Nissan Frontier. Instruction — part 57
AV-220
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITH AMPLIFIER]
STEERING SWITCH
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace spiral cable. Refer to
SR-13, "Removal and Installation"
4.
CHECK HARNESS BETWEEN BLUETOOTH
®
CONTROL UNIT AND AUDIO UNIT
1. Disconnect audio unit connector M46.
2. Check continuity between Bluetooth
®
control unit connector B141 and audio unit connector M46.
3. Check continuity between Bluetooth
®
control unit connector B141 and ground.
Is the inspection result normal?
YES
>> Replace audio unit. Refer to
AV-233, "Removal and Installation"
.
NO
>> Repair or replace harness or connectors.
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
M30
24
M102
15
Yes
25
16
31
18
Bluetooth
®
control unit
Audio unit
Continuity
Connector
Terminal
Connector
Terminal
B141
17
M46
6
Yes
18
16
19
15
Bluetooth
®
control unit
—
Continuity
Connector
Terminal
B141
17
Ground
No
18
19
AV
MICROPHONE SIGNAL CIRCUIT
AV-221
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITH AMPLIFIER]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
MICROPHONE SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000009482162
Regarding Wiring Diagram information, refer to
.
1.
CHECK HARNESS BETWEEN BLUETOOTH
®
CONTROL UNIT AND MICROPHONE
1. Turn ignition switch OFF.
2. Disconnect Bluetooth
®
control unit connector B141 and microphone connector.
3. Check continuity between Bluetooth
®
control unit connector B141 and microphone connector R8.
4. Check continuity between Bluetooth
®
control unit connector B141 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK MICROPHONE POWER SUPPLY
1. Connect Bluetooth
®
control unit connector B141 and microphone connector.
2. Turn ignition switch ON.
3. Check voltage between microphone connector R8 terminal 4 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace Bluetooth
®
control unit. Refer to
AV-241, "Removal and Installation"
3.
CHECK MICROPHONE SIGNAL
Check signal between Bluetooth
®
control unit connector B141 with CONSULT or and oscilloscope.
Bluetooth
®
control unit
Microphone
Continuity
Connector
Terminal
Connector
Terminal
B141
7
R8
1
Yes
8
2
29
4
Bluetooth
®
control unit
—
Continuity
Connector
Terminal
B141
7
Ground
No
8
29
Microphone
Ground
Value (Approx.)
Connector
Terminal
R8
4
—
5V
AV-222
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITH AMPLIFIER]
MICROPHONE SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> Replace Bluetooth
®
control unit. Refer to
AV-241, "Removal and Installation"
NO
>> Replace microphone. Refer to
AV-243, "Removal and Installation"
.
Bluetooth
®
control unit connector B141
Condition
Reference signal
(+)
(-)
Terminal
Terminal
7
8
Speak into microphone.
PKIB5037J
AV
USB CONNECTOR
AV-223
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITH AMPLIFIER]
C
D
E
F
G
H
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J
K
L
M
B
A
O
P
USB CONNECTOR
Diagnosis Procedure
INFOID:0000000009482163
Regarding Wiring Diagram information, refer to
.
1.
CHECK USB INTERFACE HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M65 and USB interface connector M214.
3. Check continuity between audio unit connector M65 and USB interface connector M214.
4. Check continuity between audio unit connector M65 and ground.
Is the inspection result normal?
YES
>> Replace the USB interface. Refer to
AV-247, "Removal and Installation"
.
NO
>> Repair or replace harness or connectors.
Audio unit
USB interface
Continuity
Connector
Terminal
Connector
Terminal
M65
53
M214
4
Yes
54
1
55
2
56
3
57
5
Audio unit
—
Continuity
Connector
Terminal
M65
54
Ground
No
57
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