Nissan Xterra. Manual — part 23
AV-84
< BASIC INSPECTION >
[DISPLAY AUDIO]
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000009485182
OVERALL SEQUENCE
DETAILED FLOW
1.
GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the condition and the environment when the
incident/malfunction occurred).
>> GO TO 2.
2.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition
when the symptom is detected.
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
ALNIA0182GB
AV
DIAGNOSIS AND REPAIR WORKFLOW
AV-85
< BASIC INSPECTION >
[DISPLAY AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
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.
Was the repair confirmed?
YES
>> Inspection End.
NO
>> GO TO 2.
AV-86
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO]
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
INFOID:0000000009485183
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 M44.
3. Check voltage between audio unit connector M44 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
Check continuity between audio unit connectors M44, M45 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:0000000009485184
Regarding Wiring Diagram information, refer to
1.
CHECK FUSE
Terminal No.
Signal name
Fuse No.
7
ACC power supply
4 (10A)
19
Battery power supply
29 (20A)
Audio unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M44
7
—
Ignition switch: ON
Battery voltage
19
Ignition switch: OFF
Audio unit
Ground
Continuity
Connector
Terminal
M44
20
—
Yes
M45
47
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-87
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
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 B141.
3. Check voltage between Bluetooth
®
control unit connector B141 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 B141 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
MICROPHONE
MICROPHONE : Diagnosis Procedure
INFOID:0000000009485185
Regarding Wiring Diagram information, refer to
1.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between microphone connector R8 and ground.
Terminal No.
Signal name
Fuse No.
1
Battery power supply
29 (20A)
2
ACC power supply
4 (10A)
3
Ignition power supply
12 (10A)
Bluetooth
®
control unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
B141
1
—
Ignition switch: OFF
Battery voltage
2
Ignition switch: ON
3
Bluetooth
®
control unit
Ground
Continuity
Connector
Terminal
B141
4
—
Yes
21
22
(+)
(-)
Value (Approx.)
Connector
Terminal
R8
4
Ground
5V
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