Nissan Sentra. Manual — part 11
AV-36
< BASIC INSPECTION >
[BASE AUDIO]
DIAGNOSIS AND REPAIR WORKFLOW
Is malfunctioning part detected?
YES
>> GO TO 4
NO
>> GO TO 2
4.
REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure.
>> GO TO 5
5.
FINAL CHECK
Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Has the symptom been repaired?
YES
>> Inspection End.
NO
>> GO TO 2
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-37
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
C
D
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F
G
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B
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
INFOID:0000000009758810
Regarding Wiring Diagram information, refer to
1.
CHECK FUSE
Check that the following fuses are not blown.
Are the fuses blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M43.
3. Check voltage between audio unit connector M43 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M44.
3. Check continuity between audio unit connector M44 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
BLUETOOTH® CONTROL UNIT
BLUETOOTH® CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009758811
Regarding Wiring Diagram information, refer to
Terminal No.
Signal name
Fuse No.
7
ACC power supply
18 (10A)
19
Battery power supply
26 (15A)
Audio unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M43
7
—
Ignition switch: ON
Battery voltage
19
Ignition switch: OFF
Audio unit
Ground
Continuity
Connector
Terminal
M44
23
—
Yes
AV-38
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
POWER SUPPLY AND GROUND CIRCUIT
1.
CHECK FUSE
Check that the following fuses are not blown.
Are the fuses blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Bluetooth
®
control unit connector M45.
3. Check voltage between Bluetooth
®
control unit connector M45 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between Bluetooth
®
control unit connector M45 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
Terminal No.
Signal name
Fuse No.
1
Battery power supply
26 (15A)
2
ACC power supply
18 (10A)
3
Ignition signal
5 (10A)
Bluetooth
®
control unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M45
1
—
Ignition switch: OFF
Battery voltage
2
Ignition switch: ACC
3
Ignition switch: ON
Bluetooth
®
control unit
Ground
Continuity
Connector
Terminal
M45
4
—
Yes
21
22
23
27
AV
FRONT DOOR SPEAKER
AV-39
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
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FRONT DOOR SPEAKER
Diagnosis Procedure
INFOID:0000000009758812
Regarding Wiring Diagram information, refer to
1.
CONNECTOR CHECK
Check the audio unit and speaker connectors for the following:
• Proper connection
• Damage
• Disconnected or loose terminals
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair the terminals or connectors.
2.
CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY
1. Disconnect audio unit connector M43 and suspect front door speaker connector.
2. Check continuity between audio unit connector M43 and suspect front door speaker connector.
3. Check continuity between audio unit connector M43 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness or connectors.
3.
CHECK FRONT DOOR SPEAKER SIGNAL
1. Connect audio unit connector M43 and suspect front door speaker connector.
2. Turn ignition switch to ACC.
3. Push audio unit POWER switch.
4. Check signal between the terminals of audio unit connector M43.
Audio unit
Front door speaker
Continuity
Connector
Terminal
Connector
Terminal
M43
2
D10 (LH)
1
Yes
3
2
11
D110 (RH)
1
12
2
Audio unit
Ground
Continuity
Connector
Terminal
M43
2
—
No
3
11
12
Audio unit connector M43
Condition
Reference value
(+)
(
−)
Terminal
Terminal
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