Nissan Sentra. Manual — part 22
AV-80
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO WITHOUT BOSE]
DIAGNOSIS SYSTEM (AUDIO UNIT)
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Speaker Test
Select Speaker Test to display the Speaker Diagnosis screen. Press
Start to generate a test tone in a speaker. Press Start again to gener-
ate a test tone in the next speaker. Press End to stop the test tones.
Error History
The self diagnosis results are judged depending on whether any error occurs from when Self Diagnosis is
selected until the self diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned
ON and then no error has occurred until the self diagnosis start. Check the Error Record to detect any error
that may have occurred before the self diagnosis start because of this situation.
The frequency of occurrence is displayed in a count up manner. The actual count up method differs depending
on the error item.
Count up method A
• The counter is set to 40 if an error occurs. 1 is subtracted from the counter if the condition is normal at a next
ignition ON cycle.
• The counter lower limit is 1. The counter can be reset (no error record display) with the Delete log switch.
Count up method B
• The counter increases by 1 if an error occurs when ignition switch is ON. The counter will not decrease even
if the condition is normal at the next ignition ON cycle.
• The counter upper limit is 50. Any counts exceeding 50 are ignored. The counter can be reset (no error
record display) with the Delete log switch.
Error item
Some error items may be displayed simultaneously according to the cause. If some error items are displayed
simultaneously, the detection of the cause can be performed by the combination of display items
AWNIA2633GB
AWNIA2634GB
Display type of occurrence
frequency
Error history display item
Count up method A
AV communication line, control unit (AV)
Count up method B
Other than the above
AV
DIAGNOSIS SYSTEM (AUDIO UNIT)
AV-81
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO WITHOUT BOSE]
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AV COMM Diagnosis
• Displays the communication status between audio unit (master
unit) and Bluetooth
®
control unit.
• The error counter displays OK if any malfunction was not detected
in the past and displays 0 if a malfunction is detected. It increases
by 1 if the condition is normal at the next ignition switch ON cycle.
The upper limit of the counter is 39.
• The error counter is erased if Reset is pressed.
NOTE:
“???” indicates UNKWN.
Delete Unit Connection Log
Deletes any unit connection records and error records from the
audio unit memory (clears the records of the unit that has been
removed).
Initialize Settings
Deletes data stored from the audio unit.
Error item
Description
Possible cause
CONTROL UNIT (AV)
AV communication circuit initial diagnosis
malfunction is detected.
Replace the audio unit if the malfunction
occurs constantly.
Refer to
AV-122, "Removal and Installation"
AV COMM CIRCUIT
When one of the following is detected:
• malfunction is detected in Bluetooth
®
control unit power supply and ground cir-
cuits.
• malfunction is detected in AV communi-
cation circuits between audio unit and
Bluetooth
®
control unit.
• Bluetooth
®
control unit power supply or
ground circuits.
Refer to
TROL UNIT : Diagnosis Procedure"
• AV communication circuits between au-
dio unit and Bluetooth
®
control unit.
Items
Status
(Current)
Counter
(Past)
BUS OFF
OK / ???
OK / 0 – 39
C Rx(BTHF-H/U)
OK / ???
OK / 0 – 39
AWNIA2833GB
AWNIA2637GB
JSNIA0155GB
AV-82
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO WITHOUT BOSE]
DIAGNOSIS SYSTEM (BLUETOOTH® CONTROL UNIT)
DIAGNOSIS SYSTEM (BLUETOOTH® CONTROL UNIT)
Diagnosis Description
INFOID:0000000009758845
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 [
(PHONE/SEND), (PHONE/END)] stuck closed
• Vehicle speed pulse count
• Microphone connection test (with playback to operator)
• Bluetooth
®
inquiry check
OPERATION PROCEDURE
1. Turn ignition switch to ACC or ON.
2. Wait for the Bluetooth
®
system to complete initialization. This may take up to 20 seconds.
3. Press and hold the steering wheel audio control switch
(PHONE/SEND) button for at least 5 seconds. The Bluetooth
®
system will begin to play a verbal prompt.
4. While the prompt is playing, press and hold the steering wheel
audio control switch
(PHONE/END) button until you hear the
“Diagnostics mode” prompt. The Bluetooth
®
system will sound a
5-second beep.
5. While the beep is sounding, press and hold the steering wheel
audio control switch
(PHONE/END) button again until you
hear prompts.
6. The Bluetooth
®
system has now entered into the diagnostic
mode. Results of the diagnostic checks will be verbalized to the
technician. Refer to
7. After the failure records are reported, an interactive microphone
test will be performed. Follow the voice prompt. If the micro-
phone test fails, refer to
Work Flow
INFOID:0000000009758846
AWNIA2834ZZ
AWNIA2835ZZ
Failure Message
Action
“Internal failure”
Replace Bluetooth
®
AV-134, "Removal and Installation"
“Bluetooth
®
antenna open”
1.
Inspect harness connection.
2.
Replace Bluetooth
®
antenna. Refer to
AV-134, "Removal and Installation"
.
“Bluetooth
®
antenna shorted”
“Phone/Send for Hands Free System is stuck”
Check steering wheel audio control switches. Refer to
.
“Phone/End for the Hands Free System is stuck”
“Microphone test” (failed interactive test)
1.
Inspect harness between Bluetooth
®
control unit and microphone.
2.
Replace microphone. Refer to
AV
AUDIO UNIT
AV-83
< ECU DIAGNOSIS INFORMATION >
[DISPLAY AUDIO WITHOUT BOSE]
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ECU DIAGNOSIS INFORMATION
AUDIO UNIT
Reference Value
INFOID:0000000009758847
TERMINAL LAYOUT
PHYSICAL VALUES
AWNIA2820ZZ
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
Ignition
switch
Operation
2
(L)
3
(P)
Sound signal front speaker
LH
Output
ON
Sound output
4
(LG)
5
(W)
Sound signal rear speaker
LH
Output
ON
Sound output
6
(G)
15
(P)
Steering switch signal A
Input
Ignition
switch
ON
Press SOURCE switch
0V
Press
switch
1.0V
Press
switch
2.0V
Press
switch
3.0V
Except above
5.0V
7
(P)
Ground ACC power supply
Input
ACC
—
Battery voltage
9
(R)
8
(GR)
Illumination control signal
Input
ON
Headlamps ON
Battery voltage
SKIB3609E
SKIB3609E
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