Nissan Maxima. Manual — part 76
AV-124
< DTC/CIRCUIT DIAGNOSIS >
[MONOCHROME DISPLAY - W/ BOSE]
STEERING SWITCH
3.
CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AUDIO UNIT
1. Disconnect audio unit connector M135.
2. Check continuity between audio unit harness connector M135 and combination switch (spiral cable) har-
ness connector M30.
3. Check continuity between audio unit connector M135 and ground.
Are the continuity results as specified?
YES
>> GO TO 4.
NO
>> Repair harness.
4.
COMBINATION SWITCH (SPIRAL CABLE) CHECK
1. Check continuity between combination switch (spiral cable) har-
ness connector M30 (A) and M88 (B).
Does the combination switch (spiral cable) check OK?
YES
>> GO TO 5.
NO
>> Replace combination switch (spiral cable). Refer to
SR-15, "Removal and Installation"
.
5.
CHECK HARNESS BETWEEN BLUETOOTH
®
CONTROL UNIT AND AUDIO UNIT
1. Disconnect audio unit connector M132.
2. Check continuity between Bluetooth
®
control unit harness connector B131 and audio unit harness con-
nector M132.
3. Check continuity between Bluetooth
®
control unit connector B131 and ground.
Are the continuity results as specified?
YES
>> GO TO 6.
Connector
Terminal
Connector
Terminal
Continuity
M135
23
M30
24
Yes
24
31
30
33
Connector
Terminal
—
Continuity
M135
23
Ground
No
24
30
A
B
Continuity
Connector
Terminal
Connector
Terminal
M30
24
M88
14
Yes
31
15
33
17
ALNIA0931GB
Connector
Terminal
Connector
Terminal
Continuity
B131
17
M132
6
Yes
18
16
19
15
Connector
Terminal
—
Continuity
B131
17
Ground
No
18
19
AV
STEERING SWITCH
AV-125
< DTC/CIRCUIT DIAGNOSIS >
[MONOCHROME DISPLAY - W/ BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
NO
>> Repair harness.
6.
CHECK AUDIO UNIT VOLTAGE
1. Connect audio unit harness connector M132 and Bluetooth
®
control unit harness connector B131.
2. Turn ignition switch ON.
3. Check voltage between audio unit harness connector M132 terminals.
Are the continuity results as specified?
YES
>> Replace Bluetooth
®
control unit. Refer to
AV-177, "Removal and Installation"
NO
>> Replace audio unit. Refer to
AV-161, "Removal and Installation"
.
(+)
(-)
Voltage
(Approx.)
Audio unit
Audio unit
Connector
Terminal
Connector
Terminal
M132
6
M132
15
3.3V
16
AV-126
< DTC/CIRCUIT DIAGNOSIS >
[MONOCHROME DISPLAY - W/ BOSE]
MICROPHONE SIGNAL CIRCUIT
MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000009471247
Voice signals are transmitted from the microphone to the Bluetooth
®
control unit using the microphone signal
circuits.
Diagnosis Procedure
INFOID:0000000009471248
Regarding Wiring Diagram information, refer to
AV-138, "Wiring Diagram - With BOSE Audio 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 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-177, "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-127
< DTC/CIRCUIT DIAGNOSIS >
[MONOCHROME DISPLAY - W/ 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-177, "Removal and Installation"
NO
>> Replace microphone. Refer to
AV-175, "Removal and Installation"
.
Connector
(+)
(-)
Reference signal
Terminal
Terminal
B131
7
8
While talking into microphone
ALNIA0934GB
PKIB5037J
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