2007 NISSAN LATIO audio

AV-18
AUDIO
Revision: June 20062007 Versa
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
audio controls do
not function
16 (P)*2 GroundRemote
control BInput ONPress Phone/
Send switch0V
Steering wheel
audio controls do
not function Press SEEK
DOWN switch1.7V
Press VOL
DOWN switch3.3V
Except for
above5.0V
18 (SB) GroundVehicle
speed sig-
nal (8–
pulse)Input ONWhen vehicle
speed is
approx. 40 km/h
(25 MPH)Speed sensitive
volume is inopera-
tive.
19 (BR) GroundBattery
powerInput – – 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 Blue-
tooth control
unit– Mute inoperative
31
(LG)*233 (V)*2 Audio out OutputACC/
ONAudio unit
receives 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

AUDIO
AV-19
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AV
Revision: June 20062007 Versa
*1: With premium system
*2: With Bluetooth42 (R) 41 (G)Audio left
channel
sound sig-
nal from sat-
ellite radio
tunerInput ONReceive audio
signalNo sound from
satellite radio
tuner left channel.
44 (B) 43 (W)Audio right
channel
sound sig-
nal from sat-
ellite radio
tunerInput ONReceive audio
signalNo sound from
satellite radio
tuner right chan-
nel.
45 –Shield
ground
(audio sig-
nal)–– – 0V –
46 –Shield
ground
(data)–– – 0V –
48 (B) GroundSatellite
radio tuner
request to
audio unitInput ONTurn audio unit
ON 5VSatellite radio
tuner does not
operate properly.
49 (L) Ground Audio RX Input ONOperate audio
volume Satellite radio
tuner audio infor-
mation does not
display properly.
50 (Y) Ground Audio TX Output ONOperate audio
volume Satellite radio
tuner audio infor-
mation 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

AV-20
AUDIO
Revision: June 20062007 Versa
Subwoofer Harness Connector Terminal Layout (Premium Audio System)EKS00IAT
Terminals and Reference Value for Subwoofer (Premium Audio System)EKS00IAU
WKIA5441E
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
(Approx.)
+–Ignition
switchOperation
1 (R) Ground Battery power supply Intput OFF – Battery voltage
2 (O/L) 6 (W/L)Audio signal sub-
wooferIntput ON Receive audio signal
3 (B) Ground Ground – ON – 0 V
4 (LG) GroundSubwoofer amp. ON
signalInput ON – Battery voltage
5 – Shield – – – –
SKIB3609E

AUDIO
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AV
Revision: June 20062007 Versa
Satellite Radio Tuner Harness Connector Terminal LayoutEKS00I9R
Terminals and Reference Value for Satellite Radio TunerEKS00I9S
LKIA0735E
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Voltage
(Approx.)
+–Ignition
switchOperation
22 (R) 21 (G) Audio signal LH Output ON Receive audio signal.
24 (B) 23 (W) Audio signal RH Output ON Receive audio signal.
25 – Shield – – – –
26 – Data ground ON 0V
28 (B) GroundREQ1
(SAT-AUDIO)Output ONSet to the satellite radio
mode
29 (R/L) GroundCommunication signal
(SAT-AUDIO)Output ONSet to the satellite radio
mode
30 (R/W) GroundCommunication signal
(AUDIO-SAT)Input ONSet to the satellite radio
mode
SKIB3609E
SKIB3609E
SKIB3825E
SKIB3824E
SKIB3826E

AV-22
AUDIO
Revision: June 20062007 Versa
32 (R)
GroundBattery power supply
InputOFF
−Battery voltage
36 (L) ACC power supply ACC
37 – Antenna signal – – –Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Voltage
(Approx.)
+–Ignition
switchOperation

AUDIO
AV-23
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AV
Revision: June 20062007 Versa
Trouble DiagnosisEKS00I4F
NOTE:
The subwoofer (premium system) may be inoperative if the audio unit harness connectors have not been con-
nected in the proper sequence (when the battery remains connected). The proper sequence is to connect M44
and M45 first followed by M43 last. If the subwoofer is inoperative, be sure to check this condition. Refer to AV-
40, "Sound Is Not Heard From Subwoofer (Premium System)" .

