Nissan Titan A60. Manual — part 110
AV
MICROPHONE SIGNAL CIRCUIT
AV-265
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM WITH NAVIGATION]
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MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000006166620
Voice signals are transmitted from the microphone to the Bluetooth control unit using the microphone signal
circuits.
Diagnosis Procedure
INFOID:0000000006166621
Regarding Wiring Diagram information, refer to
AV-285, "Wiring Diagram - With Navigation System"
1.
CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector and microphone
connector.
3. Check continuity between Bluetooth control unit harness con-
nector B142 (A) and microphone harness connector R109 (B).
4. Check continuity between Bluetooth control unit harness connector B142 (A) and ground.
Are the continuity test results as specified?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK MICROPHONE POWER SUPPLY
1. Connect Bluetooth control unit connector and microphone con-
nector.
2. Turn ignition switch ON.
3. Check voltage between microphone harness connector R109
terminal 4 and ground.
Is voltage reading approx. 5 volts?
YES
>> GO TO 3.
NO
>> Replace Bluetooth control unit. Refer to
AV-343, "Removal and Installation"
3.
CHECK MICROPHONE SIGNAL
A
B
Continuity
Connector
Terminal
Connector
Terminal
B142
7
R109
1
Yes
8
2
29
4
A
—
Continuity
Connector
Terminal
B142
7
Ground
No
8
29
WKIA5795E
(+)
(-)
Voltage (approx.)
Connector
Terminal
R109
4
Ground
5V
WKIA5796E
AV-266
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM WITH NAVIGATION]
MICROPHONE SIGNAL CIRCUIT
Check signal between Bluetooth control unit harness connector
B142 terminals 7 and 8 with CONSULT-III or and oscilloscope.
Are voltage readings as specified?
YES
>> Replace Bluetooth control unit. Refer to
AV-343, "Removal and Installation"
NO
>> Replace microphone. Refer to
AV-341, "Removal and Installation"
.
Connector
(+)
(-)
Reference signal
Terminal
Terminal
B142
7
8
While speaking into MIC
AWNIA1620ZZ
PKIB5037J
AV
AUDIO UNIT
AV-267
< ECU DIAGNOSIS INFORMATION >
[PREMIUM WITH NAVIGATION]
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ECU DIAGNOSIS INFORMATION
AUDIO UNIT
Reference Value
INFOID:0000000006166622
TERMINAL LAYOUT
PHYSICAL VALUES
ALNIA0712GB
Terminal
(Wire color)
Item
Signal
input/
output
Condition
Reference value
(Approx.)
+
–
2
(W)
1
(B)
Audio sound signal
front LH
Output
Ignition
switch
ON
Receive audio sig-
nal
4
(Y)
3
(BR)
Audio sound signal
front RH
Output
Ignition
switch
ON
Receive audio sig-
nal
6
(Y)
Ground
Battery power
Input
–
–
Battery voltage
7
(BR)
Ground
Illumination control
signal
Input
Ignition
switch
ON
Illumination control
switch is operated
by lighting switch in
1st position.
Changes between 0 and 12V
8
(R/L)
Ground
Illumination signal
Input
OFF
Lighting switch is in
1st position.
Battery voltage
Lighting switch is
OFF.
0V
9
–
Shield
–
–
–
0V
10
(V)
Ground
ACC signal
Input
Ignition
switch
ON
–
Battery voltage
12
(G/W)
Ground
Amp ON
Input
Ignition
switch
ON
Audio unit ON
More than 6.5V
SKIA0177E
SKIA0177E
AV-268
< ECU DIAGNOSIS INFORMATION >
[PREMIUM WITH NAVIGATION]
AUDIO UNIT
14
(BR)
13
(B/R)
Audio sound signal
rear LH
Output
Ignition
switch
ON
Receive audio sig-
nal
16
(L)
15
(B/W)
Audio sound signal
rear RH
Output
Ignition
switch
ON
Receive audio sig-
nal
21
(V)
Ground
Remote control A
Output
Ignition
switch
ON
Audio unit ON
5V
22
(P)
Ground
Remote control B
Output
Ignition
switch
ON
Audio unit ON
5V
23
(BR/Y)
Ground
Remote control C
Output
Ignition
switch
ON
Audio unit ON
5V
24
(L)
Ground
Remote control D
Output
Ignition
switch
ON
Audio unit ON
5V
25
(LG)
Ground
Remote control
ground
–
–
–
0V
27
(O/L)
26
(O)
Audio sound signal
LH
Output
Ignition
switch
ON
Receive audio sig-
nal
29
(W)
28
(W/L)
Audio sound signal
RH
Output
Ignition
switch
ON
Receive audio sig-
nal
30 –
Shield
–
–
–
0V
31
(O)
Ground
Remote control en-
able signal
Output
Ignition
switch
ON
Audio unit ON
5V
32
(V)
Ground
Remote control
switch power sup-
ply
Output
Ignition
switch
ON
Audio unit ON
12V
Terminal
(Wire color)
Item
Signal
input/
output
Condition
Reference value
(Approx.)
+
–
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
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