Nissan Maxima. Manual — part 111
AV-264
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/O BOSE]
MICROPHONE SIGNAL CIRCUIT
MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000010064913
Voice signals are transmitted from the microphone to the Bluetooth
®
control unit using the microphone signal
circuits.
Diagnosis Procedure
INFOID:0000000010064914
Regarding Wiring Diagram information, refer to
AV-282, "Wiring Diagram - Without BOSE Audio System With-
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 B131 (A) and microphone harness connector R7 (B).
4. Check continuity between Bluetooth
®
control unit harness connector B131 (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 R7 ter-
minal 4 and ground.
Is voltage reading approx. 5 volts?
YES
>> GO TO 3.
NO
>> Replace Bluetooth
®
control unit. Refer to
AV-333, "Removal and Installation"
3.
CHECK MICROPHONE SIGNAL
A
B
Continuity
Connector
Terminal
Connector
Terminal
B131
7
R7
1
Yes
8
2
29
4
A
—
Continuity
Connector
Terminal
B131
7
Ground
No
8
29
WKIA5795E
(+)
(-)
Voltage (Approx.)
Connector
Terminal
R7
4
Ground
5V
WKIA5796E
AV
MICROPHONE SIGNAL CIRCUIT
AV-265
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/O BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Check signal between Bluetooth
®
control unit harness connector
B131 terminals 7 and 8.
Are voltage readings as specified?
YES
>> Replace Bluetooth
®
control unit. Refer to
AV-333, "Removal and Installation"
NO
>> Replace microphone. Refer to
AV-331, "Removal and Installation"
.
Connector
(+)
(-)
Reference signal
Terminal
Terminal
B131
7
8
While talking into microphone
ALNIA0934GB
PKIB5037J
AV-266
< ECU DIAGNOSIS INFORMATION >
[COLOR DISPLAY - W/O BOSE]
AV CONTROL UNIT
ECU DIAGNOSIS INFORMATION
AV CONTROL UNIT
Reference Value
INFOID:0000000010064915
VALUES ON THE DIAGNOSIS TOOL
CONSULT data monitor item
TERMINAL LAYOUT
PHYSICAL VALUES
Display Item
Dis-
play
Vehicle status
Remarks
VHCL SPD SIG
ON
Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is nor-
mal.
OFF
Vehicle speed =0 km/h (0 MPH)
PKB SIG
ON
Parking brake is applied.
Changes in indication may be delayed. This is nor-
mal.
OFF
Parking brake is released.
ILLUM SIG
ON
Block the light beam from the auto
light optical sensor when the light SW
is ON .
—
OFF
Expose the auto light optical sensor
to light when the light SW is OFF or
ON.
IGN SIG
ON
Ignition switch ON
—
OFF
Ignition switch in ACC position
REV SIG
ON
Selector lever in R position
Changes in indication may be delayed. This is nor-
mal.
OFF
Selector lever in any position other
than R
AWNIA3230ZZ
AV
AV CONTROL UNIT
AV-267
< ECU DIAGNOSIS INFORMATION >
[COLOR DISPLAY - W/O BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
2
(L)
3
(B/W)
Audio sound signal front LH
Output
ON
Receive audio signal
4
(LG)
5
(B/Y)
Audio sound signal rear LH
Output
ON
Receive audio signal
6
(W/G)
15
(L/B)
Steering switch signal A
Input
ON
Depress volume DOWN
switch.
0.7V
Depress volume UP switch.
1.3V
Depress
switch.
2.0V
Except for above.
3.3V
7
(V/Y)
Ground ACC power supply
Input
Ignition
switch
ACC
—
Battery voltage
9
(R/L)
Ground Illumination signal
Input
OFF
Lighting switch is OFF.
0V
Lighting switch is ON.
Battery voltage
11
(BR)
12
(B/R)
Audio sound signal front
RH
Output
ON
Receive audio signal
13
(LG)
14
(O)
Audio sound signal rear RH
Output
ON
Receive audio signal
16
(GR/L)
15
(L/B)
Steering switch signal B
Input
ON
Depress SOURCE switch.
0V
Depress
switch.
0.7V
Depress
switch.
1.3V
Depress
switch.
2.0V
Except for above.
3.3V
19
(Y/R)
Ground Battery power supply
Input
Ignition
switch
OFF
—
Battery voltage
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
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