The majority of the audio malfunctions are the result of outside causes (damaged CD, electromagnetic
interference, 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 malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.
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 that reflect off of mountains or buildings.
Noise InspectionEKS00I9T
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.
Symptom Check item
Audio system does not work properly.

Audio unit power supply circuit. Refer to AV- 2 4 , "Power Supply
Circuit Inspection" .

Audio unit. Refer to AV- 2 3 , "Trouble Diagnosis" .
No sound can be heard from all speakers. Audio unit. Refer to AV- 2 3 , "
Trouble Diagnosis" .
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- 3 2 , "
Sound Is Not Heard From Front
Door Speaker (Base System)" or AV- 3 6 , "Sound Is Not Heard
From Front Door Speaker or Tweeter (Mid Level and Premium
System)" .

Front speaker. Refer to AV- 3 2 , "Sound Is Not Heard From Front
Door Speaker (Base System)" or AV- 3 6 , "Sound Is Not Heard
From Front Door Speaker or Tweeter (Mid Level and Premium
System)" .

Open or short in audio signal circuit between audio unit and
rear speaker. Refer to AV - 3 4 , "
Sound Is Not Heard From Rear
Door Speaker (Base System)" or AV- 3 8 , "Sound Is Not Heard
From Rear Door Speaker (Mid Level and Premium System)" .

Rear speaker. Refer to AV- 3 4 , "Sound Is Not Heard From Rear
Door Speaker (Base System)" or AV- 3 8 , "Sound Is Not Heard
From Rear Door Speaker (Mid Level and Premium System)" .

Tweeter (mid level and premium system) AV- 3 6 , "Sound Is Not
Heard From Front Door Speaker or Tweeter (Mid Level and
Premium System)" or AV-38, "Sound Is Not Heard From Rear
Door Speaker (Mid Level and Premium System)" .

Subwoofer (premium system). Refer to AV-40, "Sound Is Not
Heard From Subwoofer (Premium System)" .

Audio unit. Refer to AV- 2 4 , "Power Supply Circuit Inspection" .
No sound can be heard from radio or noise is heard.

Antenna feeder. Refer to AV- 4 8 , "AUDIO ANTENNA" .

Antenna. Refer to AV- 4 8 , "AUDIO ANTENNA" .

Audio unit. Refer to AV- 2 4 , "Power Supply Circuit Inspection" .

AV-24
AUDIO
Revision: June 20062007 Versa
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
Power Supply Circuit InspectionEKS00I9U
1. CHECK FUSE
Check that the following fuses of the subwoofer (premium system) and 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, "POWER SUPPLY ROUTING CIRCUIT" .
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.
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
operation 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
Unit Terminals Signal name Fuse No.
Audio unit19 Battery power 27
7 Ignition switch ACC or ON 20
Subwoofer (with premium audio) 1 Ignition switch ACC or ON 27
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
Connector Terminal
Audio unit M4319 GroundBattery
voltageBattery
voltageBattery
voltage
7 Ground 0VBattery
voltageBattery
voltage
WKIA5345E

AUDIO
AV-25
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AV
Revision: June 20062007 Versa
3. SUBWOOFER (PREMIUM SYSTEM) POWER SUPPLY CIRCUIT CHECK
1. Disconnect subwoofer connector.
2. Check voltage between subwoofer (premium system) and
ground.
OK or NG
OK >> GO TO 4.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
4. GROUND CIRCUIT CHECK
Check continuity between subwoofer (premium system) harness
connector B29 terminal 3 and ground.
OK or NG
OK >> Inspection End.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit
Inspection
EKS00I9V
1. CHECK FUSES
Check that the following fuses 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, "POWER SUPPLY ROUTING CIRCUIT" .
UnitTerminal No.
OFF ACC ON (+)
(-)
Connector Terminal
Sub-
wooferB29 1 Ground 0VBattery
voltageBattery
voltage
WKIA5442E
Continuity should exist.
WKIA5443E
Unit Terminals Signal name Fuse No.
Satellite radio tuner (factory
installed)32 Battery power 27
36 Ignition switch ACC or ON 20