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AUDIO
Power Supply Circuit Inspection
INFOID:0000000005931286
1.CHECK FUSE
Check that the following fuses of the audio unit are not blown.
OK or NISSAN LATIO 2011 Service Repair Manual AV-22
< SERVICE INFORMATION >[AUDIO WITHOUT NAVIGATION]
AUDIO
Power Supply Circuit Inspection
INFOID:0000000005931286
1.CHECK FUSE
Check that the following fuses of the audio unit are not blown.
OK or](/manual-img/5/57357/w960_57357-418.png)
AV-22
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AUDIO
Power Supply Circuit Inspection
INFOID:0000000005931286
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, "Schematic" .
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:0000000005931287
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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AUDIO
OK or NG
OK >> Inspection End.
NG >> Replace steering switch. Refer to AV-29, "
Removal and Installation" .
Sound Is Not Heard fr
om Front NISSAN LATIO 2011 Service Repair Manual AV-24
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AUDIO
OK or NG
OK >> Inspection End.
NG >> Replace steering switch. Refer to AV-29, "
Removal and Installation" .
Sound Is Not Heard fr
om Front](/manual-img/5/57357/w960_57357-420.png)
AV-24
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AUDIO
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:0000000005931288
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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AUDIO
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 2011 Service Repair Manual AV-26
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AUDIO
1. Connect audio unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signa](/manual-img/5/57357/w960_57357-422.png)
AV-26
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AUDIO
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:0000000005931290
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
SKIA0177E
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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AV
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OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals. • Repai NISSAN LATIO 2011 Service Repair Manual AUDIOAV-27
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OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals. • Repai](/manual-img/5/57357/w960_57357-423.png)
AUDIOAV-27
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AV
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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:0000000005931291
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
WKIA5352E
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AUDIO
2. Check continuity between audio unit harness connector terminal
and speaker harness connector terminal.
3. Check continuity between audi NISSAN LATIO 2011 Service Repair Manual AV-28
< SERVICE INFORMATION >[AUDIO WITHOUT NAVIGATION]
AUDIO
2. Check continuity between audio unit harness connector terminal
and speaker harness connector terminal.
3. Check continuity between audi](/manual-img/5/57357/w960_57357-424.png)
AV-28
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AUDIO
2. Check continuity between audio unit harness connector terminal
and speaker harness 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
1. Connect audio unit connector and rear door 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" .
Te r m i n a l s
Continuity
Audio unit Speaker
Connector Terminal Connector Terminal
M43 4
D207 +
Ye s
5-
13 D307 +
14 -
Te r m i n a l s Continuity
Audio unit
—
Connector Terminal
M43 4
Ground No
5
13
14
WKIA5353E
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 5
M43 4
Re-
ceive
audio
signal
14
13
WKIA5354E
SKIA0177E
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TELEPHONE
tooth cellular telephones may not be recognized by t
he Bluetooth control unit. When a cellular telephone or
the Bluetooth control uni NISSAN LATIO 2011 Service Repair Manual AV-36
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TELEPHONE
tooth cellular telephones may not be recognized by t
he Bluetooth control unit. When a cellular telephone or
the Bluetooth control uni](/manual-img/5/57357/w960_57357-432.png)
AV-36
< SERVICE INFORMATION >[AUDIO WITHOUT NAVIGATION]
TELEPHONE
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.
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TELEPHONE
TROL SWITCH
1.CHECK HARNESS BETWEEN BLUETOOTH CONT
ROL UNIT AND BLUETOOTH MICROPHONE
1. Turn ignition switch OFF.
2. Disconnect Bluet NISSAN LATIO 2011 Service Repair Manual AV-44
< SERVICE INFORMATION >[AUDIO WITHOUT NAVIGATION]
TELEPHONE
TROL SWITCH
1.CHECK HARNESS BETWEEN BLUETOOTH CONT
ROL UNIT AND BLUETOOTH MICROPHONE
1. Turn ignition switch OFF.
2. Disconnect Bluet](/manual-img/5/57357/w960_57357-440.png)
AV-44
< SERVICE INFORMATION >[AUDIO WITHOUT NAVIGATION]
TELEPHONE
TROL SWITCH
1.CHECK HARNESS BETWEEN BLUETOOTH CONT
ROL UNIT AND BLUETOOTH MICROPHONE
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector and Bluetooth microphone connector.
3. Check continuity between Bluetooth control unit connector B121 (A) and Bluetooth microphone connector R15 (B).
4. Check continuity between Bluetooth control unit harness con- nector B121 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2.CHECK BLUETOOTH MICROPHONE POWER SUPPLY
1. Connect Bluetooth control unit connector and Bluetooth microphone connector.
2. Turn ignition switch ON.
3. Check voltage between Bluetooth microphone connector R15 terminal 4 and ground.
YES or NO
YES >> GO TO 3.
NO >> Replace Bluetooth control unit. Refer to AV-46,
"Removal and Installation".
3.CHECK MIC. SIGNAL
1. Check signal between Bluetooth control unit harness connector B121 terminals 7 and 8.
OK or NG
OK >> Replace Bluetooth control unit. Refer to AV-46, "Removal and Installation".
NG >> Replace Bluetooth microphone. Refer to AV-46, "
Removal and Installation".
Te r m i n a l s
Continuity
Connector Terminal Connector Terminal
A: B121 7
B: R15 1
Ye s
82
29 4
Te r m i n a l s Continuity
Connector Terminal —
A: B121 7
Ground No
8
29
WKIA5795E
4 - Ground : Approx. 5 V
WKIA5796E
7 – 8:When giving a voice
LKIA0780EPKIB5037J
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BLUETOOTH VOICE GUIDANCE IS NOT HEARD WHEN PRESSING STEERING WHEEL AUDIO
CONTROL SWITCH
1.CHECK STEER NISSAN LATIO 2011 Service Repair Manual TELEPHONEAV-45
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CONTROL SWITCH
1.CHECK STEER](/manual-img/5/57357/w960_57357-441.png)
TELEPHONEAV-45
< SERVICE INFORMATION > [AUDIO WITHOUT NAVIGATION]
C
D
E
F
G H
I
J
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M A
B
AV
N
O P
BLUETOOTH VOICE GUIDANCE IS NOT HEARD WHEN PRESSING STEERING WHEEL AUDIO
CONTROL SWITCH
1.CHECK STEERING WHEEL A UDIO CONTROL SWITCH CIRCUIT
Refer to AV-22, "
Steering Switch Check (With Bluetooth)".
OK or NG
OK >> GO TO 2.
NG >> Replace applicable parts.
2.CHECK BLUETOOTH VOICE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control uni t connector and audio unit connector.
3. Check continuity between Bluetooth control unit harness con- nector B121 (A) and audio unit harness connector M44 (B).
4. Check continuity between Bluetooth control unit harness con- nector B121 (A) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK MUTE SIGNAL
1. Connect Bluetooth control unit connector and audio unit connector.
2. Turn ignition switch ON.
3. Check voltage between Bluetooth control unit connector B121 terminal 11 and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace audio unit. Refer to AV-29, "
Removal and Instal-
lation".
4.CHECK BLUETOOTH VOICE SIGNAL
Te r m i n a l s
Continuity
Connector Terminal Connector Terminal
A: B121 9
B: M44 66
Ye s
10 67
11 6 4
Te r m i n a l s Continuity
Connector Terminal —
A: B121 9
Ground No
10
11
AWNIA2076ZZ
11 - Ground : Approx. 5 V
LKIA0782E
Revision: May 2010 2011 Versa