2008 NISSAN LATIO ignition

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

TELEPHONE
AV-47
< SERVICE INFORMATION >
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Bluetooth Control Unit Harness Connector Terminal LayoutINFOID:0000000001704680
Terminal and Reference Value for Bluetooth Control UnitINFOID:0000000001704681
LKIA0753E
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
(Approx.)Example of symptom
+–Ignition
switchOperation
1 (R) GroundBattery pow-
erInput – – Battery voltageSystem does not
work properly.
2 (L) Ground ACC power InputACC/
ON– Battery voltageSystem does not
work properly.
3 (LG) Ground IGN power InputON/
START– Battery voltageSystem does not
work properly.
4 (B) – Ground – – – – –
6 – Shield – – – – –
7 (R/W) 8 (R/L) Mic-in signal Input – – –Bluetooth Micro-
phone inoperative.
9 (LG) 10 (V) Audio out OutputACC/
ONBluetooth control
unit sends audio
signalAudio can not be
heard.
11(O) – Mute Output – – 5V Mute inoperative.
12 (W) GroundRemote
control
switch 1InputACC/
ONPress MODE
switch 0V
Steering wheel audio
control switches do
not function. Press SEEK UP
switch0.75V
Press VOL UP
switch2V
Except for above 5V
13 (L) GroundRemote
control
switch 2InputACC/
ONPress POWER
switch 0V
Steering wheel audio
control switches do
not function. Press SEEK
DOWN switch0.75V
Press VOL
DOWN switch2V
Except for above 5V
14 (B) –Remote
control
groundInput – – –Steering wheel audio
control switches do
not function.
SKIB3609E

AV-48
< SERVICE INFORMATION >
TELEPHONE
Bluetooth Control Unit Self-Diagnosis Function
INFOID:0000000001704682
The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically
every ignition cycle during control unit initialization. The second diagnostic check is performed by the techni-
cian using the steering wheel audio control switches prior to trouble diagnosis.
BLUETOOTH CONTROL UNIT INITIALIZATION CHECKS
• Internal control unit failure
• Bluetooth antenna connection open or shorted
• Steering wheel audio control switches (SEND/END) stuck closed
• Vehicle speed pulse count
• Bluetooth Microphone connection test (with playback to operator)
• Bluetooth inquiry check
SELF-DIAGNOSIS MODE
15 (G) GroundBluetooth
ON indicator
LEDOutput –Bluetooth control
unit initialized
and paired with
phoneBattery voltageBluetooth ON indica-
tor inoperative.
17 (GR) GroundAudio unit
switch 1OutputACC/
ONPress Phone/End
switch 0V
Steering wheel audio
controls do not func-
tion. Press SEEK UP
switch0.75V
Press VOL UP
switch2V
Except for above 5V
18 (P) GroundAudio unit
switch 2OutputACC/
ONPress Phone/
Send switch 0V
Steering wheel audio
controls do not func-
tion. Press SEEK
DOWN switch0.75V
Press VOL
DOWN switch2V
Except for above 5V
19 (B) GroundAudio unit
switch
groundOutput – – –Steering wheel audio
controls do not func-
tion.
20 (B) – Cont-1 – – – – –
21 (B) – Cont-2 – – – – –
23 (B) – Cont-4 – – – – –
28 (O) GroundVehicle
speed signal
(8–pulse)Input ONWhen vehicle
speed is approx.
40 km/h (25
MPH)Speed sensitive vol-
ume is inoperative.
29 (B) GroundBluetooth
Microphone
powerOutput – – 5VBluetooth Micro-
phone inoperative.
33 –Bluetooth
antenna sig-
nalInput – – – – Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
(Approx.)Example of symptom
+–Ignition
switchOperation
PKIC0643E

TELEPHONE
AV-49
< SERVICE INFORMATION >
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1. Turn ignition switch to ACC or ON.
2. Wait for the Bluetooth system to complete initialization and the Bluetooth ON indicator to stop flashing.
This may take up to 10 seconds.
3. Press and hold the steering wheel audio control switch SEND
button for at least 5 seconds. The Bluetooth system will begin to
play a verbal prompt.
4. While the prompt is playing, momentarily press both the steering
wheel audio control switches SEND and END buttons simulta-
neously. The Bluetooth system will sound a 5 second beep.
5. While the beep is sounding, momentarily press both the steering
wheel audio control switches SEND and END buttons simulta-
neously again.
6. The Bluetooth system has now entered into the diagnostic
mode. Results of the diagnostic checks will be verbalized to the
technician and the Bluetooth ON indicator will flash. Refer to AV-
49, "Workflow".
7. If there are no failure records to report, the speed pulse count
will be reported next.
8. After the speed pulse count is reported, an interactive Bluetooth microphone test will be performed. Follow
the voice prompt. If the Bluetooth microphone test fails refer to AV-49, "
Workflow".
9. Self-diagnosis mode is complete when the voice prompt says "All diagnostic functions completed". A short
beep is heard.
WorkflowINFOID:0000000001704683
Power Supply and Ground Circuit Inspection for Bluetooth Control UnitINFOID:0000000001704684
1.CHECK FUSES
Make sure the following fuses for the Bluetooth control unit are not blown.
WKIA6003E
WKIA6004E
Flashing Pattern
(Bluetooth ON indicator)Failure Message Action
1 "Internal failure"Replace Bluetooth control unit. Refer to AV-
54, "Removal and Installation".
2 "Bluetooth antenna open" 1. Inspect harness connection.
2. Replace Bluetooth antenna. Refer to
AV- 5 4 , "
Removal and Installation". 3 "Bluetooth antenna shorted"
4"Phone/Send for the Hands Free Phone
System is stuck"Check steering wheel audio control switch-
es. Refer to AV- 2 7 , "
Steering Switch Check
(With Bluetooth)".
5"Phone/End for the Hands Free Phone
System is stuck"
–"Bluetooth Microphone test" (failed interac-
tive test)1. Inspect harness between Bluetooth
control unit and Bluetooth micro-
phone.
2. Replace Bluetooth microphone. Refer
to AV- 5 4 , "
Removal and Installation".

