio signals are supplied
• through audio unit terminals 2, 3, 4, 5, 11, 12, 13, and 14
• to terminals + and - of front door speaker LH and RH and
• to terminals + and - of tweeter LH and RH and
• to terminals + and - of rear door speaker LH and RH and
• to terminals 2 and 6 of subwoofer (with premium system).
Steering Wheel Audio Control Switches (with Bluetooth)
When one of steering wheel audio control switches is pushed, the resistance in steering switch circuit changes
depending on which button is pushed.
Satellite Radio Tuner (Pre-wiring)
The satellite radio tuner pre-wiring allows connection of a satellite radio tuner.
Power is supplied at all times
• through 20A fuse (No. 27, located in the fuse and fusible link box)
• to satellite radio tuner pre-wiring terminal 32.
With the ignition switch in the ACC or ON position, power is supplied
• through 10A fuse (No. 20, located in the fuse and fusible link box)
• to satellite radio tuner pre-wiring terminal 36.
Then audio signals are supplied
• through satellite radio tuner pre-wiring terminals 21, 22, 23 and 24
• to audio unit terminals 41, 42, 43 and 44.
Satellite Radio Tuner (Factory Installed)
Power is supplied at all times
• through 20A fuse (No. 27, located in the fuse and fusible link box)
• to satellite radio tuner terminal 32.
With the ignition switch in the ACC or ON position, power is supplied
• through 10A fuse (No. 20, located in the fuse and fusible link box)
• to satellite radio tuner terminal 36.
Ground is supplied through the case of the satellite radio tuner.
Then audio signals are supplied
• through satellite radio tuner terminals 21, 22, 23 and 24
• to audio unit terminals 41, 42, 43 and 44.
Ground is supplied through the case of the satellite radio tuner.
SPEED SENSITIVE VOLUME SYSTEM (MID LEVEL AND PREMIUM SYSTEM)
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control
level can be selected by the customer. Refer to Owner's Manual for operating instructions.

AUDIO
AV-17
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13 (LG) 14 (GR)Audio sound
signal rear
RHOutput ONReceive audio
signalNo sound from
rear door speaker
RH or subwoofer
RH.
15 (B)*2 –Remote
control
groundInput – – –Steering wheel au-
dio controls do not
function
16 (P)*2 GroundRemote
control BInput ONPress Phone/
Send switch0V
Steering wheel au-
dio controls do not
function Press SEEK
DOWN switch1.7V
Press VOL
DOWN switch3.3V
Except for
above5.0V
18 (SB) GroundVehicle
speed signal
(8–pulse)Input ONWhen vehicle
speed is approx.
40 km/h (25
MPH)Speed sensitive
volume is inopera-
tive.
19 (BR) GroundBattery pow-
erInput – – Battery voltageSubwoofer will not
work properly.
21 (B)*2 GroundEQ selec-
tion–ON –0V (with mid level)
12V (with premium)Wrong EQ will
cause sub woofer
to be inoperative
22*1 – Shield – – – – –
26 (R)*1 24 (G)Audio sig-
nal sub-
wooferInput – – Audio signalSubwoofer will not
work properly.
28
(BR)*1GroundSubwoofer
amp. ON
signalOutput ON – 12VSubwoofer will not
work properly.
27 (O)*2 –Bluetooth
ONOutput ONAudio unit sends
power signal to
Bluetooth con-
trol unit– Mute inoperative
31
(LG)*233 (V)*2 Audio out OutputACC/
ONAudio unit re-
ceives audio
signal from
Bluetooth con-
trol unitBluetooth can not
be heard.
35*2 – Shield – – – – –Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
(Approx.)Example of symp-
tom
+–Ignition
switchOperation
SKIA0177E
PKIC0643E
SKIB3609E

AV-18
< SERVICE INFORMATION >
AUDIO
*1: With premium system
*2: With Bluetooth42 (R) 41 (G)Audio left
channel
sound signal
from satel-
lite radio
tunerInput ONReceive audio
signalNo sound from sat-
ellite radio tuner
left channel.
44 (B) 43 (W)Audio right
channel
sound signal
from satel-
lite radio
tunerInput ONReceive audio
signalNo sound from sat-
ellite radio tuner
right channel.
45 –Shield
ground (au-
dio signal)–– – 0V –
46 –Shield
ground (da-
ta)–– – 0V –
48 (B) GroundSatellite ra-
dio tuner re-
quest to
audio unitInput ONTurn audio unit
ON 5VSatellite radio tun-
er does not oper-
ate properly.
49 (L) Ground Audio RX Input ONOperate audio
volume Satellite radio tun-
er audio informa-
tion does not
display properly.
50 (Y) Ground Audio TX Output ONOperate audio
volume Satellite radio tun-
er audio informa-
tion does not
display properly. Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
(Approx.)Example of symp-
tom
+–Ignition
switchOperation
SKIA0177E
SKIA0177E
SKIA4403E
SKIA4402E

