Nissan Leaf. Manual — part 17
AV
MICROPHONE SIGNAL CIRCUIT
AV-59
< DTC/CIRCUIT DIAGNOSIS >
[AUDIO W/O NAVI (EXCEPT MEXICO)]
C
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MICROPHONE SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000010122484
Regarding Wiring Diagram information, refer to
1.
CHECK HARNESS BETWEEN BLUETOOTH
®
CONTROL UNIT AND MICROPHONE
1. Turn power switch OFF.
2. Disconnect Bluetooth
®
control unit connector B9 and microphone connector R3.
3. Check continuity between Bluetooth
®
control unit connector B9 and microphone connector R3.
4. Check continuity between Bluetooth
®
control unit connector B9 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connectors.
2.
CHECK MICROPHONE POWER SUPPLY
1. Connect Bluetooth
®
control unit connector B9 and microphone connector R3.
2. Turn power switch ON.
3. Check voltage between microphone connector R3 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace Bluetooth
®
control unit. Refer to
AV-73, "Removal and Installation"
.
3.
CHECK MICROPHONE SIGNAL
Check signal between terminals of Bluetooth
®
control unit connector B9.
Bluetooth
®
control unit
Microphone
Continuity
Connector
Terminal
Connector
Terminal
B9
7
R3
1
Yes
8
2
29
4
Bluetooth
®
control unit
Ground
Continuity
Connector
Terminal
B9
7
—
No
29
Microphone
Ground
Voltage
(Approx.)
(+)
(-)
Connector
Terminal
R3
4
—
5V
AV-60
< DTC/CIRCUIT DIAGNOSIS >
[AUDIO W/O NAVI (EXCEPT MEXICO)]
MICROPHONE SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> Replace Bluetooth
®
control unit. Refer to
AV-73, "Removal and Installation"
.
NO
>> Replace microphone. Refer to
AV-72, "Removal and Installation"
.
Bluetooth
®
control unit connector B9
Condition
Reference value
(+)
(-)
Terminal
Terminal
7
8
Speak into microphone.
PKIB5037J
A V
STEERING SWITCH
AV-61
< DTC/CIRCUIT DIAGNOSIS >
[AUDIO W/O NAVI (EXCEPT MEXICO)]
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STEERING SWITCH
Diagnosis Procedure
INFOID:0000000010122485
Regarding Wiring Diagram information, refer to
1.
CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Turn power switch OFF.
2. Disconnect combination switch connector M112.
3. Check resistance between the terminals of combination switch connector M112.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace steering switches. Refer to
AV-75, "Removal and Installation"
2.
CHECK HARNESS BETWEEN BLUETOOTH
®
CONTROL UNIT AND COMBINATION SWITCH
1. Disconnect Bluetooth
®
control unit connector B9 and combination switch connector M92.
2. Check continuity between Bluetooth
®
control unit connector B9 and combination switch connector M92.
3. Check continuity between Bluetooth
®
control unit connector B9 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
Combination switch connector M112
Condition
Resistance
Ω
(Approx.)
Terminal
Terminal
14
17
Depress SOURCE switch.
1
Depress
switch.
121
Depress
switch.
321
Depress
switch.
723
15
Depress
switch.
1
Depress
switch.
121
Depress
switch.
321
Bluetooth
®
control unit
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
B9
12
M92
24
Yes
13
31
14
33
Bluetooth
®
control unit
Ground
Continuity
Connector
Terminal
B9
12
—
No
13
14
AV-62
< DTC/CIRCUIT DIAGNOSIS >
[AUDIO W/O NAVI (EXCEPT MEXICO)]
STEERING SWITCH
3.
CHECK COMBINATION SWITCH
Check continuity between combination switch connectors M112 and M92.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace spiral cable. Refer to
SR-23, "Removal and Installation"
4.
CHECK HARNESS BETWEEN BLUETOOTH
®
CONTROL UNIT AND AUDIO UNIT
1. Disconnect audio unit connector M83.
2. Check continuity between Bluetooth
®
control unit connector B9 and audio unit connector M83.
3. Check continuity between Bluetooth
®
control unit connector B9 and ground.
Is the inspection result normal?
YES
>> Replace audio unit. Refer to
AV-69, "Removal and Installation"
.
NO
>> Repair or replace harness or connectors.
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
M112
14
M92
24
Yes
15
31
17
33
Bluetooth
®
control unit
Audio unit
Continuity
Connector
Terminal
Connector
Terminal
B9
17
M83
6
Yes
18
16
19
15
Bluetooth
®
control unit
Ground
Continuity
Connector
Terminal
B9
17
—
No
18
19
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