AV-50
< SERVICE INFORMATION >
TELEPHONE
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect Bluetooth control unit connector B121.
2. Check voltage between connector terminals and ground as fol-
lows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between Bluetooth control unit and fuse.
3.CHECK GROUND CIRCUITS
1. Turn ignition switch OFF.
2. Check continuity between the following Bluetooth control unit
terminals and ground.
OK or NG
OK >> Inspection End.
NG >> Repair or replace harness.
Basic Inspection of Hands-Free PhoneINFOID:0000000001704685
1.CHECK INDICATOR OPERATION
1. Turn ignition switch ACC.
2. Check that the indicator is blinking.
OK or NG
OK >> GO TO 2
NG >> GO TO 3
2.CHECK STEERING WHEEL AUDIO CONTROL SWITCH OPERATION
Te r m i n a l s
Ignition Switch Fuse No.
Connector Terminal
B1211 All positions 27
2 ACC/ON 20
3 ON/START 3
Terminals Ignition switch position
(+)
(–) OFF ACC ON
Connector Terminal
B1211
GroundBattery
voltageBattery
voltageBattery
voltage
20VBattery
voltageBattery
voltage
30V0VBattery
voltage
WKIA4389E
Te r m i n a l s
Continuity
Connector Terminal —
B1214
Ground Yes 20
21
23
LKIA0794E

TELEPHONE
AV-51
< SERVICE INFORMATION >
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1. Press the SEND switch.
2. Check the indicator is blinking.
OK or NG
OK >> INSPECTION END
NG >> Check steering wheel audio control switch circuit.
3.CHECK BLUETOOTH INDICATOR OUTPUT VOLTAGE
1. Disconnect Bluetooth microphone connector.
2. Check voltage between Bluetooth microphone connector R15
terminal 4 and ground.
OK or NO
OK >> Replace Bluetooth indicator. Refer to AV-54, "Removal
and Installation".
NG >> GO TO 4.
4.CHECK BLUETOOTH INDICATOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector B121 and Bluetooth microphone connector R15.
3. Check continuity between Bluetooth control unit connector B121
(A) terminal 15 and Bluetooth microphone connector R15 (B)
terminal 4.
OK or NO
OK >> Replace Bluetooth control unit. Refer to AV-54,
"Removal and Installation".
NG >> Repair or replace harness.
Steering Wheel Audio Control Switch Does Not OperateINFOID:0000000001704686
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect steering wheel audio control switch connector.
3. Check steering wheel audio control switch. Refer to AV-27, "
Steering Switch Check (With Bluetooth)".
OK or NG
OK >> GO TO 2.
NG >> Replace steering wheel audio control switch. AV-36, "
Removal and Installation".
2.CHECK AUDIO UNIT
1. Turn ignition switch ON.
2. Check voltage between audio unit harness connector M43 ter-
minals 6, 16 and ground.
OK or NG
OK >> Replace audio unit. Refer to AV-36, "Removal and
Installation".
NG >> GO TO 5.4 - Ground : Approx. 12 V
LKIA0774E
15 - 4 : Continuity should exist
LKIA0775E
6 - Ground : Approx. 5 V
16 - Ground : Approx. 5 V
LKIA0776E

AV-52
< SERVICE INFORMATION >
TELEPHONE
3.CHECK BLUETOOTH CONTROL UNIT
1. Turn ignition switch ON.
2. Check voltage between Bluetooth control unit harness connec-
tor B121 terminals 17, 18 and ground.
OK or NG
OK >> Repair or replace harness.
NG >> Replace Bluetooth control unit. AV-54, "
Removal and
Installation".
Voice Activated Control Function Does Not OperateINFOID:0000000001704687
NOTE:
Even under the normal condition, Bluetooth voice guidance may not occur when pressing steering wheel
audio control switch.
BLUETOOTH VOICE GUIDANCE IS HEARD WHEN PRESSING STEERING WHEEL AUDIO CON-
TROL SWITCH
1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL 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.17 - Ground : Approx. 5 V
18 - Ground : Approx. 5 V
LKIA0777E
Te r m i n a l s
Continuity
Connector Terminal Connector Terminal
A: B1216
B: R156
Ye s 78
87
29 5
Te r m i n a l s
Continuity
Connector Terminal —
A: B1217
Ground No 8
29
LKIA0778E

TELEPHONE
AV-53
< SERVICE INFORMATION >
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3. Check voltage between Bluetooth microphone connector R15
terminal 5 and ground.
YES or NO
YES >> GO TO 3.
NO >> Replace Bluetooth control unit. Refer to AV-54,
"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-54, "Removal and Installation".
NG >> Replace Bluetooth microphone. Refer to AV-54, "
Removal and Installation".
BLUETOOTH VOICE GUIDANCE IS NOT HEARD WHEN PRESSING STEERING WHEEL AUDIO
CONTROL SWITCH
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH CIRCUIT
Refer to AV-27, "
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 unit 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.5 - Ground : Approx. 5 V
LKIA0779E
7 – 8:When giving a voice
LKIA0780EPKIB5037J
Te r m i n a l s
Continuity
Connector Terminal Connector Terminal
A: B1219
B: M4431
Ye s 10 33
11 2 7
LKIA0781E