AUDIO
AV-27
< SERVICE INFORMATION >
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4. Check continuity between satellite radio tuner (factory installed)
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2.CHECK RIGHT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed)
connector B30 terminals 23 and 24 with CONSULT-lIl or oscillo-
scope.
OK or NG
OK >> Replace audio unit. Refer to AV-36, "Removal and
Installation" .
NG >> Replace satellite radio tuner. Refer to AV-36, "
Removal
and Installation" .
Steering Switch Check (With Bluetooth)INFOID:0000000001704668
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.
4. Check continuity between Bluetooth control unit and ground.
Te r m i n a l s
Continuity Satellite radio tuner Audio unit
Connector Terminal Connector Terminal
A: B3023
B: M4543
Ye s
24 44
Te r m i n a l s
Continuity Satellite radio tuner
—
Connector Terminal
A: B3023
Ground No
24
WKIA4549E
23 - 24 : Refer to AV-20, "Terminal
and Reference Value for Sat-
ellite Radio Tuner" .
WKIA4550E
Te r m i n a l s
Continuity AB
Connector Terminal Connector Terminal
B12112
M3024
Ye s 13 32
14 31
WKIA5348E

AV-28
< SERVICE INFORMATION >
AUDIO
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
2.CHECK HARNESS
1. Disconnect audio unit connector.
2. Check continuity between audio unit (A) connector M43 terminals 6, 15, and 16 and Bluetooth control unit
(B) connector B121 terminals 17, 19, and 18.
OK or NG
OK >> GO TO 4.
NG >> Repair harness.
3.SPIRAL CABLE CHECK
1. Disconnect spiral cable connector M102.
2. Check continuity between spiral cable terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace spiral cable. Refer to SRS-36, "
Removal and
Installation" .
4.CHECK STEERING SWITCH RESISTANCE
Check resistance between spiral cable connector M102 terminals.
OK or NG
Te r m i n a l s
Continuity (+)
(–)
Connector Terminal
B12112
Ground No 13
14
Te r m i n a l s
Continuity (A) (B)
Connector Terminal Connector Terminal
M436
B12117
Ye s 15 19
16 18
WKIA5349E
16 - 32 : Continuity should exist.
17 - 31 : Continuity should exist.
20 - 24 : Continuity should exist.
WKIA4424E
Terminal Signal name ConditionResistance
(Ω)
(Approx.)
16 17Seek (down) Depress Seek down switch. 165
Phone/Send Depress Phone/Send switch. 0
Volume (down) Depress volume down switch. 487
20 17Seek (up) Depress Seek up switch. 165
Phone/End Depress Phone/End switch. 0
Volume (up) Depress volume up switch. 487
LKIA0191E

TELEPHONE
AV-43
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TELEPHONE
Component Parts and Harness Connector LocationINFOID:0000000001704677
System DescriptionINFOID:0000000001704678
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 Bluetooth 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-
WKIA6000E
1. Audio unit M43, M44, M45 2. Steering wheel audio control
switches3. Bluetooth microphone R15
4. Bluetooth ON indicator 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)

AV-44
< SERVICE INFORMATION >
TELEPHONE
tooth cellular telephones may not be recognized by the Bluetooth control unit. When a cellular telephone or
the Bluetooth control unit is replaced, the telephone must 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.
During this time the Bluetooth ON indicator will flash until initialization is complete. If a phone is present in the
vehicle and paired with the Bluetooth control unit, NISSAN Voice Recognition will then become active and the
Bluetooth ON indicator will remain on. Bluetooth telephone functions can be turned off using the NISSAN
Voice Recognition system. For Bluetooth control unit location, refer to AV-43, "
Component Parts and Harness
Connector Location".
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 can be actively tested during self-diagnosis. For Blue-
tooth microphone location, refer to AV-43, "
Component Parts and Harness Connector Location".
Bluetooth ON Indicator
The Bluetooth ON indicator is located in the overhead console. The indicator will flash during power up while
the Bluetooth control unit is initializing. This process may take up to 10 seconds. If a phone is present in the
vehicle and paired with the Bluetooth control unit, the indicator will remain on to indicate that the system is
ready for voice commands. The indicator flashes during self-diagnosis. For Bluetooth ON indicator location,
refer to AV-43, "
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.
WKIA6001E